Design a class named Account that contains: ▪ A private int data field named id for the account (default 0). ▪ A private double data field named balance for the account (default 0). ▪ A private double data field named annualInterestRate that stores the current interest rate (default 0). Assume that all accounts have the same interest rate. ▪ A private Date data field named dateCreated that stores the date when the account was created. ▪ A no-arg constructor that creates a default account. ▪ A constructor that creates an account with the specified id and initial balance. ■ The accessor and mutator methods for id, balance, and annualInterestRate. ■ The accessor method for dateCreated. ▪ A method named getMonthlyInterestRate() that returns the monthly interest rate. ▪ A method named getMonthlyInterest () that returns the monthly interest. ▪ A method named withdraw that withdraws a specified amount from the account. ▪ A method named deposit that deposits a specified amount to the account. Draw the UML diagram for the class then implement the class. (HINT: The method getMonthlyInterest() is to return monthly interest, not the interest rate. Monthly interest is balance * monthlyInterestRate. monthlyInterestRate is annualInterestRate / 12. Note annualInterestRate is a percentage, for example 4.5%. You need to divide it by 100.) Write a test program that creates an Account object with an account ID of 1122, a balance of $20,000, and an annual interest rate of 4.5%. Use the withdraw method to withdraw $2,500, use the deposit method to deposit $3,000, and print the balance, the monthly interest, and the date when this account was created.
Design a class named Account that contains: ▪ A private int data field named id for the account (default 0). ▪ A private double data field named balance for the account (default 0). ▪ A private double data field named annualInterestRate that stores the current interest rate (default 0). Assume that all accounts have the same interest rate. ▪ A private Date data field named dateCreated that stores the date when the account was created. ▪ A no-arg constructor that creates a default account. ▪ A constructor that creates an account with the specified id and initial balance. ■ The accessor and mutator methods for id, balance, and annualInterestRate. ■ The accessor method for dateCreated. ▪ A method named getMonthlyInterestRate() that returns the monthly interest rate. ▪ A method named getMonthlyInterest () that returns the monthly interest. ▪ A method named withdraw that withdraws a specified amount from the account. ▪ A method named deposit that deposits a specified amount to the account. Draw the UML diagram for the class then implement the class. (HINT: The method getMonthlyInterest() is to return monthly interest, not the interest rate. Monthly interest is balance * monthlyInterestRate. monthlyInterestRate is annualInterestRate / 12. Note annualInterestRate is a percentage, for example 4.5%. You need to divide it by 100.) Write a test program that creates an Account object with an account ID of 1122, a balance of $20,000, and an annual interest rate of 4.5%. Use the withdraw method to withdraw $2,500, use the deposit method to deposit $3,000, and print the balance, the monthly interest, and the date when this account was created.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question

Transcribed Image Text:Design a class named Account that contains:
▪ A private int data field named id for the account (default 0).
▪ A private double data field named balance for the account (default 0).
▪ A private double data field named annualInterestRate that stores the
current interest rate (default 0). Assume that all accounts have the same
interest rate.
▪ A private Date data field named dateCreated that stores the date when the
account was created.
▪ A no-arg constructor that creates a default account.
▪ A constructor that creates an account with the specified id and initial balance.
■ The accessor and mutator methods for id, balance, and
annualInterestRate.
■ The accessor method for dateCreated.
▪ A method named getMonthlyInterestRate() that returns the monthly
interest rate.
▪ A method named getMonthlyInterest () that returns the monthly interest.
▪ A method named withdraw that withdraws a specified amount from the
account.
▪ A method named deposit that deposits a specified amount to the account.
Draw the UML diagram for the class then implement the class. (HINT: The
method getMonthlyInterest() is to return monthly interest, not the interest
rate. Monthly interest is balance * monthlyInterestRate.
monthlyInterestRate is annualInterestRate / 12. Note
annualInterestRate is a percentage, for example 4.5%. You need to divide it
by 100.)
Write a test program that creates an Account object with an account ID of 1122, a
balance of $20,000, and an annual interest rate of 4.5%. Use the withdraw
method to withdraw $2,500, use the deposit method to deposit $3,000, and print
the balance, the monthly interest, and the date when this account was created.
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