class Number{
  int i;
  public Number(int i){
    this.i = i;
  }
}

public class Assignment {

  /**
   * @param args
   */
  public static void main(String[] args) {
    
    Number n1 = new Number(47);
    Number n2 = new Number(9);
    System.out.println("n1.i = " + n1.i);
    System.out.println("n2.i = " + n2.i);
    n1 = n2;
    System.out.println("n1.i = " + n1.i);
    System.out.println("n2.i = " + n2.i);
    
  }

}