1  public class CallByValueDemo

  2  {

  3     public static void main(String[] args)

  4     {

  5        BankAccount harrysChecking = new BankAccount(2500);

  6        double savingsBalance = 1000;

  7        System.out.println("Before: " + savingsBalance);

  8        harrysChecking.transfer(500, savingsBalance); 

  9        System.out.println("After: " + savingsBalance);

 10        

 11        BankAccount harrysSavings = new BankAccount(1000);

 12        System.out.println("Before: " + harrysSavings.getBalance());

 13        harrysChecking.transfer(500, harrysSavings);  

 14        System.out.println("After: " + harrysSavings.getBalance());

 15        

 16        BankAccount savingsAccount = new BankAccount(1000);

 17        System.out.println("Before: " + savingsAccount.getBalance());

 18        harrysChecking.transfer2(500, savingsAccount);  

 19        System.out.println("After: " + savingsAccount.getBalance());

 20     }

 21  }