Chapter 3, Problem 13RE

Explanation of Solution

The given code:

//define a class BankAccount

public class BankAccount

{

    //define mystery method

    public void mystery(BankAccount that, double amount)

    {

       //using “this” reference

        this.balance = this.balance - amount;

        //using this reference

        that.balance = that.balance + amount;

    }

    // Other bank account methods

}

The use of method:

The method “mystery()” simply transfers the money from the current account to that account...

Explanation of Solution

Example for calling the method:

Calling the method:

//first create BankAccount object

BankAccount david = new BankAccount();

BankAccount john = new BankAccount();

/*pass this reference variable to current BankAccount

calling method*/

david.mystery(john,1000.0);

/* transferring an amount of 1000$ from john david account to john accountt&#x...