10例子10.txt

这是一本java基础教程 对新手上路有很大帮助

import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
public class Example10_10{
    public static void main(String args[]){
        EditWindow win=new EditWindow("窗口");
    }
}
class EditWindow extends JFrame implements ActionListener{
    JMenuBar menubar;
    JMenu menu;
    JSplitPane splitPane;
    JMenuItem itemCopy,itemCut,itemPaste; 
    JTextArea text1,text2;
    EditWindow(String s){
       setTitle(s);    
       setSize(260,270);
       setLocation(120,120);
       setVisible(true);               
       menubar=new JMenuBar(); 
       menu=new JMenu("编辑");   
       itemCopy=new JMenuItem("复制");
       itemCut=new JMenuItem("剪切");
       itemPaste=new JMenuItem("粘贴");
       menu.add(itemCopy);
       menu.add(itemCut);
       menu.add(itemPaste);
       menubar.add(menu);
       setJMenuBar(menubar);
       text1=new JTextArea();
       text2=new JTextArea();
       splitPane=new JSplitPane(JSplitPane.HORIZONTAL_SPLIT,text1,text2);
       splitPane.setDividerLocation(120);
       setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
       add(splitPane,BorderLayout.CENTER);
       validate();
       itemCopy.addActionListener(this);
       itemCut.addActionListener(this);
       itemPaste.addActionListener(this);
    } 
    public void actionPerformed(ActionEvent e){
       if(e.getSource()==itemCopy)
           text1.copy();
       else if(e.getSource()==itemCut)
           text1.cut();
       else if(e.getSource()==itemPaste)
           text2.paste();
    }
}