10天轻松学习javase第8天下，Java gui 图像界面编程之事件监听

10天轻松学习javase第8天下，Java gui 图像界面编程之事件监听

直接运行例子，注释很详细

package javaseof10day.day8.pm.Listener;

import java.awt.BorderLayout;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.*;
import javax.swing.border.EmptyBorder;

public class Demo1ActionListener extends JFrame {

	private static final long serialVersionUID = 1L;


	JPanel jPanelAll;
	JButton button;
	int clicks = 0;

	public Demo1ActionListener() {

		button = new JButton("我是普通按钮"); // 创建JButton对象
		button.setFont(new Font("黑体", Font.BOLD, 16)); // 修改字体样式
		button.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e)

			{

				button.setText("按钮被单击了 " + (clicks++) + " 次");

			}
		});

		this.setTitle("Demo1ActionListener");
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		this.setBounds(100, 100, 400, 200);

		jPanelAll = new JPanel();

		jPanelAll.setBorder(new EmptyBorder(5, 5, 5, 5));
		jPanelAll.se