jmenubartest.java

编程之道--java程序设计入门源代码

/**
 *　菜单栏的测试
 */
import javax.swing.JMenuBar;
import javax.swing.JFrame;
import javax.swing.JMenu;

public class JMenuBarTest
{
	public static void main(String[] args)
	{
		JMenuBarFrame  frame = new JMenuBarFrame();
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.show();
	}
}

class JMenuBarFrame extends JFrame
{
	private static final int WIDTH = 400;
	private static final int HEIGHT = 300;
	
	public JMenuBarFrame()
	{
		setSize(WIDTH, HEIGHT);//设置框架的大小		
		setTitle("菜单栏的测试");//设置框架的标题
		
		JMenuBar menuBar = new JMenuBar();
		setJMenuBar(menuBar);
		
		JMenu fileMenu = new JMenu("文件");
		JMenu editMenu = new JMenu("编辑");
        JMenu helpMenu = new JMenu("帮助");

		menuBar.add(fileMenu);
		menuBar.add(editMenu);
        menuBar.add(helpMenu);		
	}
}