/*
 * Bar.java
 * To illustrate program made of two classes. 
 * Goes with Foo.java.  
 */

public class Bar
  {
  private int barID; // Instance variable.

  public Bar(int id) // Constructor.
    {
    barID = id*id;
    }

  public void printBarID() // Instance method.
    {
    System.out.println("The ID of this Bar is " + barID);
    }

  public static void main(String[] args)
    {
    Bar bar1 = new Bar(5);
    Bar bar2 = new Bar(6);
    bar1.printBarID();
    bar2.printBarID();
    }
  }