Creating a Simple Swing Program in java

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// A simple Swing program

import javax.swing.*;

class SwingDemo {
 SwingDemo() {
  // Create a new JFrame container.
  JFrame jfrm = new JFrame("A Simple Swing Application");

  // Give the frame an initial size.
  jfrm.setSize(275, 100);

  // Terminate the program when the user closes the application.
  jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

  // Create a text-based label.
  JLabel jlab = new JLabel(" Swing defines the modern Java GUI. ");

  // Add the label to the content pane.
  jfrm.add(jlab);

  // Display the frame.
  jfrm.setVisible(true);
 }

 public static void main(String[] args) {
  // Create the frame on the event dispatching thread.
  SwingUtilities.invokeLater (new Runnable() {
   public void run() {
    new SwingDemo();
   }
  });
 }
 
}