1  import java.awt.Rectangle;

  2  

  3  /**

  4     This example demonstrates constructors.

  5  */

  6  public class ConstructorDemo

  7  {

  8     public static void main(String[] args)

  9     {

 10        // Constructs and prints a rectangle

 11        System.out.println(new Rectangle(5, 10, 20, 30));

 12  

 13        // Constructs a rectangle and saves it in a variable

 14        Rectangle box = new Rectangle(5, 10, 20, 30);

 15        System.out.print("box: ");

 16        System.out.println(box);

 17  

 18        // The constructor with no arguments

 19        box = new Rectangle();

 20        System.out.print("box: ");

 21        System.out.println(box);

 22     }

 23  }