Exercise 8'16 PsuedoCode

1
Exercise 8.16PsuedoCode

• Test.java
• Declare 2 objects Saver1 and Saver2
• invoke Saver1 and Saver2 on class
  SavingsAccount
• print Balance1 and Balance2
• SavingsAccount.java
• declare static variable annualInterestRate
• declare private variable savingsBalance
• invoke constructor for SavingsAccount
• Method calculateMonthlyInterest
• call method modifyInterestRate for current
  interest rate
• calculate new balance and return

2
Flowchart
3
Source Code

• Test.java
• import javax.swing.JOptionPane
• import SavingsAccount
• public class Test
• public static void main( String args )
• SavingsAccount saver1 new
  SavingsAccount(2000.00)
• SavingsAccount saver2 new
  SavingsAccount(3000.00)
• JOptionPane.showMessageDialog(null,
  Balance 1 is
  
  
  
• saver1.calculateMonthlyInterest() \n
  Balance 2 is
• saver2.calculateMonthlyInterest() )
• System.exit( 0 )

4
Source Code

• SavingsAccount.java
• public class SavingsAccount extends Object
• private static double annualInterestRate
• private doubl savingsBalance
• public SavingsAccount( double balance )
• savingsBalance balance
• public double calculateMonthlyInterest()
• annualInterestRate modifyInterestRate()
• double MonthlyInterest savingsBalance
  annualInterestRate / 12
• savingsBalance savingsBalance
  MonthlyInterest
• return savingsBalance
• public static double modifyInterestRate()
• return 0.04

5
Sample Output
Interest 4
Interest 4