this is in Java (Subclasses of Account) In Programming Exercise 9.7, the Account

Question

this is in Java

(Subclasses of Account) In Programming Exercise 9.7, the Account class was defined to model a bank account. An account has the properties account number, balance, annual interest rate, and date created, and methods to deposit and with- draw funds. Create two subclasses for checking and saving accounts. A checking account has an overdraft limit, but a savings account cannot be overdrawn Draw the UML diagram for the classes and then implement them. Write a test program that creates objects of Account, SavingsAccount, and Checking Account and invokes their tostring() methods.

Explanation / Answer

//Test class

package sample1;

import java.util.Random;
import java.util.Scanner;
import java.util.Date;
public class test
{
   public static void main(String args[]){
   SavingsAccount sa=new SavingsAccount(1,1000.0,10.0,new Date(),0.0);
   CheckingAccount ca=new CheckingAccount(1,1000.0,10.0,new Date(),100.0);
   System.out.println("savings details:"+sa.toString());
   System.out.println("checking acc details :"+ca.toString());
   sa.deposit(100.0);
   ca.withdraw(1100.0);
  
   System.out.println("savings details:"+sa.toString());
   System.out.println("checking acc details :"+ca.toString());
   ca.withdraw(100.0);
   }
}

//Account class

package sample1;
import java.util.Date;
public class Account {
private int accountNo;
private double balance;
private double rate;
private Date createdDate;
private double overdraftLimit;
public double getOverdraftLimit() {
   return overdraftLimit;
}
public void setOverdraftLimit(double overdraftLimit) {
   this.overdraftLimit = overdraftLimit;
}
public Account(int accountNo, double balance, double rate, Date createdDate, double overdraftLimit) {
   super();
   this.accountNo = accountNo;
   this.balance = balance;
   this.rate = rate;
   this.createdDate = createdDate;
   this.overdraftLimit = overdraftLimit;
}
public Account(int accNo){
   this.accountNo=accNo;
}
public int getAccountNo() {
   return accountNo;
}
public void setAccountNo(int accountNo) {
   this.accountNo = accountNo;
}
public double getBalance() {
   return balance;
}
public void setBalance(double balance) {
   this.balance = balance;
}
@Override
public String toString() {
   return "Account [accountNo=" + accountNo + ", balance=" + balance + ", rate=" + rate + ", createdDate="
           + createdDate + "]";
}
public Account(int accountNo, double balance, double rate, Date createdDate) {
   super();
   this.accountNo = accountNo;
   this.balance = balance;
   this.rate = rate;
   this.createdDate = createdDate;
}
public double getRate() {
   return rate;
}
public void setRate(double rate) {
   this.rate = rate;
}
public Date getCreatedDate() {
   return createdDate;
}
public void setCreatedDate(Date createdDate) {
   this.createdDate = createdDate;
}
public void withdraw(double amount){
   if(-this.overdraftLimit<=this.balance-amount)
   this.balance-=amount;
   else
       System.out.println("withdraw failed : Overdraft limit crossed");
}
public void deposit(double amount){
   this.balance+=amount;
}
}

//Savings account
package sample1;

import java.util.Date;

public class SavingsAccount extends Account{

   public SavingsAccount(int accountNo, double balance, double rate, Date createdDate, double overdraftLimit) {
       super(accountNo, balance, rate, createdDate, overdraftLimit);
       // TODO Auto-generated constructor stub
   }

   public SavingsAccount(int accNo) {
       super(accNo);
       // TODO Auto-generated constructor stub
   }

   @Override
   public String toString() {
       return "SavingsAccount []"+super.toString();
   }

}

// Checking account

package sample1;

import java.util.Date;

public class CheckingAccount extends Account{

public CheckingAccount(int accountNo, double balance, double rate, Date createdDate, double overdraftLimit) {
       super(accountNo, balance, rate, createdDate, overdraftLimit);
       // TODO Auto-generated constructor stub
   }

public CheckingAccount(int accNo) {
       super(accNo);
       // TODO Auto-generated constructor stub
   }

public String toString(){
   return super.toString();
}
}

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.