You will need the original Account and Transaction class from chapter 4 Given: 1

Question

You will need the original Account and Transaction class from chapter 4

Given:

1)  

//********************************************************************
// Account.java Author: Lewis/Loftus
//
// Represents a bank account with basic services such as deposit
// and withdraw.
//********************************************************************

import java.text.NumberFormat;

public class Account
{
private final double RATE = 0.035; // interest rate of 3.5%

private long acctNumber;
private double balance;
private String name;

//-----------------------------------------------------------------
// Sets up the account by defining its owner, account number,
// and initial balance.
//-----------------------------------------------------------------
public Account(String owner, long account, double initial)
{
name = owner;
acctNumber = account;
balance = initial;
}
//-----------------------------------------------------------------
// Deposits the specified amount into the account. Returns the
// new balance.
//-----------------------------------------------------------------
public double deposit(double amount)
{
balance = balance + amount;
return balance;
}

//-----------------------------------------------------------------
// Withdraws the specified amount from the account and applies
// the fee. Returns the new balance.
//-----------------------------------------------------------------
public double withdraw(double amount, double fee)
{
balance = balance - amount - fee;
return balance;
}
//-----------------------------------------------------------------
// Adds interest to the account and returns the new balance.
//-----------------------------------------------------------------
public double addInterest()
{
balance += (balance * RATE);
return balance;
}

//-----------------------------------------------------------------
// Returns the current balance of the account.
//-----------------------------------------------------------------
public double getBalance()
{
return balance;
}

//-----------------------------------------------------------------
// Returns a one-line description of the account as a string.
//-----------------------------------------------------------------
public String toString()
{
NumberFormat fmt = NumberFormat.getCurrencyInstance();
return (acctNumber + " " + name + " " + fmt.format(balance));
}
}

2)  

//********************************************************************
// Transactions.java Author: Lewis/Loftus
//
// Demonstrates the creation and use of multiple Account objects.
//********************************************************************

public class Transactions
{
//-----------------------------------------------------------------
// Creates some bank accounts and requests various services.
//-----------------------------------------------------------------
public static void main(String[] args)
{
Account acct1 = new Account("Ted Murphy", 72354, 102.56);
Account acct2 = new Account("Jane Smith", 69713, 40.00);
Account acct3 = new Account("Edward Demsey", 93757, 759.32);

acct1.deposit(25.85);

double smithBalance = acct2.deposit(500.00);
System.out.println("Smith balance after deposit: " +
smithBalance);
System.out.println("Smith balance after withdrawal: " +
acct2.withdraw (430.75, 1.50));

acct1.addInterest();
acct2.addInterest();
acct3.addInterest();

System.out.println();
System.out.println(acct1);
System.out.println(acct2);
System.out.println(acct3);
}
}

Explanation / Answer

//******************************************************************** // Account.java Author: Lewis/Loftus // // Represents a bank account with basic services such as deposit // and withdraw. //******************************************************************** import java.text.NumberFormat; public class Account { private final double RATE = 0.035; // interest rate of 3.5% private long acctNumber; private double balance; private String name; //----------------------------------------------------------------- // Sets up the account by defining its owner, account number, //----------------------------------------------------------------- public Account(String owner, long account) { name = owner; acctNumber = account; balance = 0; } //----------------------------------------------------------------- // Sets up the account by defining its owner, account number, // and initial balance. //----------------------------------------------------------------- public Account(String owner, long account, double initial) { name = owner; acctNumber = account; balance = initial; } //----------------------------------------------------------------- // Deposits the specified amount into the account. Returns the // new balance. //----------------------------------------------------------------- public double deposit(double amount) { balance = balance + amount; return balance; } //----------------------------------------------------------------- // Withdraws the specified amount from the account and applies // the fee. Returns the new balance. //----------------------------------------------------------------- public double withdraw(double amount, double fee) { balance = balance - amount - fee; return balance; } //----------------------------------------------------------------- // Adds interest to the account and returns the new balance. //----------------------------------------------------------------- public double addInterest() { balance += (balance * RATE); return balance; } //----------------------------------------------------------------- // Returns the current balance of the account. //----------------------------------------------------------------- public double getBalance() { return balance; } //----------------------------------------------------------------- // Returns a one-line description of the account as a string. //----------------------------------------------------------------- public String toString() { NumberFormat fmt = NumberFormat.getCurrencyInstance(); return (acctNumber + " " + name + " " + fmt.format(balance)); } } //******************************************************************** // Transactions.java Author: Lewis/Loftus // // Demonstrates the creation and use of multiple Account objects. //******************************************************************** public class Transactions { //----------------------------------------------------------------- // Creates some bank accounts and requests various services. //----------------------------------------------------------------- public static void main(String[] args) { Account acct1 = new Account("Ted Murphy", 72354, 102.56); Account acct2 = new Account("Jane Smith", 69713, 40.00); Account acct3 = new Account("Edward Demsey", 93757, 759.32); Account acct4 = new Account("Cristiano Ronaldo", 93758); acct1.deposit(25.85); acct4.deposit(100); double smithBalance = acct2.deposit(500.00); System.out.println("Smith balance after deposit: " + smithBalance); System.out.println("Smith balance after withdrawal: " + acct2.withdraw (430.75, 1.50)); acct1.addInterest(); acct2.addInterest(); acct3.addInterest(); acct4.addInterest(); System.out.println(); System.out.println(acct1); System.out.println(acct2); System.out.println(acct3); System.out.println(acct4); } }

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