What is the error in this java code ? What changes should I do to remove it ?
- by mekasperasky
import javax.swing.*; // For JPanel, etc.
import java.awt.*;           // For Graphics, etc.
import java.awt.geom.*;      // For Ellipse2D, etc.
public class ShapeExample extends JPanel {
  private Ellipse2D.Double circle =
    new Ellipse2D.Double(10, 10, 350, 350);
  private Rectangle2D.Double square =
    new Rectangle2D.Double(10, 10, 350, 350);
  public void paintComponent(Graphics g) {
    clear(g);
    Graphics2D g2d = (Graphics2D)g;
    g2d.fill(circle);
    g2d.draw(square);
  }
  // super.paintComponent clears offscreen pixmap,
  // since we're using double buffering by default.
  protected void clear(Graphics g) {
    super.paintComponent(g);
  }
  protected Ellipse2D.Double getCircle() {
    return(circle);
  }
  public static void main(String[] args) {
    WindowUtilities.openInJFrame(new ShapeExample(), 100, 100);
  }
}
The error I am getting is this . 
symbol  : variable WindowUtilities
location: class ShapeExample
    WindowUtilities.openInJFrame(new ShapeExample(), 100, 100);
    ^
1 error
What is wrong in the code?
r