/**
 *  file :  AccountNumber.java
 *  desc :  Implements an account number for the virtual teller machine.
 *          An account number is a Hashable object.
 */


import HashTable.*;


public class AccountNumber implements Hashable {

  public AccountNumber( int newAcctNumber ) {
    acctNumber = newAcctNumber;
  }

  /**
   *  post :  returns this integer account number
   */
  public int getNumber() {
    return acctNumber;
  }

  /**
   *  post :  returns a hash value that is >= 0,
   *          based on this account number
   */
  public int hashFunction() {
    return acctNumber;
  }

  /**
   *   pre :  otherKey is an AccountNumber
   *  post :  returns true <==> account numbers are equal
   */
  public boolean equals( Object otherKey ) {
    AccountNumber otherAccount = (AccountNumber)otherKey;

    return (otherAccount.acctNumber == acctNumber);
  }

  private int acctNumber;   // account number
}


// eof