firstwindow.java

如何建立文件的具体功能

import javax.swing.*;
import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;
 class FirstWindow extends JFrame{
/**
	 * 
	 */
	private static final long serialVersionUID = 6168757967461319049L;
JMenuBar menubar;
JMenu menu;
JMenuItem item1,item2;
FirstWindow(String s)
{
	super(s);
	setSize(160,170);
	setLocation(120,120);
	setVisible(true);menubar=new JMenuBar();
	menu=new JMenu("文件");
	item1=new JMenuItem("打开",new ImageIcon("open.gif"));
	item2=new JMenuItem("保存",new ImageIcon("save.gif"));
	item1.setAccelerator(KeyStroke.getKeyStroke('O'));
	item2.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S,InputEvent.CTRL_MASK));
	menu.add(item1);
	menu.addSeparator();
	menu.add(item2);
	menubar.add(menu);
	setJMenuBar(menubar);
	validate();
	setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
	
}
}