Java中的事件监听知识点&动作监听简单实现（含源码阅读）

        JFrame jFrame = new JFrame();
        //设置界面大小
        jFrame.setSize(603,680);
        //设置标题
        jFrame.setTitle("测试监听效果");
        //设置永远置顶
        jFrame.setAlwaysOnTop(true);
        //设置程序随着窗口关闭而结束运行
        //this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        jFrame.setDefaultCloseOperation(3);
        //设置界面居中
        jFrame.setLocationRelativeTo(null);
        //取消默认图片放置位置
        jFrame.setLayout(null);

 JButton jtb = new JButton("点击我");

jtb.setBounds(0,0,200,50);

jtb.addActionListener(new testActionListener());

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class testActionListener implements ActionListener {
    @Override
    public void actionPerformed(ActionEvent e) {
        System.out.println("您已点击按钮");
    }
}

jtb.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                System.out.println("您已点击按钮");
            }
        });

jFrame.getContentPane().add(jtb);

jFrame.setVisible(true);

for (int i = 0; i < data.length; i++){
  data[i / 4][i % 4] = tempArr[i];
}