从另一个类处理JFrame

如何从另一个类中处理JFrame？ 我的代码如下所示。 我使用Netbeans生成窗体生成窗口。 我想使用另一个类（name is needDispose）进行处理。

public class needDispose { /** *Call for dispose frame */ public static void disposeMyFrame(){ myEasyFrame.getMainFrame.dispose(); // DOESNT WORK } } 

NETBEANS GENERATE （重要的方法是getMainFrame（））

 import javax.swing.JFrame; public class myEasyFrame extends javax.swing.JFrame { /* * Get frame */ public final JFrame getMainFrame() { return this; } /** * Creates new form myEasyFrame */ public myEasyFrame() { 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. */ @SuppressWarnings("unchecked") //  private void initComponents() { jButton1 = new javax.swing.JButton(); setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); jButton1.setText("CLICK"); jButton1.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton1ActionPerformed(evt); } }); javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane()); getContentPane().setLayout(layout); layout.setHorizontalGroup( layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addContainerGap() .addComponent(jButton1) .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)) ); layout.setVerticalGroup( layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addContainerGap() .addComponent(jButton1) .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)) ); pack(); }//  private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) { needDispose.disposeMyFrame(); } /** * @param args the command line arguments */ public static void main(String args[]) { /* Set the Nimbus look and feel */ // /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel. * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html */ try { for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) { if ("Nimbus".equals(info.getName())) { javax.swing.UIManager.setLookAndFeel(info.getClassName()); break; } } } catch (ClassNotFoundException ex) { java.util.logging.Logger.getLogger(myEasyFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (InstantiationException ex) { java.util.logging.Logger.getLogger(myEasyFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (IllegalAccessException ex) { java.util.logging.Logger.getLogger(myEasyFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (javax.swing.UnsupportedLookAndFeelException ex) { java.util.logging.Logger.getLogger(myEasyFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } // /* Create and display the form */ java.awt.EventQueue.invokeLater(new Runnable() { public void run() { new myEasyFrame().setVisible(true); } }); } // Variables declaration - do not modify private javax.swing.JButton jButton1; // End of variables declaration } 

Answer 1

下面是一个如何从另一个本身是JFrame的类中处理JFrame的示例：

 import java.awt.GridBagLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.SwingUtilities; public class Demo { public static void main(String[] args) { SwingUtilities.invokeLater(new Runnable() { @Override public void run() { FrameA one = new FrameA(); FrameB two = new FrameB(one); one.setVisible(true); two.setVisible(true); } }); } } class FrameA extends JFrame { private static final long serialVersionUID = 1812279930292019387L; public FrameA() { super("Frame A"); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setSize(400, 400); setLocationRelativeTo(null); setResizable(false); } } class FrameB extends JFrame { private static final long serialVersionUID = 5126089271972476434L; public FrameB(final JFrame otherFrame) { super("Frame B"); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setSize(400, 400); setLayout(new GridBagLayout()); setLocationRelativeTo(otherFrame); JButton button = new JButton("Dispose Other"); button.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { otherFrame.dispose(); } }); add(button); setResizable(false); } }