File Account.java contains a definition for a simple bank account class with methods to withdraw, deposit, get the balance and account number, and return a String representation. Note that the constructor for this class creates a random account number. Save this class to your directory and study it to see how it works. Then modify it as follows:

1. Overload the constructor as follows:

• public Account (double initBal, String owner, long number) – initializes the balance, owner, and account number as specified
• public Account (double initBal, String owner) – initializes the balance and owner as specified; randomly generates the account number.
• public Account (String owner) – initializes the owner as specified; sets the initial balance to 0 and randomly generates the account number.

2. Overload the withdraw method with one that also takes a fee and deducts that fee from the account.

File TestAccount.java contains a simple program that exercises these methods. Save it to your directory, study it to see what it does, and use it to test your modified Account class.

//*******************************************************
// Account.java
//
// A bank account class with methods to deposit to, withdraw from,
// change the name on, and get a String representation
// of the account.
//*******************************************************

public class Account
{
private double balance;
private String name;
private long acctNum;

//----------------------------------------------
//Constructor -- initializes balance, owner, and account number
//----------------------------------------------
public Account(double initBal, String owner, long number)
{
balance = initBal;
name = owner;
acctNum = number;
}

//----------------------------------------------
// Checks to see if balance is sufficient for withdrawal.
// If so, decrements balance by amount; if not, prints message.
//----------------------------------------------
public void withdraw(double amount)
{
if (balance >= amount)
balance -= amount;
else
System.out.println("Insufficient funds");
}

//----------------------------------------------
// Adds deposit amount to balance.
//----------------------------------------------
public void deposit(double amount)
{
balance += amount;
}

//----------------------------------------------
// Returns balance.
//----------------------------------------------
public double getBalance()
{
return balance;
}


//----------------------------------------------
// Returns a string containing the name, account number, and balance.
//----------------------------------------------
public String toString()
{
return “Name:” + name +
“Account Number: ” + acctNum +
“Balance: “ + balance;
}
}




//*******************************************************
// TestAccount.java
//
// A simple driver to test the overloaded methods of
// the Account class.
//*******************************************************

import java.util.Scanner;

public class TestAccount
{
public static void main(String[] args)
{
String name;
double balance;
long acctNum;
Account acct;

Scanner scan = new Scanner(System.in);

System.out.println("Enter account holder's first name");
name = scan.next();
acct = new Account(name);
System.out.println("Account for " + name + ":");
System.out.println(acct);

System.out.println("Enter initial balance");
balance = scan.nextDouble();
acct = new Account(balance,name);
System.out.println("Account for " + name + ":");
System.out.println(acct);

System.out.println("Enter account number");
acctNum = scan.nextLong();
acct = new Account(balance,name,acctNum);
System.out.println("Account for " + name + ":");
System.out.println(acct);

System.out.print("Depositing 100 into account, balance is now ");
acct.deposit(100);
System.out.println(acct.getBalance());
System.out.print("Withdrawing $25, balance is now ");
acct.withdraw(25);
System.out.println(acct.getBalance());
System.out.print("Withdrawing $25 with $2 fee, balance is now ");
acct.withdraw(25,2);
System.out.println(acct.getBalance());

System.out.println("Bye!");
}
}

Answer rating: 100% (QA)

Dear Program import javautil class Account private double balance private String name private long a... View the full answer