advance java

SHRI RAWATPURA SARKAR INSTITUTE OF TECHNOLOGY ,NEW RAIPUR (C.G.)

ADVANCE JAVA LAB

CSE/8th/Advance Java Lab/Prepared by Vivek Kumar Sinha


Experiment No: 01

AIM:A. Program for printing hello word:

B.Program for printing system Date & Time JSP/SERLET:

A.class Hello{

public static void main (String args[])

{

System.out.println("Java Hello World");

}

}

B. <%@ page import="java.io.*,java.util.*, javax.servlet.*" %><html><head><title>Display Current Date & Time</title></head><body><center><h1>Display Current Date & Time</h1></center><% Date date = new Date(); out.print( "<h2 align=\"center\">" +date.toString()+"</h2>");%></body></html>



Experiment No: 02

AIM: Write a server side program for finding factorial of number.

import java.io.*;

class Factorial{ publicstaticvoid main(String args[]) { String str; int no,fact; fact=1;

try{ BufferedReader obj = new BufferedReader(new InputStreamReader(System.in)); System.out.print("Enter number whose Factorial is to be found : "); System.out.flush(); str=obj.readLine(); no=Integer.parseInt(str);

while(no > 0) { fact=fact*no; no=no-1; }

System.out.println("FACTORIAL of a given number is : "+fact); } catch(Exception e) {} }

Experiment No: 03

AIM: . Write a Server side program in JSP/SERVLET for performing Addition of two no accept numbers from client side by using HTML form



import java.util.Scanner;

class AddNumbers{

public static void main(String args[]) {

int x, y, z;System.out.println("Enter two integers to calculate their sum "); Scanner in = new Scanner(System.in); x = in.nextInt();y = in.nextInt(); z = x + y; System.out.println("Sum of entered integers = "+z); }

}

Experiment No: 04

AIM: Write a Server side program in JSP/SERVLET for calculating the simple interest accept the necessary parameters from client side by using.



<%-- Document : interest Created on : 30 Oct, 2012, 10:30:44 PM Author : NESTED CODE--%>

<%@page contentType="text/html" pageEncoding="UTF-8"%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> Now we have to create the page "intjsp.jsp" to calculate interestCode for this "intjsp.jsp" page ::Document : intjsp

Created on : 30 Oct, 2012, 10:41:10 PM Author : NESTED CODE--%>

<%@page contentType="text/html" pageEncoding="UTF-8"%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html> <head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>JSP Page</title> </head> <body><br><br><center><pre><H1> <% String ns= request.getParameter("principle"); String ns1= request.getParameter("year"); String ns2= request.getParameter("interest"); int n1=Integer.parseInt(ns); int n2=Integer.parseInt(ns1); int n3=Integer.parseInt(ns2); double si=((n1*n2*n3)/100); double x; x=n1+si; %> <% out.println("Principal= "+n1); out.println(" Years= "+n2); out.println(" Rate of Interest= "+n3); out.println("<br> "); out.println(" Simple Interest= "+si);



out.println(" Simple Interest= "+x); %> </H1> </pre> </center> </body> </body> </html>

Experiment No: 05CSE/8th/Advance Java Lab/Prepared by Vivek Kumar Sinha


AIM: Write a Server side program in JSP/SERVLET for solving Quadratic Equation accept necessary parameters from HTML form

index.jsp

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"

pageEncoding="ISO-8859-1"%>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">

<title>Quad Solver</title>

</head>

<body>

<FORM action="GreetingServlet" method="POST">

Quadratic Equation Solver for Equations in the form of

Ax^2 + Bx + C<BR>

<BR>

Enter the value of A: <INPUT type="text" name="A" size="15"><BR>

Enter the value of B: <INPUT type="text" name="B" size="15"><BR>

Enter the value of C: <INPUT type="text" name="C" size="15"><BR>

<br>

<input type="submit" value="Calculate!">

<br>

<BR>

<BR>CSE/8th/Advance Java Lab/Prepared by Vivek Kumar Sinha


</FORM>

</body>

</html>

GreetingServlet.java

package com.mycompany.servlet;

import java.io.IOException;

import java.io.PrintWriter;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

public class GreetingServlet extends HttpServlet {

private static final long serialVersionUID = 1L;

/**

* @see HttpServlet#HttpServlet()

*/

public GreetingServlet() {

super();

}

protected void doPost(HttpServletRequest request,

HttpServletResponse response) throws ServletException, IOException



{

response.setContentType("text/html;charset=UTF-8");

PrintWriter out = response.getWriter();

String A = request.getParameter("A").toString();

String B = request.getParameter("B").toString();

String C = request.getParameter("C").toString();

double a = Double.parseDouble(A);

double b = Double.parseDouble(B);

double c = Double.parseDouble(C);

double D = QuadraticSolver.getD();

double[] roots = QuadraticSolver.quadratic();

out.println("<html>");

out.println("<head>");

out.println("<title>Quadratic Equation Solver</title>");

out.println("</head>");

out.println("<body>");

out.println("<h1>Quadratic Equation Solver </h1>");

out.println("<h2>Your Equation is: <br><br>" + A + "x^2 + " + B + "x + " + C+ "<br>");

//QuadraticSolver solver = new QuadraticSolver ();

out.println("</h2>");

//double D = QuadraticSolver.getD();

if (a == 0.0)

out.println("<br>This is not a Quadratic quation ! ");



if (b == 0.0)

out.println("<br>There is no solution ! ");

if (a > 0.0 && b > 0) {

out.println("<br><br>There is only 1 solution -C/B : " );

out.println("<br><br>Your Solution is : - "+ c + " / " + b + " equals" + -c/b );

out.println("<br><br> X1 = "+ roots[0] );

out.println("<br><br> X2 = "+ roots[1] );

if(roots !=null){

out.println("<br><br>Solutions are:<br><br> X1 = " + roots[0] + " or X2 = " + roots[1]+"<br>");

}

Else

{

out.println("<br><br>There Are No Real Solutions !!");

}

out.println("</h2>");

out.println("</body>");

out.println("</html>");

out.close();

}

}

}

QuadraticSolver.java



package com.mycompany.servlet;

import static java.lang.StrictMath.*;

public class QuadraticSolver {

static double a;

static double b;

static double c;

//double D;

double discriminant = 0.0;

double root1;

double root2;

static double[] quadratic() {

double a = 0;

double b = 0;

double c = 0;

// Return the roots of the quadratic equation

double[] roots = new double[2];

double D = Math.pow(b, 2) - (c*1)*(-c);

if (D<0) {

System.out.println("There are no real roots");

System.out.println(D);

return roots;

}



// Use Viete's formula to avoid loss of significance

//double q = -0.5 * (b + copySign(sqrt(d), b));

/roots[0] = q/a;

//roots[1] = c/q;

//return roots;

//roots[0]=-b/2/a+Math.pow(Math.pow(b,2)-4*a*c,0.5)/2/a;

roots[0] = ((-b + sqrt(D)) / (2 * a));

return roots;

}

static double getD() {

double D=0;

D = b * b - 4.0f * a * c;

return D;

}

public static void main(String[] args) {

//double D=0;

// D = Math.pow(b, 2) - (c*a)*(-c);

double D = QuadraticSolver.getD();

double[] roots = quadratic();

System.out.println(roots[0]);

System.out.println(roots[1]);

}

My Directory structure:

MyFirstServlet



Deployment descriptor:MyFirstServlet

Java Resources :src

Com.mycompany.servlet

GreetingServlet.java

QuadraticSolver.Java

Libraries

Java Script resources

Build

WebContent

META-INF

WEB-INF

Classes

Lib

Web.xml

Index.jsp

Experiment No: 06

AIM: Write a Server side program in JSP/SERVLET for Income Tax Calculation

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"CSE/8th/Advance Java Lab/Prepared by Vivek Kumar Sinha


pageEncoding="ISO-8859-1"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Calculate Interest JSP</title></head><body><%String fname = request.getParameter("fname");String lname = request.getParameter("lname");String gender = request.getParameter("gender");String profession = request.getParameter("profession");String prefix = " ";if (gender.equals("Male")) { prefix = "Mr."; }else if (gender.equals("Female")) { prefix = "Ms."; } %><FONT COLOR = "Blue">Hello <%=prefix %> <%=fname%> <%=lname%> who works in a <%=profession %></FONT><% String sincome = request.getParameter("income");float income = Float.parseFloat(sincome);out.println("<BR>Your Annual Income is <FONT COLOR = Blue> " +income + "</FONT>");float tax;float diff;if(income <= 100000){out.println("<BR>You are below the Tax Bracket!!");}else if(income >100000 && income <= 200000){out.println("<BR>Your Tax Bracket is between Rs.1,00000 to Rs.2,00000");out.println("<BR><B><U> Tax Rule: </U></B>10% of income above Rs.1 Lakh");diff = income - 100000;tax = (float)0.1*diff;out.println("<BR>Tax to be paid is <FONT COLOR = Blue> "+tax+ "</FONT>");}else if(income >200000 && income <= 300000){out.println("<BR>Your Tax Bracket is between between Rs.1,00000 to Rs.3,00000");out.println("<BR><B><U>Tax Rule: </U></B> 10% of income upto Rs.1 Lakh and 20% of rest of income");diff = income - 200000;



tax = (float)0.2*diff + (float)0.1*100000;out.println("<BR>Tax to be paid is <FONT COLOR = Blue> "+tax+ "</FONT>");}else if(income >100000 && income <= 400000){out.println("<BR>Your Tax Bracket is between Rs.1,00000 to Rs.4,00000");out.println("<BR><B><U>Tax Rule: </U></B>10% of income upto Rs.1 Lakh 20% of income upto Rs.3 Lakh and 30% of rest of income");diff = income - 300000;tax = (float)0.3*diff + (float)0.2*200000 + (float)0.1*100000; out.println("<BR>Tax to be paid is <FONT COLOR = Blue> "+tax);}else if(income > 400000){out.println("<BR>You fall in the tax bracket greater than Rs.4,00000");diff = income - 400000;tax = diff + (float)0.3*300000 + (float)0.2*200000 + (float)0.1*100000; out.println("<BR><B><U>Tax Rule:</U></B> 10% of income upto Rs.1 Lakh 20% of income upto 3Lakh, 30% of income upto Rs.4 lakh and 100% of rest of income");out.println("<BR>Tax to be paid is <FONT COLOR = Blue> "+tax+ "</FONT>");}//end if %></body></html>

Experiment No: 07

AIM: Program:Write a server side JSP/SERVLET program for checking prime number, accept number from html file handover the no to JSP/Servlet file process it and return the result.



<%-- Document : index Created on : 12 Oct, 2012, 7:35:11 PM Author : nested code team--%>


<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>JSP Page</title> </head> <body><br><br><center> <form action="primejsp.jsp "><h1>Enter the no :: <input type=text name=n ><br><br><input type=submit value="Submit"></h1></form></center> </body></html>

Now we have to create the page "primejsp.jsp" to calculate interestCode for this "intjsp.jsp" page ::

<%-- Document : primejsp Created on : 31 Oct, 2012, 11:59:34 AM Author :NESTED CODE--%>


<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>JSP Page</title> </head> <body><center><h1>The required Result is:: </h1> <h2> <% int n,i,flag=0; String ns= request.getParameter("n");



n=Integer.parseInt(ns); if(n>1) { for(i=2;i<=n/2;i++) { if(n%i==0) { flag=1; break; } } } if(flag==0) { out.println("<pre>"); out.println(n+" is a prime no."); out.println("</pre>"); } else { out.println("<pre>"); out.println(n+" is not a prime no."); out.println("</pre>"); } %> </h2></center> </body></html>

The Outpur will be like ::

Experiment No: 08



AIM: WAP for swapping of two numbers.

package swap;

import java.util.*;

public class Main

{

public static void main(String[] args)

{

int a,b;

System.out.println("Enter the two numbers: ");

Scanner s= new Scanner(System.in);

a = s.nextInt();

b = s.nextInt();

System.out.println("Number before swapping:" +a+" " +b);

a=a+b;

b=a-b;

a=a-b;

System.out.println("Number after swapping:" +a+" " +b);

}

}


advance java

Engineering