JAVA 基础窗体

import javax.swing.JFrame;
public class MyFirstFrame extends JFrame{
    public MyFirstFrame(){
        super();
        setTitle("TEST");
        setBounds(1200,1000,500,375);
        getContentPane().setLayout(null);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }

    public static void main(String[] args) {
        MyFirstFrame frame =new MyFirstFrame();
        frame.setVisible(true);
    }

}

基础窗体.jpg