23일 차 Swing의 기본 JFrame

import javax.swing.JButton;

import javax.swing.JFrame;

class MyFrame extends JFrame {

public MyFrame() {

JButton button = new JButton("버튼");

this.add(button);

this.setSize(300, 200);

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

this.setTitle("Wooki");

this.setVisible(true);

}

}

public class Test2 {

public static void main(String[] args) {

MyFrame f = new MyFrame();

}

}