[\u8f6c\u5e16]Java\u56fe\u5f62\u7528\u6237\u754c\u9762\u8bbe\u8ba1
\u4e00. AWT \u548c SWING
\u3000\u3000AWT \u548c SWING \u662f Java \u8bbe\u8ba1 GUI \u7528\u6237\u754c\u9762\u7684\u57fa\u7840\u3002\u4e0e AWT \u7684\u91cd\u91cf\u7ea7\u7ec4\u4ef6\u4e0d\u540c\uff0cSwing \u4e2d\u5927\u90e8\u5206\u662f\u8f7b\u91cf\u7ea7\u7ec4\u4ef6\u3002\u6b63\u662f\u8fd9\u4e2a\u539f\u56e0\uff0cSwing \u51e0\u4e4e\u65e0\u6240\u4e0d\u80fd\uff0c\u4e0d\u4f46\u6709\u5404\u5f0f\u5404\u6837\u5148\u8fdb\u7684\u7ec4\u4ef6\uff0c\u800c\u4e14\u66f4\u4e3a\u7f8e\u89c2\u6613\u7528\u3002\u6240\u4ee5\u4e00\u5f00\u59cb\u4f7f\u7528 AWT \u7684\u7a0b\u5e8f\u5458\u5f88\u5feb\u5c31\u8f6c\u5411\u4f7f\u7528 Swing \u4e86\u3002
\u3000\u3000\u90a3\u4e3a\u4ec0\u4e48 AWT \u7ec4\u4ef6\u6ca1\u6709\u6d88\u4ea1\u5462\uff1f\u56e0\u4e3a Swing \u662f\u67b6\u6784\u5728 AWT \u4e4b\u4e0a\u7684\uff0c\u6ca1\u6709 AWT \u5c31\u6ca1\u6709 Swing\u3002\u6240\u4ee5\u7a0b\u5e8f\u5458\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u4e60\u60ef\u9009\u62e9\u4f7f\u7528 AWT \u6216\u8005\u662f Swing\u3002\u4f46\u662f\uff0c\u6700\u597d\u4e0d\u8981\u4e8c\u8005\u6df7\u7528\u2014\u2014\u9664\u5f00\u663e\u793a\u98ce\u683c\u4e0d\u540c\u4e0d\u8bf4\uff0c\u8fd8\u5f88\u53ef\u80fd\u9020\u6210\u5c42\u6b21 (Z-Order) \u9519\u4e71\uff0c\u6bd4\u5982\u4e0b\u4f8b\uff1a
\/**
* TestPanels.java
* @author Fancy
*\/
import javax.swing.*;
import java.awt.*;<\/p>\n
public class TestPanels extends JFrame {<\/p>\n
\u3000public TestPanels() {
\u3000\u3000setDefaultCloseOperation(EXIT_ON_CLOSE);<\/p>\n
\u3000\u3000JPanel panel = new JPanel();
\u3000\u3000for (int i = 0; i < 2; i++) {
\u3000\u3000\u3000panel.add(new JButton(“Button 00” + i));
\u3000\u3000}<\/p>\n
\u3000\u3000JTextArea textArea = new JTextArea(5, 15);
\u3000\u3000textArea.setLineWrap(true);
\u3000\u3000JScrollPane scrollPane = new JScrollPane(textArea);
\u3000\u3000getContentPane().add(panel, BorderLayout.NORTH);
\u3000\u3000getContentPane().add(scrollPane, BorderLayout.CENTER);<\/p>\n
\u3000\u3000pack();
\u3000}<\/p>\n
\u3000public static void main(String[] args) {
\u3000\u3000TestPanels tp = new TestPanels();
\u3000\u3000tp.show();
\u3000}<\/p>\n
} \/\/\u8fd0\u884c\u8fd9\u4e2a\u7a0b\u5e8f\uff0c\u5e76\u7528\u9f20\u6807\u62d6\u52a8\u90a3\u4e2a\u540d\u4e3a”cover”\u7684\u5b50\u7a97\u53e3\uff0c\u6211\u4eec\u4f1a\u53d1\u73b0\u4e00\u4e2a\u975e\u5e38\u6709\u8da3\u7684\u73b0\u8c61\uff0c\u5982\u56fe\uff1a<\/p>\n
\u3000\u3000\u663e\u7136 cover \u5b50\u7a97\u53e3\u662f\u5728 controls \u5b50\u7a97\u53e3\u4e4b\u4e0a\u7684\uff0c\u4f46\u662f\u5b83\u53ea\u7f69\u76d6\u4f4f\u4e86 Swing Button\uff0c\u6ca1\u6709\u7f69\u76d6\u4f4f AWT Button\u3002\u518d\u770b\u4e00\u4f1a\u513f\uff0c\u4f60\u662f\u4e0d\u662f\u6709\u8fd9\u6837\u4e00\u79cd\u611f\u89c9\uff1aSwing Button \u662f”\u753b”\u4e0a\u53bb\u7684\uff0c\u800c AWT Button \u5219\u662f”\u8d34”\u4e0a\u53bb\u7684\u3002\u8fd9\u5c31\u662f\u4e8c\u8005\u6df7\u7528\u9020\u6210\u5c42\u6b21\u9519\u4e71\u7684\u4e00\u4e2a\u4f8b\u5b50\u3002<\/p>\n
\u3000\u3000Swing \u7ec4\u4ef6\u6709\u7f8e\u89c2\u3001\u6613\u7528\u3001\u7ec4\u4ef6\u91cf\u5927\u7b49\u7279\u70b9\uff0c\u4e5f\u6709\u7f3a\u70b9\u2014\u2014\u4f7f\u7528 Swing \u7ec4\u4ef6\u7684\u7a0b\u5e8f\u901a\u5e38\u4f1a\u6bd4\u4f7f\u7528 AWT \u7ec4\u4ef6\u7684\u7a0b\u5e8f\u8fd0\u884c\u66f4\u6162\u3002\u4f46\u662f\u5927\u5bb6\u90fd\u8fd8\u662f\u66f4\u559c\u6b22\u7528 Swing \u7ec4\u4ef6\uff0c\u539f\u56e0\u4f55\u5728\uff1f\u56e0\u4e3a\u968f\u7740\u8ba1\u7b97\u673a\u786c\u4ef6\u7684\u5347\u7ea7\uff0c\u4e00\u70b9\u70b9\u901f\u5ea6\u5df2\u7ecf\u4e0d\u662f\u95ee\u9898\u3002\u76f8\u53cd\u7684\uff0c\u7528\u6237\u66f4\u9700\u8981\u7f8e\u89c2\u7684\u7528\u6237\u754c\u9762\uff0c\u5f00\u53d1\u4eba\u5458\u5219\u66f4\u9700\u8981\u6613\u7528\u7684\u5f00\u53d1\u7ec4\u4ef6\u3002
\u3000\u3000\u2014\u2014\u597d\uff0c\u6211\u8fd9\u5c31\u6765\u6559\u4f60\u4f7f\u7528 Swing \u7ec4\u4ef6\u5f00\u53d1\u56fe\u5f62\u7528\u6237\u754c\u9762\u7684 Java \u5e94\u7528\u7a0b\u5e8f\u3002<\/p>\n
\u4e8c. \u6846\u67b6\u3001\u76d1\u542c\u5668\u548c\u4e8b\u4ef6 <\/p>\n
\u3000\u3000\u6846\u67b6 (Frame) \u662f Java \u56fe\u5f62\u7528\u6237\u754c\u9762\u7684\u57fa\u7840\uff0c\u5b83\u5c31\u662f\u6211\u4eec\u901a\u5e38\u6240\u8bf4\u7684\u7a97\u53e3\uff0c\u662f Windows\/XWindow \u5e94\u7528\u7a0b\u5e8f\u7684\u5178\u578b\u7279\u5f81\u3002\u8bf4\u5230 Windows\/XWindow\uff0c\u5927\u5bb6\u5f88\u5bb9\u6613\u8054\u60f3\u5230”\u4e8b\u4ef6 (Event) \u9a71\u52a8”\u3002Java \u7684\u56fe\u5f62\u7528\u6237\u754c\u9762\u6b63\u662f\u4e8b\u4ef6\u9a71\u52a8\u7684\uff0c\u5e76\u4e14\u7531\u5404\u79cd\u5404\u6837\u7684\u76d1\u542c\u5668 (Listener) \u8d1f\u8d23\u6355\u6349\u5404\u79cd\u4e8b\u4ef6\u3002
\u3000\u3000\u5982\u679c\u6211\u4eec\u9700\u8981\u5bf9\u67d0\u4e00\u4e2a\u7ec4\u4ef6\u7684\u67d0\u79cd\u4e8b\u4ef6\u8fdb\u884c\u6355\u6349\u548c\u5904\u7406\u65f6\uff0c\u5c31\u9700\u8981\u4e3a\u5176\u6dfb\u52a0\u76d1\u542c\u5668\u3002\u6bd4\u5982\uff0c\u6211\u4eec\u8981\u5728\u4e00\u4e2a\u7a97\u53e3 (JFrame) \u6fc0\u6d3b\u65f6\u6539\u53d8\u5b83\u7684\u6807\u9898\uff0c\u6211\u4eec\u5c31\u9700\u8981\u4e3a\u8fd9\u4e2a\u7a97\u53e3 (JFrame \u5bf9\u8c61) \u6dfb\u52a0\u4e00\u4e2a\u53ef\u4ee5\u76d1\u542c\u5230”\u6fc0\u6d3b\u7a97\u53e3”\u8fd9\u4e00\u4e8b\u4ef6\u7684\u76d1\u542c\u5668\u2014\u2014WindowListener\u3002
\u3000\u3000\u600e\u4e48\u6dfb\u52a0\u76d1\u542c\u5668\u5462\uff1f\u8fd9\u901a\u5e38\u7531\u7ec4\u4ef6\u7c7b\u63d0\u4f9b\u7684\u4e00\u4e2a addXXXXXListener \u7684\u65b9\u6cd5\u6765\u5b8c\u6210\u3002\u6bd4\u5982 JFrame \u5c31\u63d0\u4f9b\u6709 addWindowListener \u65b9\u6cd5\u6dfb\u52a0\u7a97\u53e3\u76d1\u542c\u5668 (WindowListener)\u3002
\u3000\u3000\u4e00\u4e2a\u76d1\u542c\u5668\u5e38\u5e38\u4e0d\u53ea\u76d1\u542c\u4e00\u4e2a\u4e8b\u4ef6\uff0c\u800c\u662f\u53ef\u4ee5\u76d1\u542c\u76f8\u5173\u7684\u591a\u4e2a\u4e8b\u4ef6\u3002\u6bd4\u5982 WindowListener \u9664\u4e86\u76d1\u542c\u7a97\u53e3\u6fc0\u6d3b\u4e8b\u4ef6 (windowActivate) \u4e4b\u5916\uff0c\u8fd8\u53ef\u4ee5\u76d1\u542c\u7a97\u53e3\u5173\u95ed\u4e8b\u4ef6 (windowClosing) \u7b49\u3002\u90a3\u4e48\u8fd9\u4e9b\u4e8b\u4ef6\u600e\u4e48\u533a\u5206\u5462\uff1f\u5c31\u9760\u91cd\u8f7d\u76d1\u542c\u5668\u7c7b (Class) \u7684\u591a\u4e2a\u65b9\u6cd5 (Method) \u4e86\uff0c\u76d1\u542c\u5668\u76d1\u542c\u5230\u67d0\u4e2a\u4e8b\u4ef6\u540e\uff0c\u4f1a\u81ea\u52a8\u8c03\u7528\u76f8\u5173\u7684\u65b9\u6cd5\u3002\u6211\u4eec\u53ea\u8981\u91cd\u8f7d\u8fd9\u4e2a\u65b9\u6cd5\uff0c\u5c31\u53ef\u4ee5\u5904\u7406\u76f8\u5e94\u7684\u4e8b\u4ef6\u4e86\u3002
\u3000\u3000\u4e0d\u59a8\u5148\u770b\u4e00\u4e2a\u4f8b\u5b50\uff1a
\/**
* TestFrame.java
* @author Fancy
*\/
import javax.swing.*;
import java.awt.event.*;<\/p>\n
public class TestFrame extends JFrame {<\/p>\n
\u3000private int counter = 0;<\/p>\n
\u3000public TestFrame() {
\u3000\u3000\/* \u4f7f\u7528\u533f\u540d\u7c7b\u6dfb\u52a0\u4e00\u4e2a\u7a97\u53e3\u76d1\u542c\u5668 *\/
\u3000\u3000addWindowListener(new WindowAdapter() {
\u3000\u3000public void windowClosing(WindowEvent e) {
\u3000\u3000\u3000System.out.println(“Exit when Closed event”);
\u3000\u3000\u3000System.exit(0); \/\/\u9000\u51fa\u5e94\u7528\u7a0b\u5e8f
\u3000\u3000}<\/p>\n
\u3000\u3000public void windowActivated(WindowEvent e) {
\u3000\u3000\u3000setTitle(“Test Frame ” + counter++); \/\/ \u6539\u53d8\u7a97\u53e3\u6807\u9898
\u3000\u3000}
\u3000});<\/p>\n
\u3000setResizable(false); \/\/ \u8bbe\u7f6e\u7a97\u53e3\u4e3a\u56fa\u5b9a\u5927\u5c0f
\u3000setSize(200, 150);
}<\/p>\n
\u3000public static void main(String[] args) {
\u3000\u3000TestFrame tf = new TestFrame();
\u3000\u3000tf.show();
\u3000}
}
\u3000\u3000\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u8bbe\u8ba1\u4e86\u4e00\u4e2a\u7a97\u53e3\u7c7b(public class TestFrame extends JFrame { …)\uff0c\u5e76\u4e14\u4e3a\u8fd9\u4e2a\u7a97\u53e3\u6dfb\u52a0\u4e86\u4e00\u4e2a\u7a97\u53e3\u76d1\u542c\u5668 (addWindowListener(new WindowAdapter() …)\u3002\u800c\u6211\u4eec\u6dfb\u52a0\u7684\u8fd9\u4e2a\u7a97\u53e3\u76d1\u542c\u5668\u4e3b\u8981\u76d1\u542c\u4e86\u4e24\u4e2a\u4e8b\u4ef6\uff1a\u7a97\u53e3\u5173\u95ed (public void windowClosing(WindowEvent e) …) \u548c\u7a97\u53e3\u6fc0\u6d3b (public void windowActivated(WindowEvent e) …)\u3002\u5728\u7a97\u53e3\u5173\u95ed\u4e8b\u4ef6\u4e2d\u6211\u4eec\u9000\u51fa\u4e86\u6574\u4e2a\u5e94\u7528\u7a0b\u5e8f(System.exit(0);)\uff0c\u800c\u5728\u7a97\u53e3\u6fc0\u6d3b\u4e8b\u4ef6\u4e2d\uff0c\u6211\u4eec\u6539\u53d8\u4e86\u7a97\u53e3\u7684\u6807\u9898 (setTitle(“Test Frame ” + counter++);)\u3002\u6700\u540e\uff0c\u6211\u4eec\u5728 main \u65b9\u6cd5\u4e2d\u663e\u793a\u4e86\u8fd9\u7a97\u53e3\u7c7b\u7684\u4e00\u4e2a\u5b9e\u4f8b\uff0c\u8fd0\u884c\u5f97\u5230\u4e0b\u56fe\u6240\u793a\u7684\u7ed3\u679c\uff1a
\u3000\u3000\u8fd9\u4e2a\u7a0b\u5e8f\u7684\u8fd0\u884c\u7ed3\u679c\u5c31\u662f\u4e00\u4e2a\u4ec0\u4e48\u4e1c\u897f\u90fd\u6ca1\u6709\u52a0\u7684\u6846\u67b6\uff0c\u4e5f\u5c31\u662f\u4e00\u4e2a\u7a7a\u7a97\u53e3\u3002\u90a3\u4e48\uff0c\u4f60\u77e5\u9053\u663e\u793a\u4e00\u4e2a\u7a97\u53e3\u6700\u4e3b\u8981\u7684\u51e0\u53e5\u4ee3\u7801\u5417\uff1f\u4e0d\u77e5\u9053\u6ca1\u5173\u7cfb\uff0c\u6211\u6765\u544a\u8bc9\u4f60\uff0c\u663e\u793a\u4e00\u4e2a\u7a97\u53e3\u53ea\u9700\u8981\u505a\u4e09\u4ef6\u4e8b\uff1a\u751f\u6210\u5b9e\u4f8b(\u5bf9\u8c61) -> \u8bbe\u7f6e\u5927\u5c0f -> \u663e\u793a\uff0c\u76f8\u5e94\u7684\uff0c\u5c31\u662f\u4e0b\u9762\u7684\u4e09\u53e5\u4ee3\u7801\uff1a
\u3000\u3000JFrame frame = new JFrame(“Frame's Title”);
\u3000\u3000frame.setSize(400, 300);
\u3000\u3000frame.show();
\u3000\u3000\u4e5f\u8bb8\u4f60\u4f1a\u8bf4\uff1a\u7b2c\u4e00\u53e5\u7684\u610f\u601d\u6211\u6e05\u695a\uff0c\u7b2c\u4e09\u53e5\u7684\u610f\u601d\u6211\u4e5f\u660e\u767d\uff0c\u4e3a\u4ec0\u4e48\u4e00\u5b9a\u8981\u7b2c\u4e8c\u53e5\u5462\uff1f\u5176\u5b9e\u60f3\u60f3\u4e5f\u5c31\u660e\u767d\u4e86\uff0c\u53eb\u4f60\u753b\u4e00\u4e2a\u6ca1\u6cd5\u6709\u5927\u5c0f\u7684\u77e9\u5f62\u4f60\u80fd\u753b\u51fa\u6765\u5417\uff1f\u4e0d\u80fd\u3002\u540c\u6837\uff0c\u6ca1\u6709\u5927\u5c0f\u7684\u7a97\u53e3\uff0c\u600e\u4e48\u663e\u793a\uff1f\u6240\u4ee5\u6211\u4eec\u9700\u8981\u7528 setSize(int width, int height) \u65b9\u6cd5\u4e3a\u5176\u8bbe\u7f6e\u5927\u5c0f\u3002\u6211\u4eec\u8fd8\u6709\u53e6\u4e00\u79cd\u65b9\u6cd5\uff1a\u7528 JFrame \u7684 pack() \u65b9\u6cd5\u8ba9\u5b83\u81ea\u5df1\u9002\u914d\u4e00\u4e2a\u5927\u5c0f\u3002pack() \u5728\u591a\u6570\u65f6\u5019\u662f\u4ee4\u4eba\u6ee1\u610f\u7684\uff0c\u4f46\u6709\u65f6\uff0c\u5b83\u4e5f\u4f1a\u8ba9\u4f60\u54ed\u7b11\u4e0d\u5f97\u2014\u2014\u591a\u8bd5\u8bd5\u5c31\u77e5\u9053\u4e86\u3002<\/p>\n
\u3000\u3000\u5728 JFrame \u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 addWindowListener \u65b9\u6cd5\u52a0\u5165\u4e00\u4e2a\u76d1\u542c\u5668 WindowListener (addWindowListener(new WindowAdapter() …) \u53bb\u76d1\u542c\u53d1\u751f\u5728 JFrame \u4e0a\u7684\u7a97\u53e3\u4e8b\u4ef6\u3002WindowListener \u662f\u4e00\u4e2a\u63a5\u53e3\uff0c\u5728 java.awt.event \u8fd9\u4e2a\u5305\u4e2d\uff0c\u4f46\u662f\u4e0a\u4f8b\u4e2d\u597d\u8c61\u5e76\u6ca1\u6709\u4f7f\u7528 WindowListener\uff0c\u800c\u662f\u4f7f\u7528\u7684 WindowsAdapter \u5427\uff0c\u8fd9\u662f\u600e\u4e48\u56de\u4e8b\uff1f <\/p>\n
\u3000\u3000WindowAdapter \u662f WindowsListener \u63a5\u53e3\u7684\u4e00\u4e2a\u6700\u7b80\u5355\u7684\u5b9e\u73b0\uff0c\u4e5f\u5728\u5305 java.awt.event \u4e2d\u3002\u5982\u679c\u6211\u4eec\u76f4\u63a5\u4f7f\u7528 WindowListener \u4ea7\u751f\u4e00\u4e2a\u533f\u540d\u7c7b\uff0c\u9700\u8981\u5b9e\u73b0\u5b83\u7684\u6bcf\u4e00\u4e2a\u65b9\u6cd5 (\u4e00\u5171 7 \u4e2a)\u3002\u4f46 WindowAdapter \u4f5c\u4e3a WindowListener \u6700\u7b80\u5355\u7684\u5b9e\u73b0\uff0c\u5df2\u7ecf\u5b9e\u73b0\u4e86\u5b83\u7684\u6bcf\u4e00\u4e2a\u65b9\u6cd5\u4e3a\u7a7a\u65b9\u6cd5 (\u5373\u53ea\u5305\u542b\u7a7a\u8bed\u53e5\uff0c\u6216\u8005\u8bf4\u6ca1\u6709\u8bed\u53e5\u7684\u65b9\u6cd5)\u3002\u7528 WindowAdapter \u5c31\u53ea\u9700\u8981\u91cd\u8f7d\u53ef\u80fd\u7528\u5230\u7684\u65b9\u6cd5 (\u4e0a\u4f8b\u4e2d\u53ea\u6709 2 \u4e2a) \u5c31\u884c\u4e86\uff0c\u800c\u4e0d\u9700\u8981\u518d\u53bb\u5b9e\u73b0\u6bcf\u4e00\u4e2a\u65b9\u6cd5\u3002\u4f18\u70b9\u663e\u800c\u6613\u89c1\u2014\u2014\u51cf\u5c11\u4ee3\u7801\u91cf\u3002<\/p>\n
\u3000\u3000\u5728 JFrame \u4e0a\u53d1\u751f\u7684\u7a97\u53e3\u4e8b\u4ef6 (WindowEvent) \u5305\u62ec\uff1a<\/p>\n
\u3000\u3000windowActivated(WindowEvent e) \u7a97\u53e3\u5f97\u5230\u7126\u70b9\u65f6\u89e6\u53d1
\u3000\u3000windowClosed(WindowEvent e) \u7a97\u53e3\u5173\u95ed\u4e4b\u540e\u89e6\u53d1
\u3000\u3000windowClosing(WindowEvent e) \u7a97\u53e3\u5173\u95ed\u65f6\u89e6\u53d1
\u3000\u3000windowDeactivated(WindowEvent e) \u7a97\u53e3\u5931\u53bb\u7126\u70b9\u65f6\u89e6\u53d1
\u3000\u3000windowDeiconified(WindowEvent e)
\u3000\u3000windowIconified(WindowEvent e)
\u3000\u3000windowOpened(WindowEvent e) \u7a97\u53e3\u6253\u5f00\u4e4b\u540e\u89e6\u53d1 <\/p>\n
\u3000\u3000\u4e0a\u4f8b\u91cd\u8f7d\u4e86\u5176\u4e2d\u4e24\u4e2a\u65b9\u6cd5\u3002\u5982\u679c\u5728\u4e0a\u4f8b\u8fd0\u884c\u4ea7\u751f\u7684\u7a97\u53e3\u548c\u53e6\u5916\u4e00\u4e2a\u5e94\u7528\u7a0b\u5e8f\u7a97\u53e3\u4e4b\u95f4\u6765\u56de\u5207\u6362 (\u5728 Windows \u64cd\u4f5c\u7cfb\u7edf\u4e2d\u4f60\u53ef\u4ee5\u4f7f\u7528 Alt+Tab \u8fdb\u884c\u5207\u6362)……\u8bd5\u8bd5\u770b\uff0c\u4f60\u53d1\u73b0\u4e86\u4ec0\u4e48\uff1f\u6709\u6ca1\u6709\u73b0\u6211\u4eec\u7684\u793a\u4f8b\u7a97\u53e3\u6807\u9898\u4e0a\u7684\u6570\u5b57\u4e00\u76f4\u5728\u589e\u52a0\uff0c\u8fd9\u4fbf\u662f\u5728 windowActivated \u4e8b\u4ef6\u4e2d setTitle(“Test Frame ” + counter++); \u7684\u529f\u52b3\u3002<\/p>\n
\u3000\u3000\u800c\u53e6\u4e00\u4e2a\u4e8b\u4ef6\u5904\u7406\u51fd\u6570 windowClosing \u4e2d\u7684 System.exit(0) \u5219\u4fdd\u8bc1\u4e86\u5f53\u7a97\u53e3\u88ab\u5173\u95ed\u65f6\u9000\u51fa\u5f53\u524d\u7684 Java \u5e94\u7528\u7a0b\u5e8f\u3002\u5982\u679c\u4e0d\u4f5c\u8fd9\u6837\u7684\u5904\u7406\u4f1a\u600e\u6837\u5462\uff1f\u8bd5\u9a8c\u4e4b\u540e\u4f60\u4f1a\u53d1\u73b0\uff0c\u7a97\u53e3\u867d\u7136\u5173\u95ed\u4e86\uff0c\u4f46\u7a0b\u5e8f\u5e76\u6ca1\u6709\u7ed3\u675f\uff0c\u4f46\u6b64\u65f6\uff0c\u9664\u4e86\u4f7f\u7528 ^C \u5f3a\u884c\u7ed3\u675f\u4e4b\u5916\uff0c\u6050\u6015\u4e5f\u6ca1\u6709\u5176\u5b83\u529e\u6cd5\u4e86\u3002\u6240\u4ee5\uff0c\u8fd9\u4e00\u70b9\u975e\u5e38\u91cd\u8981\uff1a\u5982\u679c\u4f60\u60f3\u5728\u5173\u95ed\u7a97\u53e3\u7684\u65f6\u5019\u9000\u51fa\u5e94\u7528\u7a0b\u5e8f\uff0c\u9700\u8981\u4f60\u81ea\u5df1\u5199\u4ee3\u7801\u5904\u7406 windowClosing \u4e8b\u4ef6\u3002……\u4e5f\u4e0d\u5c3d\u7136\uff0c\u5176\u5b9e\u8fd8\u6709\u53e6\u5916\u4e00\u4e2a\u66f4\u7b80\u5355\u7684\u529e\u6cd5\uff0c\u8ba9 JFrame \u81ea\u5df1\u5904\u7406\u8fd9\u4ef6\u4e8b\u2014\u2014\u4f60\u53ea\u9700\u8981\u5982\u4e0b\u8c03\u7528 JFrame \u7684 setDefaultCloseOperation \u5373\u53ef\uff1a<\/p>\n
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
\u3000\u3000
\u3000\u3000\u6211\u4eec\u53ef\u4ee5\u5728 JFrame \u5bf9\u8c61\u4e2d\u6dfb\u52a0 AWT \u6216\u8005 Swing \u7ec4\u4ef6\u3002\u4f46\u662f\uff0c\u867d\u7136\u5b83\u6709 add \u65b9\u6cd5\uff0c\u5374\u4e0d\u80fd\u76f4\u63a5\u7528\u4e8e\u6dfb\u52a0\u7ec4\u4ef6\uff0c\u5426\u5219\u4f1a\u629b\u51fa\u5f02\u5e38\u2014\u2014\u4e0d\u4fe1\u5c31\u8bd5\u8bd5\u3002\u9020\u6210\u8fd9\u4e2a\u73b0\u8c61\u7684\u539f\u56e0\u53ea\u6709\u4e00\u4e2a\u89e3\u91ca\uff1aJFrame \u4e0d\u662f\u4e00\u4e2a\u5bb9\u5668\uff0c\u5b83\u53ea\u662f\u4e00\u4e2a\u6846\u67b6\u3002\u90a3\u4e48\uff0c\u5e94\u8be5\u600e\u4e48\u6dfb\u52a0\u7ec4\u4ef6\u5462\uff1f<\/p>\n
\u3000\u3000JFrame \u6709\u4e00\u4e2a Content Pane\uff0c\u7a97\u53e3\u662f\u663e\u793a\u7684\u6240\u6709\u7ec4\u4ef6\u90fd\u662f\u6dfb\u52a0\u5728\u8fd9\u4e2a Content Pane \u4e2d\u3002JFrame \u63d0\u4f9b\u4e86\u4e24\u4e2a\u65b9\u6cd5\uff1agetContentPane \u548c setContentPane \u5c31\u662f\u7528\u4e8e\u83b7\u53d6\u548c\u8bbe\u7f6e\u5176 Content Pane \u7684\u3002\u901a\u5e38\u6211\u4eec\u4e0d\u9700\u8981\u91cd\u65b0\u8bbe\u7f6e JFrame \u7684 Content Pane\uff0c\u53ea\u9700\u8981\u76f4\u63a5\u83b7\u53d6\u8fd9\u4e2a Content Pane \u6765\u6dfb\u52a0\u7ec4\u4ef6\u7b49\u3002\u5982\uff1a(new JFrame()).getContentPane().add(new Button(“test button”));
\u3000
\u4e09. \u6309\u94ae\u3001\u5207\u6362\u6309\u94ae\u3001\u590d\u9009\u6309\u94ae\u548c\u5355\u9009\u6309\u94ae <\/p>\n
\u3000\u3000\u5207\u6362\u6309\u94ae\uff0c\u6709\u4e24\u79cd\u72b6\u6001\u7684\u6309\u94ae\uff0c\u5373\u6309\u4e0b\u72b6\u6001\u548c\u5f39\u8d77\u72b6\u6001\uff0c\u82e5\u79f0\u4e3a\u9009\u62e9\u72b6\u6001\u6216\u672a\u9009\u62e9\u72b6\u6001\u3002
\u3000\u3000\u590d\u9009\u6309\u94ae\uff0c\u53c8\u53eb\u590d\u9009\u6846\uff0c\u7528\u4e00\u4e2a\u5c0f\u65b9\u6846\u4e2d\u662f\u5426\u6253\u52fe\u6765\u8868\u793a\u4e24\u79cd\u72b6\u6001\u3002
\u3000\u3000\u5355\u9009\u6309\u94ae\uff0c\u53c8\u53eb\u6536\u97f3\u673a\u6309\u94ae\uff0c\u4ee5\u5c0f\u5706\u6846\u6253\u70b9\u8868\u793a\u88ab\u9009\u4e2d\u3002\u5e38\u6210\u7ec4\u51fa\u73b0\uff0c\u4e00\u7ec4\u5355\u9009\u6309\u94ae\u4e2d\u53ea\u6709\u4e00\u4e2a\u80fd\u88ab\u9009\u4e2d\u3002
\u3000\u3000\u53d1\u73b0\u4ec0\u4e48\u4e86\u5417\uff1f\u8fd9\u4e00\u90e8\u5206\u662f\u5728\u8bb2\u5404\u79cd\u5404\u6837\u7684\u6309\u94ae\uff0c\u800c\u4e14\u540e\u4e09\u79cd\u6309\u94ae\u90fd\u6709\u4e24\u79cd\u72b6\u6001\u3002\u5148\u770b\u770b\u8fd9\u4e9b\u6309\u94ae\u90fd\u957f\u6210\u4ec0\u4e48\u6837\uff1a<\/p>\n
\u3000\u3000\u4e0a\u56fe\u4e2d\uff0c\u4ece\u4e0a\u5230\u4e0b\uff0c\u4f9d\u6b21\u5c31\u662f\u6309\u94ae\u3001\u5207\u6362\u6309\u94ae\u3001\u590d\u9009\u6309\u94ae\u548c\u5355\u9009\u6309\u94ae\u3002\u56fe\u793a\u7684\u7a97\u53e3\uff0c\u5c31\u662f\u4e0b\u9762\u8fd9\u4e2a\u4f8b\u5b50\u7684\u8fd0\u884c\u7ed3\u679c\uff1a<\/p>\n
\/**
* TestButtons.java
* @author Fancy
*\/
import javax.swing.*;
import java.awt.event.*;<\/p>\n
public class TestButtons {<\/p>\n
\u3000JFrame frame = new JFrame(“Test Buttons”);
\u3000JButton jButton = new JButton(“JButton”); \/\/\u6309\u94ae
\u3000JToggleButton toggle = new JToggleButton(“Toggle Button”); \/\/\u5207\u6362\u6309\u94ae
\u3000JCheckBox checkBox = new JCheckBox(“Check Box”); \/\/\u590d\u9009\u6309\u94ae
\u3000JRadioButton radio1 = new JRadioButton(“Radio Button 1”); \/\/\u5355\u9009\u6309\u94ae
\u3000JRadioButton radio2 = new JRadioButton(“Radio Button 2”);
\u3000JRadioButton radio3 = new JRadioButton(“Radio Button 3”);
\u3000JLabel label = new JLabel(“Here is Status, look here.”); \/\/\u4e0d\u662f\u6309\u94ae\uff0c\u662f\u9759\u6001\u6587\u672c<\/p>\n
\u3000public TestButtons() {
\u3000\u3000frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
\u3000\u3000frame.getContentPane().setLayout(new java.awt.FlowLayout());<\/p>\n
\u3000\u3000\/* \u4e3a\u4e00\u822c\u6309\u94ae\u6dfb\u52a0\u52a8\u4f5c\u76d1\u542c\u5668 *\/
\u3000\u3000jButton.addActionListener(new ActionListener() {
\u3000\u3000public void actionPerformed(ActionEvent ae) {
\u3000\u3000\u3000label.setText(“You clicked jButton”);
\u3000\u3000}
\u3000});<\/p>\n
\u3000\/* \u4e3a\u5207\u6362\u6309\u94ae\u6dfb\u52a0\u52a8\u4f5c\u76d1\u542c\u5668 *\/
\u3000toggle.addActionListener(new ActionListener() {
\u3000\u3000public void actionPerformed(ActionEvent ae) {
\u3000\u3000\u3000JToggleButton toggle = (JToggleButton) ae.getSource();
\u3000\u3000\u3000if (toggle.isSelected()) {
\u3000\u3000\u3000\u3000label.setText(“You selected Toggle Button”);
\u3000\u3000\u3000} else {
\u3000\u3000\u3000\u3000label.setText(“You deselected Toggle Button”);
\u3000\u3000\u3000}
\u3000\u3000}
\u3000});<\/p>\n
\u3000\/* \u4e3a\u590d\u9009\u6309\u94ae\u6dfb\u52a0\u6761\u76ee\u76d1\u542c\u5668 *\/
\u3000checkBox.addItemListener(new ItemListener() {
\u3000public void itemStateChanged(ItemEvent e) {
\u3000\u3000JCheckBox cb = (JCheckBox) e.getSource();
\u3000\u3000label.setText(“Selected Check Box is ” + cb.isSelected());
\u3000}
});<\/p>\n
\u3000\/* \u7528\u4e00\u4e2a\u6309\u94ae\u7ec4\u5bf9\u8c61\u5305\u5bb9\u4e00\u7ec4\u5355\u9009\u6309\u94ae *\/
\u3000ButtonGroup group = new ButtonGroup();
\u3000\/* \u751f\u6210\u4e00\u4e2a\u65b0\u7684\u52a8\u4f5c\u76d1\u542c\u5668\u5bf9\u8c61\uff0c\u5907\u7528 *\/
\u3000ActionListener al = new ActionListener() {
\u3000public void actionPerformed(ActionEvent ae) {
\u3000\u3000JRadioButton radio = (JRadioButton) ae.getSource();
\u3000\u3000if (radio == radio1) {
\u3000\u3000\u3000label.setText(“You selected Radio Button 1”);
\u3000\u3000} else if (radio == radio2) {
\u3000\u3000\u3000label.setText(“You selected Radio Button 2”);
\u3000\u3000} else {
\u3000\u3000\u3000label.setText(“You selected Radio Button 3”);
\u3000\u3000}
\u3000}
};
\u3000\/* \u4e3a\u5404\u5355\u9009\u6309\u94ae\u6dfb\u52a0\u52a8\u4f5c\u76d1\u542c\u5668 *\/
\u3000radio1.addActionListener(al);
\u3000radio2.addActionListener(al);
\u3000radio3.addActionListener(al);
\u3000\/* \u5c06\u5355\u9009\u6309\u94ae\u6dfb\u52a0\u5230\u6309\u94ae\u7ec4\u4e2d *\/
\u3000group.add(radio1);
\u3000group.add(radio2);
\u3000group.add(radio3);<\/p>\n
\u3000frame.getContentPane().add(jButton);
\u3000frame.getContentPane().add(toggle);
\u3000frame.getContentPane().add(checkBox);
\u3000frame.getContentPane().add(radio1);
\u3000frame.getContentPane().add(radio2);
\u3000frame.getContentPane().add(radio3);
\u3000frame.getContentPane().add(label);<\/p>\n
\u3000frame.setSize(200, 250);
}<\/p>\n
\u3000public void show() {
\u3000\u3000frame.show();
\u3000}<\/p>\n
\u3000public static void main(String[] args) {
\u3000\u3000TestButtons tb = new TestButtons();
\u3000\u3000tb.show();
\u3000}<\/p>\n
}
\u3000\u3000\u9664\u4e00\u822c\u6309\u94ae\u5916\uff0c\u5176\u4f59\u4e09\u79cd\u6309\u94ae\u90fd\u6709\u4e24\u79cd\u72b6\u6001\uff0c\u5373\u9009\u62e9 (\u6309\u4e0b) \u72b6\u6001\u548c\u672a\u9009\u62e9 (\u5f39\u8d77) \u72b6\u6001\u3002\u90a3\u4e48\u6211\u4eec\u53c8\u8be5\u5982\u4f55\u5224\u65ad\u5462\uff1f\u5207\u6362\u6309\u94ae (JToggleButton) \u63d0\u4f9b\u4e86\u4e00\u4e2a isSelected() \u65b9\u6cd5\u7528\u6765\u5224\u65ad\u5f53\u524d\u6240\u5904\u7684\u72b6\u6001\uff0c\u8fd4\u56de\u503c\u4e3a\u771f (true) \u65f6\u8868\u793a\u5b83\u5904\u4e8e\u9009\u62e9\u72b6\u6001\uff0c\u8fd4\u56de\u503c\u4e3a\u5047 (false) \u65f6\u8868\u793a\u5b83\u5904\u4e8e\u672a\u9009\u62e9\u72b6\u6001\u3002\u800c\u590d\u9009\u6309\u94ae (JCheckBox) \u548c\u5355\u9009\u6309\u94ae (JRadioButton) \u90fd\u662f\u4ece JToggleButton \u7ee7\u627f\u7684\uff0c\u6240\u4ee5\u4e5f\u5177\u6709 isSelected() \u65b9\u6cd5\u3002\u5982\u4e0a\u4f8b\u4e2d if (toggle.isSelected()) { … \u7b49\u3002<\/p>\n
\u3000\u3000\u5355\u9009\u6309\u94ae\u7531\u81ea\u8eab\u7684\u7279\u70b9\u51b3\u5b9a\u4e86\u5b83\u4eec\u5fc5\u987b\u6210\u7ec4\u51fa\u73b0\uff0c\u800c\u4e14\u4e00\u7ec4\u4e2d\u53ea\u80fd\u6709\u4e00\u4e2a\u80fd\u88ab\u9009\u4e2d\u3002\u56e0\u6b64\u6211\u4eec\u9700\u8981\u7528\u4e00\u4e2a\u4e13\u95e8\u7684\u7c7b\u2014\u2014ButtonGroup\u2014\u2014\u6765\u7ba1\u7406\u3002\u6dfb\u52a0\u5230 ButtonGroup \u7684\u591a\u4e2a\u5355\u9009\u6309\u94ae\u4e2d\uff0c\u5982\u679c\u6709\u4e00\u4e2a\u88ab\u9009\u62e9\u4e2d\uff0c\u540c\u7ec4\u4e2d\u7684\u5176\u5b83\u5355\u9009\u6309\u94ae\u90fd\u4f1a\u81ea\u52a8\u6539\u53d8\u5176\u72b6\u6001\u4e3a\u672a\u9009\u62e9\u72b6\u6001\u3002\u5728 ButtonGroup \u4e2d\u6dfb\u52a0\u6309\u94ae\uff0c\u662f\u4f7f\u7528\u5b83\u7684 add \u65b9\u6cd5\uff0c\u5982\u4e0a\u4f8b\u4e2d\u7684 group.add(radio1);\u3002 <\/p>\n
\u3000\u3000\u65e2\u7136\u6211\u4eec\u5df2\u7ecf\u5c06\u591a\u4e2a\u5355\u9009\u6309\u94ae\u6dfb\u52a0\u5230\u4e00\u4e2a ButtonGroup \u4e2d\u4e86\uff0c\u90a3\u4e48\u6211\u4eec\u662f\u4e0d\u662f\u53ef\u4ee5\u5c06\u4e00\u4e2a\u5305\u542b\u591a\u4e2a\u5355\u9009\u6309\u94ae\u7684 ButtonGroup \u5bf9\u8c61\u6dfb\u52a0\u5230 JFrame \u7684 Content Pane \u4e2d\uff0c\u4ee5\u8fbe\u5230\u6dfb\u52a0\u5176\u4e2d\u6240\u6709\u5355\u9009\u6309\u94ae\u7684\u76ee\u7684\u5462\uff1f\u4e0d\u884c\uff01ButtonGroup \u4e0d\u662f\u4e00\u4e2a\u53ef\u663e\u793a\u7684\u7ec4\u4ef6\uff0c\u5b83\u4ec5\u7528\u4e8e\u7ba1\u7406\u3002\u6240\u4ee5\uff0c\u5728\u5f80 JFrame \u4e2d\u6dfb\u52a0\u4e00\u7ec4 JRadioButton \u7684\u65f6\u5019\uff0c\u9700\u8981\u4e00\u4e2a\u4e00\u4e2a\u7684\u6dfb\u52a0 JRadioButton\uff0c\u800c\u4e0d\u662f\u7b3c\u7edf\u7684\u6dfb\u52a0\u4e00\u4e2a ButtonGroup\u3002<\/p>\n
\u3000\u3000\u4e0a\u4f8b\u4e2d\u8fd8\u7528\u5230\u4e86 JLabel\uff0c\u8fd9\u4e0d\u662f\u6309\u94ae\uff0c\u800c\u662f\u4e00\u4e2a\u9759\u6001\u6587\u672c\u7ec4\u4ef6\uff0c\u4e3b\u8981\u7528\u4e8e\u663e\u793a\u63d0\u793a\u6587\u672c\u3002\u8981\u83b7\u5f97\u4e00\u4e2a JLabel \u5bf9\u8c61\u5f53\u524d\u663e\u793a\u7684\u6587\u672c\u5185\u5bb9\uff0c\u53ef\u4ee5\u4f7f\u7528\u5b83\u7684 getText() \u65b9\u6cd5\uff1b\u53cd\u4e4b\uff0c\u8981\u6539\u53d8\u4e00\u4e2a JLabel \u5bf9\u8c61\u663e\u793a\u7684\u6587\u672c\u5185\u5bb9\uff0c\u5e94\u8be5\u4f7f\u7528\u5b83\u7684 setText(String text) \u65b9\u6cd5\uff0c\u5982\u4e0a\u4f8b\u4e2d\u7684 label.setText(“You selected Toggle Button”);\u3002<\/p>\n
\u3000\u3000\u5176\u5b9e\u8fd9\u4e24\u4e2a\u65b9\u6cd5\u540c\u6837\u53ef\u4ee5\u7528\u4e8e JButton \u7b49\u7c7b\u3002\u6bd4\u5982\u4e0a\u4f8b\u4e2d\u6211\u4eec\u4f7f\u7528 new JButton(“JButton”) \u6784\u9020\u4e86\u4e00\u4e2a\u6309\u94ae jButton\uff0c\u5982\u679c\u4f7f\u7528 jButton.getText() \u5c31\u53ef\u4ee5\u5f97\u5230\u5b57\u7b26\u4e32 “JButton”\u3002\u800c jButton.setText(“A Button”)\uff0c\u5219\u53ef\u4ee5\u6539\u53d8\u6309\u94ae\u4e0a\u663e\u793a\u7684\u6587\u5b57\u4e3a “A Button”\u3002\u8fd9\u4e24\u53e5\u4ee3\u7801\u6ca1\u6709\u5199\u51fa\u6765\uff0c\u4f60\u53ef\u4ee5\u81ea\u5df1\u8bd5\u8bd5\u3002<\/p>\n
\u3000\u3000\u4e0a\u4f8b\u4e2d\u5927\u91cf\u4f7f\u7528\u4e86\u52a8\u4f5c\u76d1\u542c\u5668 (ActionListener)\u3002ActionListener \u53ea\u76d1\u542c\u4e00\u4e2a\u4e8b\u4ef6\uff0c\u8fd9\u4e2a\u4e8b\u4ef6\u5728\u5176\u76f8\u5173\u7ec4\u4ef6\u4e0a\u4ea7\u751f\u4e86\u52a8\u4f5c\u65f6\u88ab\u89e6\u53d1\uff0c\u56e0\u6b64\u53eb\u4f5c\u52a8\u4f5c\u4e8b\u4ef6 (ActionEvent)\u3002ActionListener \u53ea\u6709\u4e00\u4e2a\u65b9\u6cd5\u9700\u8981\u5b9e\u73b0\uff0c\u5c31\u662f actionPerformed(ActionEvent ae)\u3002\u6309\u94ae\u3001\u5207\u6362\u6309\u94ae\u548c\u5355\u9009\u6309\u94ae\u88ab\u5355\u51fb\u65f6\u90fd\u4f1a\u89e6\u53d1\u52a8\u4f5c\u4e8b\u4ef6\uff0c\u5f15\u8d77\u52a8\u4f5c\u76d1\u542c\u5668\u8c03\u7528 actionPerformed \u65b9\u6cd5\u3002\u56e0\u6b64\uff0c\u5982\u679c\u4f60\u60f3\u5728\u5355\u51fb\u6309\u94ae\u4e4b\u540e\u505a\u4ec0\u4e48\u4e8b\uff0c\u5f53\u7136\u5e94\u8be5\u91cd\u8f7d ActionListener \u7684 actionPerformed \u65b9\u6cd5\u4e86\u3002\u5404\u79cd\u6309\u94ae\u90fd\u63d0\u4f9b\u4e86 addActionListener \u65b9\u6cd5\u4ee5\u6dfb\u52a0\u52a8\u4f5c\u76d1\u542c\u5668\u3002<\/p>\n
\u3000\u3000\u590d\u9009\u6846\u5c31\u8981\u7279\u6b8a\u4e00\u4e9b\u3002\u867d\u7136\u5b83\u4e5f\u6709 addActionListener \u65b9\u6cd5\uff0c\u610f\u5473\u7740\u53ef\u4ee5\u4f7f\u7528\u52a8\u4f5c\u76d1\u542c\u5668\uff0c\u4f46\u662f\u4f7f\u7528\u4e4b\u540e\u4f60\u4f1a\u53d1\u73b0\u52a8\u4f5c\u76d1\u542c\u5668\u5e76\u6ca1\u6709\u8d77\u5230\u9884\u60f3\u7684\u4f5c\u7528\u3002\u4e3a\u4ec0\u4e48\uff1f\u539f\u6765\uff0c\u5355\u51fb\u4e00\u4e2a\u590d\u9009\u6309\u94ae\uff0c\u89e6\u53d1\u7684\u4e0d\u662f\u52a8\u4f5c\u4e8b\u4ef6\uff0c\u800c\u662f\u6761\u76ee\u4e8b\u4ef6 (ItemEvent) \u4e2d\u7684\u72b6\u6001\u53d8\u5316 (itemStateChanged) \u4e8b\u4ef6\uff0c\u7531\u6761\u76ee\u76d1\u542c\u5668 (ItemListener) \u76d1\u542c\uff0c\u76f8\u5e94\u9700\u8981\u91cd\u8f7d\u7684\u65b9\u6cd5\u662f ItemListener \u7684 itemStateChanged \u65b9\u6cd5\u3002<\/p>\n
\u3000\u3000\u4e0a\u4f8b\u4e2d\u6211\u4eec\u5c06\u4e00\u4e2a\u540d\u4e3a al \u7684 ActionListener \u6dfb\u52a0\u5230\u4e86\u6bcf\u4e00\u4e2a\u5355\u9009\u6309\u94ae\u4e2d\uff0c\u5982\u4f55\u5224\u65ad\u662f\u54ea\u4e2a\u5355\u9009\u6309\u94ae\u89e6\u53d1\u4e86\u4e8b\u4ef6\u5e76\u88ab al \u76d1\u542c\u5230\u4e86\u5462\uff1f\u6211\u4eec\u53ef\u4ee5\u4ece ActionEvent \u7684 getSource() \u65b9\u6cd5\u5f97\u5230\u89e6\u53d1\u4e8b\u4ef6\u5355\u9009\u6309\u94ae\u3002\u7531\u4e8e getSource() \u8fd4\u56de\u7684\u662f\u4e00\u4e2a Object \u5f15\u7528\uff0c\u867d\u7136\u8fd9\u4e2a\u5f15\u7528\u6307\u5411\u7684\u662f\u4e00\u4e2a\u5355\u9009\u6309\u94ae\u7684\u5b9e\u4f8b\uff0c\u4f46\u6211\u4eec\u8fd8\u662f\u9700\u8981\u5c06\u8fd9\u4e2a\u5f15\u7528\u7684\u7c7b\u578b\u8f6c\u6362\u4e3a JRadioButton\uff0c\u5982\u4e0a\u4f8b\u4e2d\u7684\uff1aJRadioButton radio = (JRadioButton) ae.getSource();\uff0c\u53ea\u6709\u8fd9\u6837\u6211\u4eec\u624d\u80fd\u8c03\u7528 JRadioButton \u6709\u800c Object \u6ca1\u6709\u7684\u65b9\u6cd5\u3002<\/p>\n
\u3000\u3000\u540c\u65f6\uff0c\u8fd8\u9700\u8981\u8bf4\u660e\u7684\u4e00\u70b9\u662f\uff0c\u6bcf\u4e2a\u5355\u9009\u6309\u94ae\u90fd\u53ef\u4ee5\u6dfb\u52a0\u4e00\u4e2a\u5355\u72ec\u7684 ActionListener \u5b9e\u4f8b\uff0c\u800c\u4e0d\u4e00\u5b9a\u8981\u6dfb\u52a0\u540c\u4e00\u4e2a\u3002\u540c\u6837\u7684\u9053\u7406\uff0c\u82e5\u5e72\u6beb\u4e0d\u76f8\u5e72\u7684\u3001\u9700\u8981\u6dfb\u52a0 ActionListener \u7684\u82e5\u5e72\u7ec4\u4ef6\uff0c\u4e5f\u53ef\u4ee5\u6dfb\u52a0\u540c\u4e00\u4e2a ActionListener \u5b9e\u4f8b\u3002\u5173\u952e\u5728\u4e8e\u7f16\u7a0b\u8005\u5bf9 actionPerformed \u65b9\u6cd5\u7684\u91cd\u8f7d\u3002\u6bd4\u5982\u4e0b\u9762\u8fd9\u6bb5\u4ee3\u7801\u5c31\u4e3a\u4e00\u4e2a JButton \u5bf9\u8c61\u548c\u4e00\u4e2a JRadioButton \u5bf9\u8c61\u6dfb\u52a0\u4e86\u540c\u4e00\u4e2a\u52a8\u4f5c\u76d1\u542c\u5668\u5b9e\u4f8b\uff1a
\/**
* Test.java
* @author Fancy
*\/
import javax.swing.*;
import java.awt.event.*;<\/p>\n
public class Test {<\/p>\n
\u3000JButton b;
\u3000JRadioButton rb;<\/p>\n
\u3000public Test() {
\u3000\u3000JFrame f = new JFrame(“Test”);
\u3000\u3000f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
\u3000\u3000f.getContentPane().setLayout(new java.awt.FlowLayout());
\u3000\u3000b = new JButton(“JButton”);
\u3000\u3000rb = new JRadioButton(“RadioButton”);
\u3000\u3000ActionListener a = new ActionListener() {
\u3000\u3000public void actionPerformed(ActionEvent ae) {
\u3000\u3000\u3000if (ae.getSource() == b) {
\u3000\u3000\u3000\u3000System.out.println(“You clicked the JButton”);
\u3000\u3000\u3000} else {
\u3000\u3000\u3000\u3000System.out.println(“You clicked the RadioButton”);
\u3000\u3000\u3000}
\u3000\u3000}
\u3000};<\/p>\n
\u3000b.addActionListener(a);
\u3000rb.addActionListener(a);
\u3000f.getContentPane().add(b);
\u3000f.getContentPane().add(rb);
\u3000f.pack();
\u3000f.show();
}<\/p>\n
\u3000public static void main(String[] args) {
\u3000\u3000new Test();
\u3000}
}
\u3000\u3000\u8fd0\u884c\u7a0b\u5e8f\u540e\uff0c\u5206\u522b\u5355\u51fb\u4e24\u4e2a\u6309\u94ae\uff0c\u76f8\u5e94\u7684\uff0c\u5728\u63a7\u5236\u53f0\u80fd\u5206\u522b\u5f97\u5230\u5982\u4e0b\u8f93\u51fa\uff1a
\u3000\u3000You clicked the JButton
\u3000\u3000You clicked the RadioButton
\u3000\u3000\u8fd9\u8bf4\u660e\u591a\u4e2a\u4e0d\u7528\u7684\u7ec4\u4ef6\u6dfb\u52a0\u540c\u4e00\u4e2a\u76d1\u542c\u5668\u662f\u53ef\u884c\u7684\u2014\u2014\u4e0d\u8fc7\u524d\u63d0\u662f\u8fd9\u4e9b\u7ec4\u4ef6\u90fd\u80fd\u6dfb\u52a0\u8fd9\u4e2a\u76d1\u542c\u5668\u3002<\/p>\n
\u3000\u56db. \u6587\u672c\u8f93\u5165\u6846\u3001\u5bc6\u7801\u8f93\u5165\u6846 <\/p>\n
\u3000\u3000\u6587\u672c\u8f93\u5165\u6846\u5305\u62ec\u4e24\u79cd\uff0c\u5355\u884c\u6587\u672c\u8f93\u5165\u6846 (JTextField) \u548c\u591a\u884c\u6587\u672c\u8f93\u5165\u6846 (JTextArea)\u3002\u5bc6\u7801\u8f93\u5165\u6846\u5219\u53ea\u6709\u4e00\u79cd (JPasswordField)\u3002JPasswordField \u662f JTextField \u7684\u5b50\u7c7b\uff0c\u5b83\u4eec\u7684\u4e3b\u8981\u533a\u522b\u662f JPasswordField \u4e0d\u4f1a\u663e\u793a\u51fa\u7528\u6237\u8f93\u5165\u7684\u4e1c\u897f\uff0c\u800c\u53ea\u4f1a\u663e\u793a\u51fa\u7a0b\u5e8f\u5458\u8bbe\u5b9a\u7684\u4e00\u4e2a\u56fa\u5b9a\u5b57\u7b26\uff0c\u6bd4\u5982 '*'\u3002
\u3000\u3000\u4e0b\u9762\u7684\u793a\u4f8b\u56fe\u548c\u4ee3\u7801\u662f JTextField\u3001JPasswordField \u548c JTextArea \u7684\u793a\u4f8b\uff1a
\/**
* TestTexts.java
\u3000* @author Fancy
\u3000*\/
\u3000import javax.swing.*;
\u3000import javax.swing.event.*;<\/p>\n
\u3000public class TestTexts extends JFrame {<\/p>\n
\u3000\u3000private JLabel label = new JLabel(“Status”);
\u3000\u3000private JTextField textField;
\u3000\u3000private JPasswordField pwdField;
\u3000\u3000private JTextArea textArea;<\/p>\n
\u3000\u3000public TestTexts() {
\u3000\u3000\u3000super(“Test Texts”);
\u3000\u3000\u3000setDefaultCloseOperation(EXIT_ON_CLOSE);
\u3000\u3000\u3000getContentPane().setLayout(new java.awt.FlowLayout());<\/p>\n
\u3000\u3000\u3000textField = new JTextField(15);
\u3000\u3000\u3000\/* \u76d1\u542c\u6587\u672c\u5149\u6807\u79fb\u52a8\u4e8b\u4ef6 *\/
\u3000\u3000\u3000textField.addCaretListener(new CaretListener() {
\u3000\u3000\u3000\u3000public void caretUpdate(CaretEvent e) {
\u3000\u3000\u3000\u3000\u3000\/\/ \u5982\u679c\u6539\u53d8\u4e86\u5185\u5bb9\uff0c\u5c31\u53ef\u4ee5\u5373\u65f6\u66f4\u65b0 label \u663e\u793a\u7684\u5185\u5bb9
\u3000\u3000\u3000\u3000\u3000label.setText(textField.getText());
\u3000\u3000\u3000\u3000}
\u3000\u3000\u3000});<\/p>\n
\u3000\u3000\u3000pwdField = new JPasswordField(15);
\u3000\u3000\u3000pwdField.setEchoChar('#');<\/p>\n
\u3000\u3000\u3000textArea = new JTextArea(5, 15);
\u3000\u3000\u3000textArea.setLineWrap(true);<\/p>\n
\u3000\u3000\u3000getContentPane().add(textField);
\u3000\u3000\u3000getContentPane().add(pwdField);
\u3000\u3000\u3000getContentPane().add(textArea);
\u3000\u3000\u3000getContentPane().add(label);<\/p>\n
\u3000\u3000\u3000setSize(200, 200);
\u3000\u3000}<\/p>\n
\u3000\u3000public static void main(String[] args) {
\u3000\u3000\u3000TestTexts tt = new TestTexts();
\u3000\u3000\u3000tt.show();
\u3000\u3000}
\u3000} <\/p>\n
\u3000\u3000\u4e0a\u4f8b\u4e2d\uff0c\u6211\u4eec\u6784\u9020\u4e86\u4e00\u4e2a\u5bbd\u5ea6\u4e3a 15 \u4e2a\u5b57\u7b26\u7684\u5355\u884c\u6587\u672c\u6846 (textField = new JTextField(15);)\uff0c\u5e76\u4f7f\u7528 addCaretListener \u65b9\u6cd5\u6dfb\u52a0\u4e86\u4e00\u4e2a CaretListener (textField.addCaretListener …)\u3002CaretListener \u76d1\u542c\u6587\u672c\u5149\u6807\u7684\u79fb\u52a8\u4e8b\u4ef6\u3002\u5f53\u7528\u6237\u4f7f\u7528\u952e\u76d8\u3001\u9f20\u6807\u7b49\u79fb\u52a8\u4e86\u6587\u672c\u5149\u6807\u5728 JTextField \u4e2d\u7684\u4f4d\u7f6e\u65f6\u89e6\u53d1\u8fd9\u4e2a\u4e8b\u4ef6\u3002\u6211\u4eec\u9700\u8981\u91cd\u8f7d caretUpdate(CaretEvent e) \u5bf9\u4e8b\u4ef6\u8fdb\u884c\u5904\u7406 (public void caretUpdate(CaretEvent e) …)\u3002\u8fd9\u6837\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u8fd9\u91cc\u505a\u7c7b\u4f3c VB \u4e2d TextBox \u7684 OnChange \u4e8b\u4ef6\u4e2d\u505a\u7684\u4e8b\u60c5\u3002
\u3000\u3000
JTextField \u6709 5 \u4e2a\u6784\u9020\u65b9\u6cd5\uff0c\u5e38\u7528\u5176\u4e2d\u7684\u56db\u4e2a\uff1a
\u3000
\u3000JTextField()
\u3000\u3000JTextField(int columns)\uff0c\u5982\u4e0a\u4f8b textField = new JTextField(15);
\u3000\u3000JTextField(String text)
\u3000\u3000JTextField(String text, int columns) <\/p>\n
\u3000\u3000\u5176\u4e2d\uff0c\u53c2\u6570 text \u662f\u5355\u884c\u6587\u672c\u6846\u7684\u521d\u59cb\u5185\u5bb9\uff0c\u800c columns \u6307\u5b9a\u4e86\u5355\u884c\u6587\u672c\u6846\u7684\u5bbd\u5ea6\uff0c\u4ee5\u5b57\u7b26\u4e3a\u5355\u4f4d\u3002JTextField \u4e2d\u7684\u6587\u672c\u5185\u5bb9\u53ef\u4ee5\u7528 getText() \u65b9\u6cd5\u83b7\u5f97\u3002\u4e5f\u53ef\u4ee5\u7528 setText \u65b9\u6cd5\u6307\u5b9a JTextField \u4e2d\u7684\u6587\u672c\u5185\u5bb9\u3002<\/p>\n
\u3000\u3000JPasswordField \u662f JTextField \u7684\u5b50\u7c7b\uff0c\u5176\u6784\u9020\u65b9\u6cd5\u4e5f\u662f\u7c7b\u4f3c\u7684\u3002JPasswordField \u63d0\u4f9b\u4e86 setEchoChar(char ch) \u65b9\u6cd5\u8bbe\u7f6e\u4e3a\u4e86\u9690\u85cf\u5bc6\u7801\u800c\u663e\u793a\u7684\u5b57\u7b26\uff0c\u9ed8\u8ba4\u4e3a '*' \u5b57\u7b26\uff0c\u4e0a\u4f8b\u4e2d\u5219\u8bbe\u7f6e\u4e3a\u4e86 '#' \u5b57\u7b26 (pwdField.setEchoChar('#');)\u3002\u4e0e JTextField \u4e00\u6837\uff0cJPasswordField \u4e5f\u7528 getText \u65b9\u6cd5\u548c setText \u83b7\u5f97\u6216\u8005\u8bbe\u7f6e\u6587\u672c\u5185\u5bb9 (\u5f53\u7136\u5728\u7528\u6237\u754c\u9762\u4e0a\u662f\u9690\u85cf\u7684)\u3002<\/p>\n
\u3000\u3000JTextField \u662f\u5355\u884c\u6587\u672c\u6846\uff0c\u4e0d\u80fd\u663e\u793a\u591a\u884c\u6587\u672c\uff0c\u5982\u679c\u60f3\u8981\u663e\u793a\u591a\u884c\u6587\u672c\uff0c\u5c31\u53ea\u597d\u4f7f\u7528\u591a\u884c\u6587\u672c\u6846 JTextArea \u4e86\u3002JTextArea \u6709\u516d\u4e2a\u6784\u9020\u65b9\u6cd5\uff0c\u5e38\u7528\u7684\u4e5f\u662f\u56db\u4e2a\uff1a<\/p>\n
\u3000\u3000JTextArea()
\u3000\u3000JTextArea(int rows, int columns)
\u3000\u3000JTextArea(String text)
\u3000\u3000JTextArea(String text, int rows, int columns)\u3000 <\/p>\n
\u3000\u3000text \u4e3a JTextArea \u7684\u521d\u59cb\u5316\u6587\u672c\u5185\u5bb9\uff1brows \u4e3a JTextArea \u7684\u9ad8\u5ea6\uff0c\u4ee5\u884c\u4e3a\u5355\u4f4d\uff1bcolumns \u4e3a JTextArea \u7684\u5bbd\u5ea6\uff0c\u4ee5\u5b57\u7b26\u4e3a\u5355\u4f4d\u3002\u5982\u4e0a\u4f8b\u4e2d\u5c31\u6784\u9020\u4e86\u4e00\u4e2a\u9ad8 5 \u884c\uff0c\u5bbd 15 \u4e2a\u5b57\u7b26\u7684\u591a\u884c\u6587\u672c\u6846 (textArea = new JTextArea(5, 15);)\u3002<\/p>\n
\u3000\u3000\u591a\u884c\u6587\u672c\u6846\u9ed8\u8ba4\u662f\u4e0d\u4f1a\u81ea\u52a8\u6298\u884c\u7684 (\u4e0d\u8fc7\u53ef\u4ee5\u8f93\u5165\u56de\u8f66\u7b26\u6362\u884c)\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 JTextArea \u7684 setLineWrap \u65b9\u6cd5\u8bbe\u7f6e\u662f\u5426\u5141\u8bb8\u81ea\u52a8\u6298\u884c\u3002setLineWrap(true) \u662f\u5141\u8bb8\u81ea\u52a8\u6298\u884c\uff0csetLineWrap(false) \u5219\u662f\u4e0d\u5141\u8bb8\u81ea\u52a8\u6298\u884c\u3002\u591a\u884c\u6587\u672c\u6846\u4f1a\u6839\u636e\u7528\u6237\u8f93\u5165\u7684\u5185\u5bb9\u81ea\u52a8\u6269\u5c55\u5927\u5c0f\uff0c\u4e0d\u4fe1\uff0c\u81ea\u5df1\u505a\u4e2a\u5b9e\u9a8c\u2014\u2014\u5982\u679c\u4e0d\u81ea\u52a8\u6298\u884c\uff0c\u90a3\u4e48\u591a\u884c\u6587\u672c\u6846\u7684\u5bbd\u5ea6\u7531\u6700\u957f\u7684\u4e00\u884c\u6587\u5b57\u786e\u5b9a\u7684\uff1b\u5982\u679c\u884c\u6570\u636e\u8d85\u8fc7\u4e86\u9884\u8bbe\u7684\u884c\u6570\uff0c\u5219\u591a\u884c\u6587\u672c\u6846\u4f1a\u6269\u5c55\u81ea\u8eab\u7684\u9ad8\u5ea6\u53bb\u9002\u5e94\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c\u591a\u884c\u6587\u672c\u6846\u4e0d\u4f1a\u81ea\u52a8\u4ea7\u751f\u6eda\u52a8\u6761\u3002\u600e\u4e48\u529e\uff1f\u540e\u9762\u8bb2\u5230\u6eda\u52a8\u7a97\u683c (JScrollPane) \u7684\u65f6\u5019\uff0c\u4f60\u5c31\u77e5\u9053\u4e86\u3002<\/p>\n
\u3000\u3000\u591a\u884c\u6587\u672c\u6846\u91cc\u6587\u672c\u5185\u5bb9\u7684\u83b7\u5f97\u548c\u8bbe\u7f6e\uff0c\u540c\u6837\u53ef\u4ee5\u4f7f\u7528 getText \u548c setText \u4e24\u4e2a\u65b9\u6cd5\u6765\u5b8c\u6210\u3002<\/p>\n
\u4e94. \u7a97\u683c\u3001\u6eda\u52a8\u7a97\u683c\u548c\u5e03\u5c40\u7ba1\u7406 <\/p>\n
\u3000\u3000\u7a97\u683c (JPanel) \u548c\u6eda\u52a8\u7a97\u683c (JScrollPane) \u5728\u56fe\u5f62\u7528\u6237\u754c\u9762\u8bbe\u8ba1\u4e2d\u5927\u91cf\u7528\u4e8e\u5404\u79cd\u7ec4\u4ef6\u5728\u7a97\u53e3\u4e0a\u7684\u5e03\u7f6e\u548c\u5b89\u6392\u3002\u8fd9\u91cc\u6240\u8c13\u7684\u5e03\u7f6e\u548c\u5b89\u6392\uff0c\u5c31\u662f\u5e03\u5c40 (Layout)\uff0c\u56e0\u6b64\u4e0d\u5f97\u4e0d\u5148\u8bf4\u8bf4\u5e03\u5c40\u3002<\/p>\n
\u3000\u3000\u5c06\u52a0\u5165\u5230\u5bb9\u5668(\u901a\u5e38\u4e3a\u7a97\u53e3\u7b49) \u7684\u7ec4\u4ef6\u6309\u7167\u4e00\u5b9a\u7684\u987a\u5e8f\u548c\u89c4\u5219\u653e\u7f6e\uff0c\u4f7f\u4e4b\u770b\u8d77\u6765\u66f4\u7f8e\u89c2\uff0c\u8fd9\u5c31\u662f\u5e03\u5c40\u3002\u5e03\u5c40\u7531\u5e03\u5c40\u7ba1\u7406\u5668 (Layout Manager) \u6765\u7ba1\u7406\u3002\u90a3\u4e48\uff0c\u6211\u4eec\u5728\u4ec0\u4e48\u65f6\u5019\u5e94\u8be5\u4f7f\u7528\u5e03\u5c40\u7ba1\u7406\u5668\uff1f\u5e94\u7528\u9009\u62e9\u54ea\u79cd\u5e03\u5c40\u7ba1\u7406\u5668\uff1f\u53c8\u8be5\u600e\u6837\u4f7f\u7528\u5e03\u5c40\u7ba1\u7406\u5668\u5462\uff1f<\/p>\n
\u3000\u3000\u5f80\u5f80\uff0c\u6211\u4eec\u8bbe\u8ba1\u4e00\u4e2a\u7a97\u53e3\uff0c\u5176\u4e2d\u662f\u8981\u6dfb\u52a0\u82e5\u5e72\u7ec4\u4ef6\u7684\u3002\u4e3a\u4e86\u7ba1\u7406\u597d\u8fd9\u4e9b\u7ba1\u7406\u7684\u5e03\u5c40\uff0c\u6211\u4eec\u5c31\u8981\u4f7f\u7528\u5e03\u5c40\u7ba1\u7406\u5668\u3002\u6bd4\u5982\u8bf4\uff0c\u8bbe\u8ba1\u4e00\u4e2a\u7b80\u5355\u7684\u7f16\u8f91\u5668\uff0c\u8fd9\u4e2a\u7f16\u8f91\u5668\u4e2d\u53ea\u9700\u8981\u653e\u7f6e\u4e24\u4e2a\u6309\u94ae\u548c\u4e00\u4e2a\u591a\u884c\u6587\u672c\u6846\u3002\u8fd9\u4e9b\u7ec4\u4ef6\u662f\u8ba9 Java \u81ea\u5df1\u4efb\u610f\u5b89\u6392\u5462\uff1f\u8fd8\u662f\u6309\u7167\u4e00\u5b9a\u7684\u4f4d\u7f6e\u5173\u7cfb\u8f83\u89c4\u8303\u7684\u5b89\u6392\u5462\uff1f\u5f53\u7136\u5e94\u8be5\u9009\u62e9\u540e\u8005\u3002\u90a3\u4e48\uff0c\u4e3a\u4e86\u6309\u7167\u4e00\u5b9a\u7684\u4f4d\u7f6e\u5173\u7cfb\u5b89\u6392\u8fd9\u4e9b\u7ec4\u4ef6\uff0c\u6211\u4eec\u5c31\u9700\u8981\u7528\u5230\u5e03\u5c40\u7ba1\u7406\u5668\u4e86\u3002<\/p>\n
\u3000\u3000\u7136\u540e\u6211\u4eec\u9047\u5230\u4e86\u4e00\u4e2a\u9009\u62e9\u9898\u2014\u2014\u4f7f\u7528\u54ea\u79cd\u5e03\u5c40\u7ba1\u7406\u5668\u3002\u4e3a\u6b64\uff0c\u6211\u4eec\u9996\u5148\u8981\u77e5\u9053\u6709\u4e9b\u4ec0\u4e48\u5e03\u5c40\u7ba1\u7406\u5668\uff0c\u5b83\u4eec\u7684\u5e03\u5c40\u7279\u70b9\u662f\u4ec0\u4e48\u3002\u5e38\u7528\u7684\u5e03\u5c40\u7ba1\u7406\u5668\u6709\uff1a FlowLayout\u3001BorderLayout\u3001GridLayout\u3001BoxLayout \u7b49\uff0c\u5176\u4e2d FlowLayout \u548c BorderLayout \u6700\u5e38\u7528\uff0c\u672c\u6587\u4e3b\u8981\u4e5f\u5c31\u53ea\u8c08\u8c08\u8fd9\u4e24\u79cd\u5e03\u5c40\u7ba1\u7406\u5668\u3002\u4e0b\u9762\u5217\u8868\u8bf4\u660e\u5b83\u4eec\u7684\u5e03\u5c40\u7279\u70b9\uff1a<\/p>\n
\u5e03\u5c40\u7ba1\u7406\u5668 \u5e03\u5c40\u7279\u70b9 <\/p>\n
FlowLayout \u5c06\u7ec4\u4ef6\u6309\u4ece\u5de6\u5230\u53f3\u4ece\u4e0a\u5230\u4e0b\u7684\u987a\u5e8f\u4f9d\u6b21\u6392\u5217\uff0c\u4e00\u884c\u4e0d\u80fd\u653e\u5b8c\u5219\u6298\u5230\u4e0b\u4e00\u884c\u7ee7\u7eed\u653e\u7f6e
BorderLayout \u5c06\u7ec4\u4ef6\u6309\u4e1c\u3001\u5357\u3001\u897f\u3001\u5317\u3001\u4e2d\u4e94\u4e2a\u533a\u57df\u653e\u7f6e\uff0c\u6bcf\u4e2a\u65b9\u5411\u6700\u591a\u53ea\u80fd\u653e\u7f6e\u4e00\u4e2a\u7ec4\u4ef6
GridLayout \u5f62\u4f3c\u4e00\u4e2a\u65e0\u6846\u7ebf\u7684\u8868\u683c\uff0c\u6bcf\u4e2a\u5355\u5143\u683c\u4e2d\u653e\u4e00\u4e2a\u7ec4\u4ef6
BoxLayout \u5c31\u50cf\u6574\u9f50\u653e\u7f6e\u7684\u4e00\u884c\u6216\u8005\u4e00\u5217\u76d2\u5b50\uff0c\u6bcf\u4e2a\u76d2\u5b50\u4e2d\u4e00\u4e2a\u7ec4\u4ef6 <\/p>\n
\u3000\u3000\u5c31\u4e0a\u8ff0\u7684\u7f16\u8f91\u5668\u4e3a\u4f8b\uff0c\u5982\u679c\u9009\u7528 FlowLayout\uff0c\u90a3\u4e48\u4e24\u4e2a\u6309\u94ae\u548c\u4e00\u4e2a\u591a\u884c\u6587\u672c\u6846\u5c31\u4f1a\u6392\u5217\u5728\u4e00\u884c\u2014\u2014\u5f53\u7136\u8fd9\u662f\u7a97\u53e3\u8db3\u591f\u5bbd\u7684\u60c5\u51b5\uff1b\u5982\u679c\u7a97\u53e3\u7a0d\u7a84\u4e00\u4e9b\uff0c\u5219\u53ef\u80fd\u5206\u4e24\u884c\u6392\u5217\uff0c\u7b2c\u4e00\u884c\u6709\u4e24\u4e2a\u6309\u94ae\uff0c\u800c\u7b2c\u4e8c\u884c\u662f\u591a\u884c\u6587\u672c\u6846\u2014\u2014\u8fd9\u662f\u6700\u7406\u60f3\u7684\u60c5\u51b5\uff1b\u5982\u679c\u7a97\u53e3\u518d\u7a84\u4e00\u4e9b\uff0c\u5c31\u53ef\u80fd\u5206\u4e09\u884c\u6392\u5217\uff0c\u7b2c\u4e00\u884c\u548c\u7b2c\u4e8c\u884c\u5206\u522b\u653e\u7f6e\u4e00\u4e2a\u6309\u94ae\uff0c\u7b2c\u4e09\u884c\u653e\u7f6e\u591a\u884c\u6587\u672c\u6846\u3002\u56e0\u6b64\uff0c\u5982\u679c\u7a97\u53e3\u5927\u5c0f\u53ef\u4ee5\u6539\u53d8\uff0c\u90a3\u4e48\u4e09\u4e2a\u7ec4\u4ef6\u7684\u4f4d\u7f6e\u5173\u7cfb\u4e5f\u53ef\u80fd\u968f\u7740\u7a97\u53e3\u5927\u5c0f\u7684\u53d8\u5316\u800c\u53d8\u5316\u3002\u6240\u4ee5\uff0cFlowLayout \u4e0d\u9002\u7528\u3002\u5176\u5b9e\u4e0a\u9762\u6240\u4e3e\u7684\u4f8b\u7a0b\u4e2d\uff0c\u5927\u90e8\u5206\u90fd\u662f\u7528\u7684 FlowLayout\uff0c\u90a3\u662f\u56e0\u4e3a\u6211\u4eec\u6ca1\u6709\u8981\u6c42\u7ec4\u4ef6\u7684\u5e03\u5c40\u3002<\/p>\n
\u3000\u3000\u5982\u679c\u9009\u7528 BorderLayout \u7684\u60c5\u51b5\u53c8\u5982\u4f55\u5462\uff1f\u6211\u4eec\u53ef\u4ee5\u8bd5\u7740\u52a0\u5165\u4e00\u4e2a\u7a97\u683c (JPanel\uff0c\u7a0d\u540e\u8bb2\u89e3)\uff0c\u5e76\u5c06\u4e24\u4e2a\u6309\u94ae\u653e\u7f6e\u5728\u5176\u4e2d\uff0c\u7136\u540e\u5c06\u8fd9\u4e2a\u7a97\u683c\u52a0\u5165\u5230 BorderLayout \u7684\u5317\u90e8 (\u5373\u4e0a\u90e8)\uff1b\u518d\u5c06\u591a\u884c\u6587\u672c\u6846\u52a0\u5165\u5230 BorderLayout \u4e2d\u90e8\u3002\u7ed3\u679c\u7c7b\u4f3c\u4f7f\u7528 FlowLayout \u7684\u7b2c\u4e8c\u79cd\u53ef\u80fd\uff0c\u662f\u6700\u7406\u60f3\u7684\u60c5\u51b5\u3002\u800c\u4e14\uff0c\u5982\u679c\u6539\u53d8\u7a97\u53e3\u5927\u5c0f\uff0c\u5b83\u4eec\u7684\u4f4d\u7f6e\u5173\u7cfb\u4ecd\u7136\u662f\u5317-\u4e2d\u7684\u5173\u7cfb\uff0c\u4e0d\u4f1a\u968f\u4e4b\u6539\u53d8\u3002<\/p>\n
\u3000\u3000\u5269\u4e0b\u7684\u4e24\u79cd\u5e03\u5c40\u7ba1\u7406\u5668\uff0c\u52a0\u4ee5\u7a97\u683c (JPanel) \u7684\u914d\u5408\uff0c\u4e5f\u80fd\u591f\u5f88\u597d\u7684\u5b89\u6392\u4e0a\u8ff0\u7f16\u8f91\u5668\u6240\u9700\u7684\u4e09\u4e2a\u7ec4\u4ef6\u3002\u4f46\u662f\u7531\u4e8e\u5b83\u4eec\u7684\u4f7f\u7528\u7a0d\u4e3a\u590d\u6742\u4e00\u4e9b\uff0c\u6240\u4ee5\u5c31\u4e0d\u8bb2\u4e86\u3002\u4e0b\u9762\u5c31\u8bb2\u8bb2\u5982\u4f55\u4f7f\u7528 FlowLayout \u548c BorderLayout\u3002<\/p>\n
\u3000\u3000\u4efb\u4f55\u5e03\u5c40\u7ba1\u7406\u5668\uff0c\u90fd\u9700\u8981\u7528\u5728\u5bb9\u5668\u4e0a\uff0c\u6bd4\u5982 JFrame \u7684 Content Pane \u548c\u4e0b\u9762\u8981\u8bf4\u7684 JPanel \u90fd\u662f\u5bb9\u5668\u3002\u5bb9\u5668\u7ec4\u4ef6\u63d0\u4f9b\u4e86\u4e00\u4e2a setLayout \u65b9\u6cd5\uff0c\u5c31\u662f\u7528\u6765\u6539\u53d8\u5176\u5e03\u5c40\u7ba1\u7406\u5668\u7684\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cJFrame \u7684 Content Pane \u4f7f\u7528\u7684\u662f BorderLayout\uff0c\u800c JPanel \u4f7f\u7528\u7684\u662f FlowLayout\u3002\u4f46\u4e0d\u7ba1\u600e\u6837\uff0c\u6211\u4eec\u90fd\u53ef\u4ee5\u8c03\u7528\u5b83\u4eec\u7684 setLayout \u65b9\u6cd5\u6765\u6539\u53d8\u5176\u5e03\u5c40\u7ba1\u7406\u5668\u3002\u6bd4\u5982\u4e0a\u8ff0\u7684\u7f16\u8f91\u5668\u4e2d\uff0c\u6211\u4eec\u8981\u8ba9\u7a97\u53e3 (JFrame \u5bf9\u8c61\uff0c\u5047\u8bbe\u4e3a frame) \u4f7f\u7528 BorderLayout\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528 frame.getContentPane().setLayout(new BorderLayout()); \u6765\u6539\u53d8\u5176\u5e03\u5c40\u7ba1\u7406\u5668\u4e3a\u4e00\u4e2a\u65b0\u7684 BorderLayout \u5bf9\u8c61\u3002<\/p>\n
\u3000\u3000\u7136\u540e\uff0c\u6211\u4eec\u5bf9\u5e03\u5c40\u7ba1\u7406\u5668\u7684\u76f4\u63a5\u64cd\u4f5c\u5c31\u7ed3\u675f\u4e86\uff0c\u5269\u4e0b\u7684\u53ea\u9700\u8981\u5f80\u5bb9\u5668\u91cc\u6dfb\u52a0\u7ec4\u4ef6\u3002\u5982\u679c\u4f7f\u7528 FlowLayout\uff0c\u6211\u4eec\u53ea\u9700\u8981\u4f7f\u7528\u5bb9\u5668\u7684 add(Component c) \u65b9\u6cd5\u6dfb\u52a0\u7ec4\u4ef6\u5c31\u884c\u4e86\u3002\u4f46\u662f\uff0c\u5982\u679c\u4f7f\u7528 BorderLayout \u5c31\u4e0d\u4e00\u6837\u4e86\uff0c\u56e0\u4e3a\u8981\u6307\u5b9a\u662f\u628a\u7ec4\u4ef6\u6dfb\u52a0\u5230\u54ea\u4e2a\u533a\u57df\u554a\u3002\u90a3\u6211\u4eec\u5c31\u4f7f\u7528\u5bb9\u5668\u7684 add(Component c, Object o) \u65b9\u6cd5\u6dfb\u52a0\u7ec4\u4ef6\uff0c\u8be5\u65b9\u6cd5\u7684\u7b2c\u4e8c\u4e2a\u53c2\u6570\u5c31\u662f\u6307\u660e\u6dfb\u52a0\u5230\u7684\u533a\u57df\u7528\u7684\u3002\u4f8b\u5982\uff0c\u4e0a\u8ff0\u7f16\u8f91\u5668\u4e2d\u8981\u6dfb\u52a0\u4e00\u4e2a\u591a\u884c\u6587\u672c\u6846\u5230 BorderLayout \u7684\u4e2d\u90e8\uff0c\u5c31\u53ef\u4ee5\u7528 frame.getContentPane().add(new JTextArea(5, 15), BorderLayout.CENTER) \u6765\u5b9e\u73b0\u3002 <\/p>\n
\u3000\u3000BorderLayout \u7684\u4e94\u4e2a\u533a\u57df\u5206\u522b\u662f\u7528\u4e0b\u5217\u4e94\u4e2a\u5e38\u91cf\u6765\u63cf\u8ff0\u7684\uff1a<\/p>\n
\u3000\u3000BorderLayout.EAST \u4e1c
\u3000\u3000BorderLayout.SOUTH \u5357
\u3000\u3000BorderLayout.WEST \u897f
\u3000\u3000BorderLayout.NORTH \u5317
\u3000\u3000BorderLayout.CENTER \u4e2d <\/p>\n
\u3000\u3000\u521a\u624d\u5df2\u7ecf\u63d0\u5230\u4e86\u4f7f\u7528 JPanel\u3002JPanel \u4f5c\u4e3a\u4e00\u4e2a\u5bb9\u5668\uff0c\u53ef\u4ee5\u5305\u5bb9\u4e00\u4e9b\u7ec4\u4ef6\uff0c\u7136\u540e\u5c06\u8fd9\u4e2a JPanel \u5bf9\u8c61\u4f5c\u4e3a\u4e00\u4e2a\u7ec4\u4ef6\u6dfb\u52a0\u5230\u53e6\u4e00\u4e2a\u5bb9\u5668 (\u79f0\u4f5c\u7236\u5bb9\u5668) \u4e2d\u3002\u8fd9\u4e2a\u529f\u80fd\u6709\u4ec0\u4e48\u597d\u5904\u5462\uff1f<\/p>\n
\u3000\u3000\u4e0a\u9762\u4e0d\u662f\u63d0\u5230 BorderLayout \u7684\u4e00\u4e2a\u533a\u57df\u4e2d\u53ea\u80fd\u6dfb\u52a0\u4e00\u4e2a\u7ec4\u4ef6\u5417\uff1f\u4f46\u662f\u6211\u4eec\u7684\u7f16\u8f91\u5668\u9700\u8981\u6dfb\u52a0\u4e24\u4e2a\u6309\u94ae\u5230\u5b83\u7684\u5317\u90e8\uff0c\u600e\u4e48\u529e\uff1f\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u5c31\u662f\u7528\u7684\u4e00\u4e2a JPanel \u5305\u5bb9\u4e86\u8fd9\u4e24\u4e2a\u6309\u94ae\uff0c\u7136\u540e\u518d\u5c06\u8fd9\u4e2a JPanel \u5bf9\u8c61\u4f5c\u4e3a\u4e00\u4e2a\u7ec4\u4ef6\u6dfb\u52a0\u5230\u8bbe\u7f6e\u5e03\u5c40\u7ba1\u7406\u5668\u4e3a BorderLayout \u7684 Content Pane \u4e2d\u3002<\/p>\n
\u3000\u3000\u4e0a\u9762\u8bf4\u5230\u5404\u5e03\u5c40\u7ba1\u7406\u5668\u7684\u5e03\u5c40\u7279\u70b9\u7684\u65f6\u5019\uff0c\u51e0\u4e4e\u6bcf\u4e00\u79cd\u90fd\u662f\u4e00\u4e2a\u533a\u57df\u53ea\u80fd\u6dfb\u52a0\u4e00\u4e2a\u7ec4\u4ef6\uff0c\u90a3\u6211\u4eec\u60f3\u6dfb\u52a0\u591a\u4e2a\u7ec4\u4ef6\u5230\u4e00\u4e2a\u533a\u57df\u7684\u65f6\u5019\uff0c\u5c31\u8981\u7528\u5230 JPanel \u4e86\u3002\u5982\u679c\u8fd8\u6ca1\u6709\u660e\u767d\uff0c\u7a0d\u540e\u770b\u4e00\u6bb5\u7a0b\u5e8f\u53ef\u80fd\u66f4\u6613\u4e8e\u7406\u89e3\u3002<\/p>\n
\u3000\u3000\u800c\u6eda\u52a8\u7a97\u683c (JScrollPane) \u5462\uff1f\u5b83\u662f\u4e00\u4e2a\u80fd\u591f\u81ea\u5df1\u4ea7\u751f\u6eda\u52a8\u6761\u7684\u5bb9\u5668\uff0c\u901a\u5e38\u53ea\u5305\u5bb9\u4e00\u4e2a\u7ec4\u4ef6\uff0c\u5e76\u4e14\u6839\u636e\u8fd9\u4e2a\u7ec4\u4ef6\u7684\u5927\u5c0f\u81ea\u52a8\u4ea7\u751f\u6eda\u52a8\u6761\u3002\u6bd4\u5982\u4e0a\u9762\u8bb2 JTextArea \u7684\u65f6\u5019\u63d0\u5230\uff1aJTextAera \u4f1a\u968f\u7528\u6237\u8f93\u5165\u7684\u5185\u5bb9\u81ea\u52a8\u6269\u5c55\u5927\u5c0f\uff0c\u5f88\u5bb9\u6613\u6253\u7834\u5404\u7ec4\u4ef6\u7684\u5e03\u5c40\u3002\u4f46\u662f\uff0c\u5982\u679c\u6211\u4eec\u5c06\u5b83\u5305\u5bb9\u5728\u4e00\u4e2a\u6eda\u52a8\u7a97\u683c\u4e2d\uff0c\u5b83\u7684\u6269\u5c55\u5c31\u4e0d\u4f1a\u76f4\u63a5\u53cd\u6620\u5728\u5927\u5c0f\u7684\u53d8\u5316\u4e0a\uff0c\u800c\u4f1a\u53cd\u6620\u5728\u6eda\u52a8\u7a97\u683c\u7684\u6eda\u52a8\u6761\u4e0a\uff0c\u4e5f\u5c31\u4e0d\u4f1a\u6253\u7834\u5404\u7ec4\u4ef6\u7684\u5e03\u5c40\u4e86\u3002\u7a0d\u540e\u7684\u4f8b\u5b50\u4f1a\u8ba9\u4f60\u6e05\u6e05\u695a\u695a\u3002<\/p>\n
\u3000\u3000\u662f\u4e0d\u662f\u7b49\u7740\u770b\u4f8b\u5b50\u4e86\uff1f\u597d\uff0c\u4f8b\u5b50\u6765\u4e86\uff1a
\/**
* TestPanels.java
* @author Fancy *\/
import javax.swing.*;
import java.awt.*;
public class TestPanels extends JFrame {
\u3000public TestPanels() {
\u3000\u3000setDefaultCloseOperation(EXIT_ON_CLOSE);
\u3000\u3000JPanel panel = new JPanel();
\u3000\u3000for (int i = 0; i < 2; i++) {
\u3000\u3000\u3000panel.add(new JButton(“Button 00” + i));
\u3000\u3000}
\u3000\u3000
\u3000\u3000JTextArea textArea = new JTextArea(5, 15);
\u3000\u3000textArea.setLineWrap(true);
\u3000\u3000JScrollPane scrollPane = new JScrollPane(textArea);
\u3000\u3000getContentPane().add(panel, BorderLayout.NORTH);
\u3000\u3000getContentPane().add(scrollPane, BorderLayout.CENTER);
\u3000\u3000pack();
\u3000\u3000
\u3000}<\/p>\n
\u3000public static void main(String[] args) { <\/p>\n
\u3000\u3000TestPanels tp = new TestPanels();
\u3000\u3000tp.show();
\u3000}
}
\u3000\u3000\u8fd9\u4e2a\u4f8b\u5b50\u7684\u8fd0\u884c\u7ed3\u679c\u5982\u4e0b\u56fe\uff0c\u6b63\u662f\u6211\u4eec\u60f3\u8981\u7684\u7ed3\u679c\u2014\u2014\u4e0a\u9762\u4e24\u4e2a\u6309\u94ae\uff0c\u4e0b\u9762\u662f\u4e00\u4e2a\u53ef\u4ee5\u6eda\u52a8\u7684\u591a\u884c\u6587\u672c\u6846\uff1a<\/p>\n
\u3000\u3000\u4e0a\u4f8b\u4e2d\u9996\u5148\u4ea7\u751f\u4e86\u4e00\u4e2a JPanel \u5bf9\u8c61 (JPanel panel = new JPanel();)\uff0c\u7136\u540e\u5c06\u4e24\u4e2a\u6309\u94ae\u7f6e\u4e8e\u5176\u4e2d (panel.add …)\uff1b\u7136\u540e\u4ea7\u751f\u4e86\u4e00\u4e2a\u591a\u884c\u6587\u672c\u6846 (JTextArea textArea = new JTextArea(5, 15);)\uff0c\u5e76\u4f7f\u7528\u4e00\u4e2a\u6eda\u52a8\u7a97\u683c\u5c06\u5b83\u5305\u88f9\u8d77\u6765 (JScrollPane scrollPane = new JScrollPane(textArea);)\uff0c\u4f7f\u4e4b\u6210\u4e3a\u53ef\u4ee5\u6eda\u52a8\u7684\u591a\u884c\u6587\u672c\u6846\u3002\u6700\u540e\u5c06\u4e24\u4e2a\u5bb9\u5668 (JPanel \u5bf9\u8c61\u548c JScrollPane \u5bf9\u8c61) \u5206\u522b\u6dfb\u52a0\u5230\u4e86\u7a97\u53e3\u7684\u5317\u90e8 (getContentPane().add(panel, BorderLayout.NORTH);) \u548c\u4e2d\u90e8 (\u4e5f\u5c31\u662f\u5269\u4f59\u90e8\u5206\uff0cgetContentPane().add(scrollPane, BorderLayout.CENTER);)\u3002<\/p>\n
\u3000\u3000\u597d\u50cf\u6709\u70b9\u4e0d\u5bf9\u52b2\uff0c\u662f\u4ec0\u4e48\u5462\uff1f\u5bf9\u4e86\uff0c\u6211\u4eec\u6ca1\u6709\u8bbe\u7f6e Content Pane \u7684\u5e03\u5c40\u7ba1\u7406\u5668\u4e3a BorderLayout \u554a\uff0c\u4e3a\u4ec0\u4e48……\u521a\u624d\u4e0d\u662f\u8bf4\u4e86\u5417\uff0cJFrame \u7684 Content Pane \u7684\u9ed8\u8ba4\u5e03\u5c40\u7ba1\u7406\u5668\u5c31\u662f BorderLayout\uff0c\u6240\u4ee5\u4e0d\u7528\u518d\u8bbe\u7f6e\u4e86\u3002 <\/p>\n","protected":false},"excerpt":{"rendered":"
[\u8f6c\u5e16]Java\u56fe\u5f62\u7528\u6237\u754c\u9762\u8bbe\u8ba1\u4e00. AWT \u548c SWING \u3000\u3000AWT \u548c SWING \u662f Java \u8bbe\u8ba1 GUI \u7528\u6237\u754c\u9762\u7684\u57fa\u7840\u3002\u4e0e AWT \u7684\u91cd\u91cf\u7ea7\u7ec4\u4ef6\u4e0d\u540c\uff0cSwing \u4e2d\u5927\u90e8\u5206\u662f\u8f7b\u91cf\u7ea7\u7ec4\u4ef6\u3002\u6b63…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[12],"class_list":["post-89","post","type-post","status-publish","format-standard","hentry","category-6","tag-java"],"_links":{"self":[{"href":"https:\/\/huangjingjing.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/89","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/huangjingjing.com\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/huangjingjing.com\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/huangjingjing.com\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/huangjingjing.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=89"}],"version-history":[{"count":0,"href":"https:\/\/huangjingjing.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/89\/revisions"}],"wp:attachment":[{"href":"https:\/\/huangjingjing.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=89"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/huangjingjing.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=89"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/huangjingjing.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=89"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}