Java

cat · 发表于 2009-1-7 10:26:01

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　　用swing写了一个GUI，在关闭窗口时，使得窗口在某一条件下，不关闭，即取消关闭窗口的动作。　　 /* * mFrame2.java * * Created on 2005年7月4日, 下午1:12 */ package DialogExample; /** * * @author Administrator */ public class mFrame2 extends javax.swing.JFrame { /** Creates new form mFrame2 */ public mFrame2() { initComponents(); } /** This method is called from within the constructor to * initialize the form. * WARNING: Do NOT modify this code. The content of this method is * always regenerated by the Form Editor. */ private void initComponents() { buttonGroup1 = new javax.swing.ButtonGroup(); buttonGroup2 = new javax.swing.ButtonGroup(); buttonGroup3 = new javax.swing.ButtonGroup(); jPanel1 = new javax.swing.JPanel(); jTextField1 = new javax.swing.JTextField(); jButton1 = new javax.swing.JButton(); setDefaultCloseOperation(javax.swing.WindowConstants.DO_NOTHING_ON_CLOSE); addWindowListener(new java.awt.event.WindowAdapter() { public void windowClosing(java.awt.event.WindowEvent evt) { exitForm(evt); } }); jPanel1.setBorder(new javax.swing.border.TitledBorder("Tilte Broder")); jTextField1.setText("jTextField1"); jPanel1.add(jTextField1); jButton1.setText("jButton1"); jPanel1.add(jButton1); getContentPane().add(jPanel1, java.awt.BorderLayout.NORTH); pack(); } /** Exit the Application */ private void exitForm(java.awt.event.WindowEvent evt) { if(true) { System.out.println("hello exiting"); // return; } //System.exit(0); } /** * @param args the command line arguments */ public static void main(String args[]) { new mFrame2().show(); } // Variables declaration - do not modify private javax.swing.ButtonGroup buttonGroup1; private javax.swing.ButtonGroup buttonGroup2; private javax.swing.ButtonGroup buttonGroup3; private javax.swing.JButton jButton1; private javax.swing.JPanel jPanel1; private javax.swing.JTextField jTextField1; // End of variables declaration } 关键的代码是 setDefaultCloseOperation(javax.swing.WindowConstants.DO_NOTHING_ON_CLOSE); private void exitForm(java.awt.event.WindowEvent evt) { if(true) { System.out.println("hello exiting"); // return; } //System.exit(0); } 此程序单击“×”之后什么也不做，只是在console中输出"hello exiting"

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