JAVA学习笔记(四十八)- 适配器类 Adapter

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适配器类 Adapter，对接口中的抽象方法进行空实现

import java.awt.Button;import java.awt.Frame;import java.awt.event.MouseAdapter;import java.awt.event.MouseEvent;import java.awt.event.MouseListener;import java.awt.event.WindowAdapter;import java.awt.event.WindowEvent;import java.awt.event.WindowListener;/* * 适配器类 Adapter，对接口中的抽象方法进行空实现 */public class Test07 extends Frame{    Button btn=new Button("点我");    public Test07(String title){        super(title);        init();    }    public void init(){        addWindowListener(new WindowAdapter() {            @Override            public void windowClosing(WindowEvent e) {                System.exit(0);            }        });        btn.addMouseListener(new MouseAdapter() {            @Override            public void mouseClicked(MouseEvent e) {                System.out.println("被点中了！");            }        });        add(btn);        setSize(200,200);        setLocationRelativeTo(null);        setVisible(true);    }    public static void main(String[] args) {        new Test07("哈哈");    }}

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