import javax.swing.JFrame; public class Ex1 extends JFrame { public Ex1(){ setTitle("JFrame ์ ๋๋ค"); setSize(300, 300); setLocationRelativeTo(null); //ํ๋ฉด ์ค์์ ์์ฑ setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setVisible(true); } public static void main(String[] args) { Ex1 e = new Ex1(); } }
