How to make JFrame in Java Swing?

 

GUI.java

package ui;

import javax.swing.JFrame;

public class Test {
	
	JFrame frame;
	
	
	public Test() {
		
		frame=new JFrame("Hancie e-Learning Studio");
		frame.setSize(850,550);
		frame.setLocationRelativeTo(null);
		frame.setDefaultCloseOperation(frame.EXIT_ON_CLOSE);
		frame.setResizable(false);
		frame.setVisible(true);
		
		
	}

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

	}

}

Output