Lambda Expression 02

Java

Lambda Expression 02

top2blue 2016. 7. 27. 19:08

import java.awt.FlowLayout;
import java.awt.HeadlessException;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;

@SuppressWarnings("serial")
public class LambdaEx02 extends JFrame{
	
	public LambdaEx02() throws HeadlessException {
		this("이름없는 윈도우");
	}

public LambdaEx02(String title) throws HeadlessException {
		super(title);
		setSize(400, 300);
		setLocationRelativeTo(null);
		setDefaultCloseOperation(EXIT_ON_CLOSE);
		setLayout(new FlowLayout());
		// 일반식
		JButton button1 = new JButton("눌러줘1");
		button1.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				JOptionPane.showMessageDialog(null, "눌렀냐!! - 1");
			}
		});
		add(button1);
		//람다식
		JButton button2 = new JButton("눌러줘2");
		button2.addActionListener((e)->{
				JOptionPane.showMessageDialog(null, "눌렀냐!! - 2");
		});
		add(button2);
		setVisible(true);
	}

public static void main(String[] args) {
		new LambdaEx02();
	}
}