Create a Simple Swing Application

import javax.swing.*;
class SimpleSwing
{
SimpleSwing() 
{
 JFrame jfrm = new JFrame("A Simple Swing Application");
 jfrm.setSize(275, 100);
 jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 JLabel jlab = new JLabel(" Swing means powerful GUIs.");
 jfrm.add(jlab);
 jfrm.setVisible(true);
}
public static void main(String args[]) 
{
 SwingUtilities.invokeLater(new Runnable() 
{
public void run() 
{
 new SimpleSwing();
}
});
}
}

Output:
Create a Simple Swing Application