java代码-----------java中的windowAdapter的实例

总结：我知道他是一专多能型。很优秀~~~~~~~~~~~。好幸福啊

package com.a.b;

import java.awt.Color;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.JFrame;
import javax.swing.JOptionPane;

public class Window {
	public static void main(String[] args) {
		//
		final JFrame f = new JFrame("窗口的");
		f.addWindowListener(new WindowAdapter() {
			// 这里没有那个方法
			public void actionPerformed(WindowEvent e) {// 这里的参数f还非的是final型的
				int userSelect = JOptionPane.showConfirmDialog(f, "确定要退出吗？",
						"你好", JOptionPane.YES_NO_OPTION);
				if (userSelect == JOptionPane.YES_NO_OPTION) {
					System.exit(0);

				}

			}

		});
		f.setBackground(Color.green);
		f.setVisible(true);
		f.setSize(500, 500);
		f.setDefaultCloseOperation(3);

	}
}