// ========================
//  CMPU-181, Spring 2013
//  Code from class
//  March 6, 2013
// ========================
//  NOTE:  To use this code, save it to a file named BankAcct.java,
//         Then open it in drjava.

class BankAcct {
  
  // ===============================
  //  CLASS-ORIENTED DATA (fields)
  // ===============================
  
  static String BankName = "CMPU-181 Bank of Vassar";
  
  // ===============================
  //  CLASS-ORIENTED FUNCTION
  // ===============================
  
  static void cofunc() {
    System.out.println("Hello from our bank!");
  }
  
  // ===============================
  //  OBJECT-ORIENTED DATA (fields)
  // ===============================
  
  // private data is not accessible to the "outside world"
  
  private double balance;
  public String owner;
  private String password;
  
  // ----------------------------
  //  CONSTRUCTORS
  // ----------------------------
  
  BankAcct() {
    System.out.println("Not doing any initialization!");
  }
  
  BankAcct(String name, String pwd, double initBal) {
    balance = initBal;
    owner = name;
    password = pwd;
  }
  
  // ===========================================
  //  OBJECT-ORIENTED METHODS
  // ===========================================
  
  //  INPUTS:  THIS, hidden input
  //  OUTPUT:  A string representation of the object
  
  public String acctString() {
    // hidden parameter:  this <--- the object associated
    //                              with this function ca
    return "Bank Account:  name = "
      + this.owner
      + ", password = secret!, balance = secret!";
  }
  
  //  getBalance 
  // --------------------------------------
  //  INPUT:  inputPwd, a String  
  //  OUTPUT:  current balance if the password is correct
  
  public double getBalance(String inputPwd) {
    if (this.password.equals(inputPwd))
      return this.balance;
    else
      System.out.println("Hey!  Password incorrect!");
      return 0;
  }
  
  //  makeWithdrawal
  // ---------------------------------------
  //  INPUTS:  inputPwd, a String
  //           wdAmt, withdrawal amount
  //  OUTPUT:  withdrawal
  //  SIDE EFFECT:  printing out information about
  //                the transaction
  
  public double makeWithdrawal(String inputPwd, double wdAmt){
    if ((this.password.equals(inputPwd))
          &&
        (wdAmt > 0)
          &&
        (wdAmt <= this.balance)) {
      System.out.println("Withdrawal authorized!");
      this.balance = this.balance - wdAmt;
      System.out.println("New balance = " + this.balance);
      return wdAmt;
    }
    else {
      System.out.println("Withdrawal not authorized!");
      return 0;
    }
  }  
}