JAVA21

最新推荐文章于 2025-10-31 13:55:42 发布

原创最新推荐文章于 2025-10-31 13:55:42 发布 · 307 阅读

0 ·

CC 4.0 BY-SA版权

JAVA21:
低级事件、语义事件

package Demo1;

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

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JTextField;


public class mytest1 {
JFrame frame =new JFrame("测试事件处理");
JTextField text =new JTextField(30);
JButton button =new JButton("确认");

private class Mylistenner implements ActionListener{


	public void actionPerformed(ActionEvent e) {

		text.setText("hell world");
	}
}
public void handle() {
	Mylistenner mylisteren =new Mylistenner();
	button.addActionListener(mylisteren);
	frame.add(text,BorderLayout.NORTH);
	frame.add(button,BorderLayout.SOUTH);
	frame.pack();
	frame.setVisible(true);
 }
public static void main(String[] args) {
	new mytest1().handle();
}
}