2021-04-25 IndepClasssListener

package GUI;
import java.awt.event.*;
import java.awt.*;
import javax.swing.*;

public class IndepClasssListener extends JFrame {
	
	public IndepClasssListener() {
		setTitle("Action 이벤트 예제");
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		Container c = getContentPane();
		c.setLayout(new FlowLayout());
		JButton btn = new JButton("Action");
		btn.addActionListener(new MyActionListener());
		c.add(btn);
		
		setSize(350,150);
		setVisible(true);		
	}
	
	
	public static void main(String[] args) {
		new IndepClasssListener();
		
	}
	
	class MyActionListener implements ActionListener{
		
		public void actionPerformed(ActionEvent e) {
			JButton b = (JButton)e.getSource();
			if(b.getText().equals("Action"))
				b.setText("액션");
			
			else
				b.setText("Action");
		}
		
	}
}