Chapter 8, Problem 13PP

Program Plan Intro

Program plan:

Portfolio.java:

• Define a class named “Portfolio” and the keyword “extends” indicates that a class is inherited from another class named “BankAccount”.
  • Declare two “BankAccount” objects named “checking” and “savings”.
  • Create a constructor named “Portfolio” and initialize objects of “BankAccount” types.
  • Define a function named “deposit” and add the amount to the appropriate account.
    • Using the “if” conditional statement, check whether the “account” is equal to “S”.
      • If the condition is true, deposit the “amount” in a “savings” account.
    • Using the “if” conditional statement, check whether the “account” is equal to “C”.
      • If the condition is true, deposit the “amount” in a “checking” account.
  • Define a function named “withdraw” and remove the amount from the appropriate account.
    • Using the “if” conditional statement, check whether the “account” is equal to “S”.
      • If the condition is true, withdraw the “amount” from the “savings” account.
    • Using the “if” conditional statement, check whether the “account” is equal to “C”.
      • If the condition is true, withdraw the “amount” from the “checking” account.
  • Define a function named “transfer” and transfer the amount from one account to another.
    • Using the “if” conditional statement, check whether the “account” is equal to “S”.
      • If the condition is true, then “withdraw” the amount from the “savings” account and “deposit” the amount into the “withdraw” account.
    • Using “if” conditional statement, check whether the “account” is equal to “C”.
      • If the condition is true, then “withdraw” the amount from the “checking” account and “deposit” the amount into the “savings” account.
  • Define a function named “getBalance” and get the current balances of an account.
    • Using the “if” conditional statement, check whether the “account” is equal to “S”.
      • If the condition is true, then print the “savings” account balance
    • Using the “if” conditional statement, check whether the “account” is equal to “C”.
      • If the condition is true, then print the “checking” account balance

BankAccountTester.java:

• Define another class called “BankAccountTester” and test the methods of the “Portfolio” class.
  • Define a main function.
    • Create an object named “pottersAccount” of class “Portfolio”.
    • Call the function “deposit()” with two parameters “500” and “S”.
    • Call the function “withdraw()” with two parameters “200” and “S”
    • Call the function “getBalance()” and display the current balance of the account.
    • Call the function “transfer()” and transfer the amount from the savings account to Checking account.
    • Call the function “getBalance()” and display the revised checking balance