CSC1109_Tutorials/Week3_Lab/Submission/CSC1109_Lab3_2200624.tex

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\begin{document}

\title{CSC 1109 Lab 3}

\author{Woon Jun Wei, 2200624}

\date{\today}

\maketitle

\section*{Question 1}

\begin{lstlisting}[label={list:first},caption=Question 1 Source Code.]
import java.util.*;

public class loan {
    private double annualInterestRate;
    private int numberOfYears;
    private double loanAmount;
    private java.util.Date loanDate;

    public loan(){
        this.annualInterestRate = 2.5;
        this.numberOfYears = 1;
        this.loanAmount = 1000;
        loanDate = new java.util.Date();
    }
    public loan(double annualInterestRate, int numberOfYears, double loanAmount){
        this.annualInterestRate = annualInterestRate;
        this.numberOfYears = numberOfYears;
        this.loanAmount = loanAmount;
        loanDate = new java.util.Date();
    }

    public double getAnnualInterestRate(){
        return this.annualInterestRate;
    }

    public int getNumberOfYears(){
        return this.numberOfYears;
    }

    public double getLoanAmount(){
        return this.loanAmount;
    }

    public java.util.Date getLoanDate(){
        return this.loanDate;
    }

    public void setAnnualInterestRate(double annualInterestRate){
        this.annualInterestRate = annualInterestRate;
    }

    public void setNumberOfYears(int numberOfYears){
        this.numberOfYears = numberOfYears;
    }

    public void setLoadAmount(double loanAmount){
        this.loanAmount = loanAmount;
    }

    public double getMonthlyPayment(){
        double monthlyInterestRate = annualInterestRate / 1200;
        double monthlyPayment = loanAmount * monthlyInterestRate / (1 - (1 / Math.pow(1 + monthlyInterestRate, numberOfYears * 12)));
        return monthlyPayment;
    }
    public double getTotalPayment(){
        double totalPayment = getMonthlyPayment() * numberOfYears * 12;
        return totalPayment;
    }

    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);

        // Annual Interest
        System.out.print("Enter annual interest rate, for example, 8.25: ");
        double annualInterestRate = sc.nextDouble();

        // Number of years
        System.out.print("Enter number of years as an integer: ");
        int numberOfYears = sc.nextInt();

        // Loan Amount
        System.out.print("Enter loan amount, for example, 120000.95: ");
        double loanAmount = sc.nextDouble();

        // Create a Loan object
        loan loan1 = new loan(annualInterestRate, numberOfYears, loanAmount);

        // Date
        java.util.Date loanDate = loan1.getLoanDate();
        System.out.println("The loan was created on " + loanDate);

        // Monthly payment
        double monthlyPayment = loan1.getMonthlyPayment();
        System.out.printf("The monthly payment is %.2f\n", monthlyPayment);

        // Total Payment
        double totalPayment = loan1.getTotalPayment();
        System.out.printf("The total payment is %.2f", totalPayment);

    }
}
\end{lstlisting}

\begin{lstlisting}[label={list:first_output},caption=Question 1 Output.]
Enter annual interest rate, for example, 8.25: 2.5
Enter number of years as an integer: 5
Enter loan amount, for example, 120000.95: 1000
The loan was created on Mon Jan 09 15:31:09 SGT 2023
The monthly payment is 17.75
The total payment is 1064.84
\end{lstlisting}

\end{document}