小编don*_*yer的帖子

我在netbeans中创建文本编辑器,并在编辑菜单中添加了名为Copy,Cut&Paste的jMenuItems.

如何在actionPerformed()后启用这些按钮来执行这些功能

这是我的尝试:

    private void CopyActionPerformed(java.awt.event.ActionEvent evt) {                                     

       JMenuItem Copy = new JMenuItem(new DefaultEditorKit.CopyAction()); 
    }                                    

    private void PasteActionPerformed(java.awt.event.ActionEvent evt) {                                      
     JMenuItem Paste = new JMenuItem(new DefaultEditorKit.PasteAction()); 
    }                                     

    private void CutActionPerformed(java.awt.event.ActionEvent evt) {                                    
       JMenuItem Cut = new JMenuItem(new DefaultEditorKit.CutAction()); 
    }