QUESTION 1 Design a class named Account that contains A private int data field n
ID: 3589907 • Letter: Q
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QUESTION 1 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 annuallnterestRate that stores the current interest rate (default 0). Assume 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 annuallnterestRate The accessor method for dateCreated A method named getMonthlyInterestRate) that returns the monthly interest rate A method named getMonthly Interest() 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. Implement the class in Java as required by the design above. (nt The method getMonthlyInterest0 is to return monthly interest, not the interest rate. Monthly interest is balance monthlyInterestRate. monthlyInterestRate is annualInterestRate 12. Note that annuallnterestRate is a percentage, eg, like 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 S3,000, and print the balance, the monthly interest, and the date when this account was created.Explanation / Answer
import java.util.*;
import java.lang.*;
class Account
{
private int id;
private double balance;
private double annualInterestRate;
private Date dateCreated ;
public Account() //default constructor
{
id = 0;
balance = 0;
annualInterestRate = 0;
}
public Account(int id,double balance) //argument constructor
{
this.id = id;
this.balance = balance;
}
//set and get methods
public void setID(int id)
{
this.id = id;
}
public int getID()
{
return id;
}
public double setBalance(double balance)
{
return balance;
}
public double getBalance()
{
return balance;
}
public void setAnnualInterestRate(double annualInterestRate)
{
this.annualInterestRate = annualInterestRate;
}
public double getAnnualInterestRate()
{
return annualInterestRate;
}
public void setDateCreated(Date d)
{
this.dateCreated = d;
}
public Date getDateCreated()
{
return dateCreated;
}
public double getMonthlyInterestRate()
{
return annualInterestRate/12;
}
public double getMonthlyInterest()
{
return balance * getMonthlyInterestRate();
}
public void deposit(double amount)
{
balance = balance + amount;
}
public void withdraw(double amount)
{
balance = balance - amount;
}
}
class Test
{
public static void main (String[] args)
{
Date d = new Date(365L * 24L * 60L * 60L * 1000L); //set Date object
Account acc = new Account(1122,20000);
acc.setAnnualInterestRate(0.045);
acc.setDateCreated(d);
acc.withdraw(2500);
acc.deposit(3000);
System.out.println("Balance : $"+acc.getBalance());
System.out.println(" Monthly Interest : $"+ acc.getMonthlyInterest());
System.out.println(" Date when account created in Milliseconds since Jan. 1, 1970 GMT : "+acc.getDateCreated());
}
}
Output:
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