Chapter 3.3, Problem 11SC

Program Plan Intro

Given program:

//Define the class "BankAccount"

public class BankAccount

{

    //Declare required variables

    private double balance;

    // Define a default constructor

    public BankAccount

    {

        //Initialize the balance amount

        balance=0;

    }

    // Define the parametrized constructor

    public BankAccount(double initialBalance)

    {

        //Initialize the balance amount

        balance=initialBalance;

    }

    //Give function definition to deposit amount

    public void deposit(double amount)

    {

        //Compute the balance

        balance=balance+amount;

    }

    //Give function definition to withdraw amount

    public void withdraw(double amount)

    {

        //Compute the balance

        balance=balance-amount;

    }

    //Give function definition to return the balance   amount

    public double getBalance()

    {

        //Return statement

        return balance;

    }

}

 Explanation:

 In the above program,

• Define a class “BankAccount”.
  • Declare the variable “balance”.
  • Define a default constructor.
    • Initialize the balance amount.
  • Define a parameterized constructor.
    • Initialize the balance amount.
  • Give the function definition “deposit()” to withdraw amount from the account.
    • Compute the balance amount.
  • Give the function definition “withdraw()” to withdraw amount from the account.
    • Compute the balance amount
  • Give function definition to return the balance amount.
    • Return “balance”.