public class PhEntry { 
  String name; 
  int num; 

  public PhEntry(String name, int num) { 
    this.name = name; 
    this.num = num; 
  }

  public PhEntry changeNum(int num){
    return new PhEntry(this.name, num); 
  }

  public void changeNum2(int num){ 
    this.num = num;
  }

  // to represent the phone entry as a string
  public String toString(){
    return 
      new String("new PhEntry" + "(" +  "name: " + this.name + 
                 ", " + "number: " + this.num+ ")" ); 
  }

}