[Java]JButton按钮事件学习

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package com.malue;

 

import java.awt.Container;

import java.awt.Insets;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.MouseAdapter;

import java.awt.event.MouseEvent;

 

import javax.swing.Icon;

import javax.swing.ImageIcon;

import javax.swing.JButton;

import javax.swing.JFrame;

 

public class TestButton {

    JFrame frame;

    Container container;

     

    public TestButton(){

        frame = new JFrame();

        frame.setTitle("按钮事件");

        frame.setLayout(null);

        container = frame.getContentPane();

         

        JButton btn = new JButton();

        Icon normal = new ImageIcon("res/ActionIcon/更改密码.png");

        Icon roll = new ImageIcon("res/ActionIcon/更改密码_roll.png");

        Icon down = new ImageIcon("res/ActionIcon/更改密码_down.png");     

         

        btn.setIcon(normal);

        btn.setPressedIcon(down);

        btn.setRolloverIcon(roll);

        btn.setSize(normal.getIconWidth(), normal.getIconHeight());

        btn.setMargin(new Insets(0,0,0,0));

        //btn.setHideActionText(true);

        btn.setFocusPainted(false);

        btn.setBorderPainted(false);

        btn.setContentAreaFilled(false);

        btn.addActionListener(new ActionListener(){

            @Override

            public void actionPerformed(ActionEvent arg0) {

                System.out.print("点击了按钮呢");

            }          

        });

        btn.addMouseListener(new MouseAdapter(){

            @Override

            public void mouseEntered(MouseEvent e){

                System.out.print("滑入");

            }

            @Override

            public void mouseExited(MouseEvent e){

                System.out.print("滑出");

            }

        });

         

        container.add(btn);

        frame.setBounds(100, 100, 300, 200);

        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        frame.setVisible(true);

    }

     

    public static void main(String[] args){

        new TestButton();

    }

}

 初学中~:)笔记~