Question

Problem: Download the file BankAccount.java and add it to your lab project. • In main(), create 3 BankAccount objects for “Johnson”, “Arafat” and “Johansson”. The original balances for these customers are $11000, $20000 and $5000 respectively. • Next, the program will deposit 5% in each account • Then the program will transfer $500 from “Johnson” to the other two customers. • Next assume that you do not know the data encapsulated in the 3 objects so display the names and balances of all customers who have their name starting with ‘J’. • Finally, the program will withdraw $100000 from one of three objects. Note: This program has no Input from the keyboard (no user input unless you want to do so). Sample output: Johnson has $10550.0 Johansson has $5750.0 You cannot withdraw that amount!

The form that I had to download was :

class BankAccount {
    private double balance;
    private String name;

  public BankAccount(String n, double initialBalance) {
    balance= initialBalance;
    name=n;
  }

  public void deposit(double amount) {
    balance += amount;  
   }

  public void withdraw(double amount) {   
    if (amount<=balance)
       balance -= amount;
    else 
       System.out.println("You cannot withdraw that amount !");
  }

  public double getBalance() {   
    return balance;
  }    

  public String getName() {   
    return name;
  } 

   public void transfer (double amount, BankAccount other) {  
      balance -= amount;
      other.balance += amount;
   } 
}

Answer 1

public class BankAccount1 {
private double balance;
private String name;

public BankAccount1(String n, double initialBalance) {
balance= initialBalance;
name=n;
}

public void deposit(double amount) {
balance += amount;
}

public void withdraw(double amount) {   
if (amount<=balance)
balance -= amount;
else
System.out.println("You cannot withdraw that amount !");
}

public double getBalance() {   
return balance;
}

public String getName() {   
return name;
}

public void transfer (double amount, BankAccount1 other) {
balance -= amount;
other.balance += amount;
}

public static void main(String[] args){
BankAccount1 obj1 = new BankAccount1("Johnson",11000);
BankAccount1 obj2 = new BankAccount1("Arafat",20000);
BankAccount1 obj3 = new BankAccount1("Johansson",5000);
obj1.deposit(550);
obj2.deposit(1000);
obj3.deposit(250);
obj1.transfer(500,obj2);
obj1.transfer(500,obj3);
if(obj1.name.startsWith("J")){
obj1.getBalance();
System.out.println(""+obj1.getName()+" has "+obj1.getBalance());
}
if(obj2.name.startsWith("J")){
obj2.getBalance();
System.out.println(""+obj2.getName()+" has "+obj2.getBalance());
}
if(obj3.name.startsWith("J")){
obj3.getBalance();
System.out.println(""+obj3.getName()+" has " +obj3.getBalance());
}
obj1.withdraw(100000);
}
}