package second;

import java.awt.Color;

import java.awt.Frame;

import java.awt.event.WindowAdapter;

import java.awt.event.WindowEvent;

import java.awt.*;

public class Window extends Frame {

    public Window(String string){

        super(string);//调用父类构造方法

    }

    public static void main(String[] args){

        Window w = new Window("我的第一个window!!");//实例化

        w.setSize(500,300);//设置窗口大小

        w.setBackground(Color.blue);//背景颜色

        w.setTitle("哈哈，我才是第一个!");//标题

        w.setLayout(null);//取消布局管理器

        w.setVisible(true);//显示

        w.addWindowListener(w.new writeWindow());//添加窗口监视器

    }

    class writeWindow extends WindowAdapter {

        public void windowClosing(WindowEvent e){//监视关闭

            System.exit(0);

        }

    }

}