Java Swing Program to demonstrate JButton

Program

import javax.swing.*;
public class JButtonDemo
{
	public static void main(String args[])
	{
		JFrame frm = new JFrame("JButton Demo");
		JButton btnSubmit;
		btnSubmit = new JButton("Login");
		btnSubmit.setBounds(0, 0, 100, 50);
		frm.add(btnSubmit);
		frm.setSize(300, 300); 
		frm.setLayout(null);
		frm.setVisible(true);
		frm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	}
}

Output