Answered: How to Use the JAVA , HTML and JSP code…

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Question

Someone please help me,Basec on the image given ( Loan and Loan output).

How to Use the JAVA , HTML and JSP code given to create or change something and make the output ( Loan output) can store in database

(Create a database named " bookingcourtdb" and "jdbc / bookingcourtds")

File : ComputeLoan.html

<html>
<head>
<title>Compute Loan</title>
</head>
<body>
<form method="post" action="ComputeLoan">
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>

File: DisplayLoanComputationResult2.jsp

<%-- View component: DisplayLoanComputationResult2.jsp --%>
<jsp:useBean id="loan" scope="request" class="domain.Loan" />

<%-- alternate way
<%@page import="domain.Loan" %>
<% Loan loan =(Loan)request.getAttribute("loan"); %>
--%>

<html>
<head>
<title>Loan Computation Results</title>
</head>
<body>
<h1> ${name}</h1>
<h2>Name : ${customer}</h2><br><br>
<h2>Loan Information</h2>
Loan amount: RM${loan.loanAmount}<br />
<%--
Annual Interest Rate: ${loan.annualInterestRate}<br /> --%>

Annual Interest Rate: ${loan["annualInterestRate"]}<br />
Duration (in years) : ${loan.numberOfYears}<br />

Monthly payment: RM: <%= String.format("%.2f",loan.getMonthlyPayment()) %><br />
Total payment: RM: <%= String.format("%.2f",loan.getMonthlyPayment()) %><br /><br />

</body>
</html>

File: ComputeLoan.java

/* Controller component: ComputeLoan.java *.
*
*/
import domain.Loan;
import java.io.*;
import javax.servlet.*;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.*;

@WebServlet(urlPatterns = {"/ComputeLoan"})
public class ComputeLoan extends HttpServlet {

@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {

double amount = Double.parseDouble(request.getParameter("loanAmount"));
double rate = Double.parseDouble(request.getParameter("annualInterestRate"));
int duration = Integer.parseInt(request.getParameter("numberOfYears"));
Loan loan = new Loan(rate, duration, amount);
request.setAttribute("loan", loan);

RequestDispatcher rd = request.getRequestDispatcher("DisplayLoanComputationResults2.jsp");
rd.forward(request, response);
}
}

File: Loan.java

/* Model component: Loan.java */

package domain;

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

public Loan() {
}

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 annualInterestRate;
}

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

public int getNumberOfYears() {
return numberOfYears;
}

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

public double getLoanAmount() {
return loanAmount;
}

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

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

public double getTotalPayment() {
return getMonthlyPayment() * numberOfYears * 12;
}

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