Question

Be sure to submit homework via Canvas, not email. Ask questions via email or Canvas inbox. Late assignments will not be accepted. Important: please zip the complete NetBeans project file (not just the jar or .java file) before submitting to Canvas. If you just submit the jar or .java file, it will not be graded and if you later submit the NetBeans project it may be treated as a late submission. Please name the project after your name (e.g., HWSFirstNameLastName). There will be a penalty for not following this requirement. Homework 5 Objects and Classes (8 points) You are required to create a NetBeans project modeled after a banking situation. First, create the project named as HWSYourFirstNameLastName. Check to create the main class, which will create a package under Source Packages, named after your project name, and open the main class containing the main method. Next, copy and paste the Transaction class from your HW4 into this package using NetBeans' Refactor feature. If not using Refactor, just copy and paste the Transaction class into this package, then open the Transaction class and update its first line of code by changing the package name to its current package name. For this project, you are required to create two classes other than the Transaction class: an Account class (whereas an account may incur multiple transactions) and the main class (containing the main method). Please closely follow the requirements below Requirements for the Account class: You need to create the Account class as an independent file in the same package of your main class. Class data fields: A private data field of int data type, representing the id of the account. A private data field of String data type, representing the name of the customer A private data field of double data type, representing the balance of the account. A private data field of double data type, representing the annual interest rate. Key assumptions: (1) all accounts created following this class construct share the same interest rate. (2) While the annual interest rate is a percentage, e. g., 4.5%, but for simplicity users will just enter the double number as 4.5 (not 0.045). Therefore, you, the code developer, need to divide the annual interest rate by 100 whenever you use it in a calculation A private data field of Date data type, representing the account creating date A private data field of ArrayList data type, representing a list of transactions for the account. Each element of this ArrayList must be an instance of the Transaction class defined in HW4 (the Transaction class has been copied into the current package) Class constructors: A no-arg constructor that creates a default account with default variable values. Another constructor that creates an instance of the Account class with specified values for account id name, and initial balance. Note: for both constructors, instead of passing a Date object to the constructor, you should use the new operator inside the body of the constructor to pass a new Date instance to the date data field (as we did for the Account class in class)

Answer 1

I dont have any transaction class information so i have created one of my choice with single description field.If you have transaction class you can change the setter in the withdraw and deposit methods

Account class:

import java.util.ArrayList;

import java.util.Date;

import java.util.List;

public class Account {

private int accId;

private String custName;

private double accBalance;

private double interestRate;

private Date createdAt;

private List<Transaction> transList=new ArrayList<>();

public Account() {

accId=0;

custName="";

accBalance=0.0;

interestRate=0;

Date dt=new java.util.Date();

createdAt=dt;

}

public Account(int id,String name,double balance,double rate){

accBalance=balance;

accId=id;

custName=name;

interestRate=rate;

Date dt=new java.util.Date();

createdAt=dt;

}

public int getAccId() {

return accId;

}

public void setAccId(int accId) {

this.accId = accId;

}

public String getCustName() {

return custName;

}

public void setCustName(String custName) {

this.custName = custName;

}

public double getAccBalance() {

return accBalance;

}

public void setAccBalance(double accBalance) {

this.accBalance = accBalance;

}

public double getInterestRate() {

return interestRate;

}

public void setInterestRate(double interestRate) {

this.interestRate = interestRate;

}

public Date getCreatedAt() {

return createdAt;

}

public void setCreatedAt(Date createdAt) {

this.createdAt = createdAt;

}

public List<Transaction> getTransList() {

return transList;

}

public void setTransList(List<Transaction> transList) {

this.transList = transList;

}

public double getMonthlyInterest(){

double inteEarned=this.accBalance*(this.interestRate/1200);

return inteEarned;

}

public void withDraw(double amt){

this.accBalance=this.accBalance-amt;

Transaction t=new Transaction();

t.setDesc("withdrawn amount of "+amt+" from "+accId+" remaining balance is "+accBalance);

transList.add(t);

}

public void deposit(double amtDepo){

this.accBalance=this.accBalance+amtDepo;

Transaction t=new Transaction();

t.setDesc("deposited amount of "+amtDepo+" to "+accId+" new balance is "+accBalance);

transList.add(t);

}

}

Transaction class;

public class Transaction {

private String desc;

public String getDesc() {

return desc;

}

public void setDesc(String desc) {

this.desc = desc;

}

}

Tester class:

public class AccountTester {

public static void main(String[] args) {

// TODO Auto-generated method stub

Account acc=new Account(1122,"George", 1000,1.5);

acc.deposit(30);//depositing 30,40,50$

acc.deposit(40);

acc.deposit(50);

acc.withDraw(5);//withdrwaing 5,4,2$

acc.withDraw(4);

acc.withDraw(2);

System.out.println("Account summary");

System.out.println("------------------------");

System.out.println("Account holders name : "+acc.getCustName());

System.out.println("Annual interest rate : "+acc.getInterestRate());

System.out.println("Account Balance : "+acc.getAccBalance());

System.out.println("Monthly interest earned : "+acc.getMonthlyInterest());

System.out.println("Transactions done");

for(Transaction t:acc.getTransList()){

System.out.println(t.getDesc());

}

}

}

Expected output:

貝Console X «terminated> Accountlester [Java Application] C:\Program FilesUavarel .8.0-111\binjavaw.exe (Mar 20 Account summary Account holders name George Annual interest rate : 1.5 Account Balance 1109.0 Monthly interest earned : 1.38625 Transactions done deposited amount of 30.0 to 1122 new balance is 1030.0 deposited amount of 40.0 to 1122 new balance is 1070.0 deposited amount of 50.0 to 1122 new balance is 1120.0 withdrawn amount of 5.0 from 1122 remaining balance is 1115.0 withdrawn amount of 4.0 from 1122 remaining balance is 1111.0 withdrawn amount of 2.0 from 1122 remaining balance is 1109.0