Loan.java

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

    //Default constructor
    public Loan(){
        this(2.5, 1, 1000);
    }

    //Construct a loan with specified annual interest rate, number of years, and loan amount
    public Loan(double annualInterestRate, int numberOfYears, double loanAmount) {
        this.annualInterestRate = annualInterestRate;
        this.numberOfYears = numberOfYears;
        this.loanAmount = loanAmount;
        loanDate = new java.util.Date();    
    }

    //Return annualInterestRate
    public double getAnnualInterestRate(){
        return annualInterestRate;
    }

    //Set a new annualInterestRate
    public void setAnnualInterestRate(double annualInterestRate) {
        this.annualInterestRate = annualInterestRate;     
    }

    //Return numberOfYears
    public int getNumberOfYears(){
        return numberOfYears;
    }

    //Set a new number of years
    public void setNumberOfYears(int numberOfYears) {
        this.numberOfYears = numberOfYears;
    }

    //Return loanAmount
    public int getNumberOfYears(){
        return numberOfYears;
    }
//Return numberOfYears
    public int getNumberOfYears(){
        return numberOfYears;
    }

    //Set a new number of years
    public void setNumberOfYears() {
        this.numberOfYears = numberOfYears;
    }

    //Return loan amount
    public double getLoanAmount() {
        return loanAmount;
    }

    //set a new loan amount
    public void setLoanAmount(double loanAmount) {
        this.loanAmount = loanAmount;
        
    }

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

    //Find total payment
    public double getTotalPayment(){
        double totalPayment = getMonthlyPayment() * numberOfYears *12;
        return totalPayment;
    }


}