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+import javax.swing.*;%0Aimport java.awt.*;%0A%0Apublic class GUIExample extends JFrame %7B%0A%0A      /**%0A      * @param args%0A      */%0A      public static void main(String%5B%5D args) %7B%0A       Frame613 f = new Frame613();%0A       f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);%0A       f.setVisible(true);%0A       %0A      %7D%0A%7D%0A      class Frame613 extends JFrame%0A      %7B%0A    %09  public Frame613()%7B%0A    %09%09  setTitle(%22613 rocks!%22);%0A    %09%09  setSize(300,200);%0A    %09%09  setLocation(100,200);%0A    %09%09  %0A    %09%09  Panel613 panel = new Panel613();%0A    %09%09  Container cp = getContentPane();%0A    %09%09  cp.add(panel);%0A    %09  %7D%0A    %09  %0A      %7D%0A      %0A      class Panel613 extends JPanel%0A      %7B%0A    %09  public void paintComponent (Graphics g)%7B%0A    %09%09  super.paintComponent(g);%0A    %09%09  g.drawString(%22Hello World!%22, 75, 100);%0A    %09  %7D%0A      %7D%0A

Create GUIExample.java