Here is the loan.java the example is talking about // Implements Seriablizable t

ID: 3679485 • Letter: H

Question

Here is the loan.java the example is talking about

// Implements Seriablizable to support object IO
public class Loan implements java.io.Serializable {
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 numberOfYears */
public void setNumberOfYears(int numberOfYears) {
this.numberOfYears = numberOfYears;
}

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

/** Set a newloanAmount */
public void setLoanAmount(double loanAmount) {
this.loanAmount = loanAmount;
}

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

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

/** Return loan date */
public java.util.Date getLoanDate() {
return loanDate;
}
}

Explanation / Answer

ComputeLoan.html
<html>
<head>
<title>ComputeLoan</title>
</head>
<body>
<form method = "post" action = "loan">
Compute Loan Payment<br />
Loan Amount
<input type = "text" name = "loanAmount" /><br />
Annual Interest Rate
<input type = "text" name = "annualInterestRate" /><br />
Number of Years
<input type = "text" name = "numberOfYears" size = "3" /><br />
<p><input type = "submit" name = "Submit"
value = "Compute Loan Payment" />
<input type = "reset" value = "Reset" /></p>
</form>
</body>
</html>

import java.io.*;

import javax.serlet.*;

import javax.servlet.http.*;

public class Loan implements java.io.Serializable {
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 void doPost(HttpServletRequest request,HttpServletResponse response) throws ServletException,IoException

{

response.setContentType("texthtml");

PrintWriter out=resonse.getWriter();

double loanAmount=request.getParameter("loanAmount");

int numberOfYears=request.getParameter("number Of Years");

double annualInterestRate=request.getParameter("annualInterestRate");

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