Slip 2) A) Write a JSP program to check whether given number is Perfect or not. (Use Include
directive).
checkPerfect.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<title>Check Perfect Number</title>
</head>
<body>
<h2>Check Perfect Number</h2>
<form action="checkPerfectResult.jsp" method="post">
Enter a number: <input type="text" name="number">
<input type="submit" value="Check">
</form>
<%@ include file="checkPerfectLogic.jsp" %>
</body>
</html>
checkPerfectLogic.jsp
<%
// Get the number from the form
int number = Integer.parseInt(request.getParameter("number"));
// Calculate the sum of proper divisors
int sum = 0;
for(int i = 1; i < number; i++) {
if(number % i == 0) {
sum += i;
}
}
// Check if the sum equals the number
if(sum == number) {
%>
<p><%= number %> is a perfect number.</p>
<%
} else {
%>
<p><%= number %> is not a perfect number.</p>
<%
}
%>
B) Write a java program in multithreading using applet for drawing flag.
import java.applet.Applet;
import java.awt.*;
public class FlagDrawingApplet extends Applet {
public void init() {
setBackground(Color.white);
}
public void paint(Graphics g) {
// Draw flag components using multiple threads
Thread redThread = new Thread(new FlagComponent(g, Color.red, 50, 50, 200, 100));
Thread whiteThread = new Thread(new FlagComponent(g, Color.white, 50, 150, 200, 100));
Thread blueThread = new Thread(new FlagComponent(g, Color.blue, 50, 250, 200, 100));
redThread.start();
whiteThread.start();
blueThread.start();
}
}
class FlagComponent implements Runnable {
private Graphics g;
private Color color;
private int x, y, width, height;
public FlagComponent(Graphics g, Color color, int x, int y, int width, int height) {
this.g = g;
this.color = color;
this.x = x;
this.y = y;
this.width = width;
this.height = height;
}
@Override
public void run() {
g.setColor(color);
g.fillRect(x, y, width, height);
}
}
//Run it using appletviewer class.
/*** Dot Net ***/
Slip 2) A) Write a Vb.Net program to move the Text “Pune University” continuously from Left
to Right and Vice Versa.
Public Class Form1
Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer1.Tick
Static direction As Integer = 1 ' 1 for moving right, -1 for moving left
Dim newX As Integer = Label1.Location.X + direction * 5 ' Adjust the speed by changing the value
If newX + Label1.Width > Me.ClientSize.Width Then
direction = -1 ' Change direction when reaching right edge
ElseIf newX < 0 Then
direction = 1 ' Change direction when reaching left edge
End If
Label1.Location = New Point(newX, Label1.Location.Y)
End Sub
End Class
B) Write a C#.Net program to create a base class Department and derived classes Sales and
Human Resource. Accept the details of both departments and display them in proper
format.
using System;
class Department
{
public string Name { get; set; }
public string Location { get; set; }
public virtual void DisplayDetails()
{
Console.WriteLine("Department Name: " + Name);
Console.WriteLine("Location: " + Location);
}
}
class Sales : Department
{
public int SalesCount { get; set; }
public override void DisplayDetails()
{
base.DisplayDetails();
Console.WriteLine("Sales Count: " + SalesCount);
}
}
class HumanResource : Department
{
public int EmployeesCount { get; set; }
public override void DisplayDetails()
{
base.DisplayDetails();
Console.WriteLine("Employees Count: " + EmployeesCount);
}
}
class Program
{
static void Main(string[] args)
{
// Create Sales department
Sales salesDept = new Sales();
salesDept.Name = "Sales Department";
salesDept.Location = "Floor 1, Building A";
salesDept.SalesCount = 100;
// Create Human Resource department
HumanResource hrDept = new HumanResource();
hrDept.Name = "Human Resource Department";
hrDept.Location = "Floor 2, Building B";
hrDept.EmployeesCount = 50;
// Display details of both departments
Console.WriteLine("Details of Sales Department:");
salesDept.DisplayDetails();
Console.WriteLine();
Console.WriteLine("Details of Human Resource Department:");
hrDept.DisplayDetails();
}
}
Slip 5: A) Write a JSP program to calculate sum of first and last digit of a given number.
Display sum in Red Color with font size 18.
sumoffirstandlastdigit.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<title>Sum of First and Last Digit</title>
</head>
<body>
<h2>Sum of First and Last Digit</h2>
<%
// Get the number from the request parameter
int number = Integer.parseInt(request.getParameter("number"));
// Calculate the sum of first and last digit
int firstDigit = number;
while (firstDigit >= 10) {
firstDigit /= 10;
}
int lastDigit = number % 10;
int sum = firstDigit + lastDigit;
%>
<p style="color: red; font-size: 18px;">
Sum of first and last digit of <%= number %> is <%= sum %>
</p>
</body>
</html>
B) Write a java program in multithreading using applet for Traffic signal.
mult.java
import java.applet.*;
import java.awt.*;
public class TrafficSignal extends Applet implements Runnable {
private Thread thread;
private boolean running;
private int currentSignal; // 0 - Red, 1 - Yellow, 2 - Green
public void init() {
setSize(200, 400);
setBackground(Color.white);
currentSignal = 0; // Initial signal is Red
}
public void start() {
if (thread == null) {
thread = new Thread(this);
running = true;
thread.start();
}
}
public void stop() {
if (thread != null) {
running = false;
thread = null;
}
}
public void run() {
while (running) {
try {
Thread.sleep(3000); // Signal duration
} catch (InterruptedException e) {
e.printStackTrace();
}
changeSignal();
repaint();
}
}
public void changeSignal() {
currentSignal = (currentSignal + 1) % 3; // Rotate between Red, Yellow, Green
}
public void paint(Graphics g) {
g.setColor(Color.black);
g.fillRect(75, 50, 50, 150); // Pole
g.setColor(Color.red);
g.fillOval(85, 60, 30, 30); // Red Light
g.setColor(Color.yellow);
g.fillOval(85, 110, 30, 30); // Yellow Light
g.setColor(Color.green);
g.fillOval(85, 160, 30, 30); // Green Light
// Change light color based on currentSignal
switch (currentSignal) {
case 0: // Red
g.setColor(Color.red);
g.fillOval(85, 60, 30, 30);
break;
case 1: // Yellow
g.setColor(Color.yellow);
g.fillOval(85, 110, 30, 30);
break;
case 2: // Green
g.setColor(Color.green);
g.fillOval(85, 160, 30, 30);
break;
}
}
}
Slip 5) A) Write a VB.NET program to accept a character from keyboard and check whether it
is vowel or consonant. Also display the case of that character.
Module Module1
Sub Main()
Dim ch As Char
Console.WriteLine("Enter a character:")
ch = Console.ReadLine()
If Char.IsLetter(ch) Then
Select Case ch.ToString().ToLower()
Case "a", "e", "i", "o", "u"
Console.WriteLine(ch & " is a vowel.")
Case Else
Console.WriteLine(ch & " is a consonant.")
End Select
If Char.IsUpper(ch) Then
Console.WriteLine(ch & " is in uppercase.")
ElseIf Char.IsLower(ch) Then
Console.WriteLine(ch & " is in lowercase.")
End If
Else
Console.WriteLine(ch & " is not a letter.")
End If
Console.ReadLine()
End Sub
End Module
B)Design a web application form in ASP.Net having loan amount, interest rate and
duration fields. Calculate the simple interest and perform necessary validation i.e.
Ensures data has been entered for each field. Checking for non-numeric value. Assume
suitable web-form controls and perform necessary validation.
LoanCalculator.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="LoanCalculator.aspx.cs" Inherits="LoanCalculator" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Loan Calculator</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<h2>Loan Calculator</h2>
<p>
Loan Amount: <asp:TextBox ID="txtLoanAmount" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="rfvLoanAmount" runat="server" ControlToValidate="txtLoanAmount" ErrorMessage="* Required"></asp:RequiredFieldValidator>
<asp:RegularExpressionValidator ID="revLoanAmount" runat="server" ControlToValidate="txtLoanAmount" ErrorMessage="* Invalid" ValidationExpression="\d+"></asp:RegularExpressionValidator>
</p>
<p>
Interest Rate (%): <asp:TextBox ID="txtInterestRate" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="rfvInterestRate" runat="server" ControlToValidate="txtInterestRate" ErrorMessage="* Required"></asp:RequiredFieldValidator>
<asp:RegularExpressionValidator ID="revInterestRate" runat="server" ControlToValidate="txtInterestRate" ErrorMessage="* Invalid" ValidationExpression="\d+"></asp:RegularExpressionValidator>
</p>
<p>
Duration (Years): <asp:TextBox ID="txtDuration" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="rfvDuration" runat="server" ControlToValidate="txtDuration" ErrorMessage="* Required"></asp:RequiredFieldValidator>
<asp:RegularExpressionValidator ID="revDuration" runat="server" ControlToValidate="txtDuration" ErrorMessage="* Invalid" ValidationExpression="\d+"></asp:RegularExpressionValidator>
</p>
<p>
<asp:Button ID="btnCalculate" runat="server" Text="Calculate" OnClick="btnCalculate_Click" />
</p>
<p>
<asp:Label ID="lblResult" runat="server" Text=""></asp:Label>
</p>
</div>
</form>
</body>
</html>
LoanCalculator.aspx.cs
using System;
public partial class LoanCalculator : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void btnCalculate_Click(object sender, EventArgs e)
{
if (IsValid)
{
try
{
double loanAmount = double.Parse(txtLoanAmount.Text);
double interestRate = double.Parse(txtInterestRate.Text);
double duration = double.Parse(txtDuration.Text);
double simpleInterest = (loanAmount * interestRate * duration) / 100;
lblResult.Text = string.Format("Simple Interest: {0:C}", simpleInterest);
}
catch (Exception ex)
{
lblResult.Text = "Error: " + ex.Message;
}
}
}
}
Slip 7 A) Write a JSP script to validate given E-Mail ID
<%@ page session="true" %>
<html>
<head>
<title>Email Validation</title>
</head>
<body>
<h1>Email Validation</h1>
<%
String email = request.getParameter("email"); // Get email from form submission
boolean isValid = false;
if (email != null) {
// Basic email format regex (can be improved)
String regex = "^[\\w.+_-]+@[\\w.-]+\\.[a-zA-Z]{2,4}$";
isValid = email.matches(regex);
}
if (isValid) {
out.print("Valid email address.");
} else {
out.print("Invalid email address. Please enter a valid email.");
}
%>
<br><br>
<form action="your_jsp_file.jsp" method="post">
<label for="email">Enter your email:</label>
<input type="text" id="email" name="email" required>
<br><br>
<button type="submit">Submit</button>
</form>
</body>
</html>
B)Write a Multithreading program in java to display the number’s between 1 to 100
continuously in a TextField by clicking on button. (use Runnable Interface)
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class NumberDisplay extends JFrame {
private JTextField textField;
private JButton startButton;
private volatile boolean running;
public NumberDisplay() {
setTitle("Number Display");
setSize(300, 100);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setLayout(new FlowLayout());
textField = new JTextField(10);
textField.setEditable(false);
add(textField);
startButton = new JButton("Start");
startButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (!running) {
running = true;
startButton.setText("Stop");
new Thread(new NumberRunnable()).start();
} else {
running = false;
startButton.setText("Start");
}
}
});
add(startButton);
setVisible(true);
}
private class NumberRunnable implements Runnable {
public void run() {
for (int i = 1; i <= 100 && running; i++) {
textField.setText(Integer.toString(i));
try {
Thread.sleep(1000); // 1 second delay
} catch (InterruptedException e) {
e.printStackTrace();
}
}
running = false;
startButton.setText("Start");
}
}
public static void main(String[] args) {
new NumberDisplay();
}
}
Slip 7) A) Write a ASP.Net program to accept a number from the user in a textbox control and
throw an exception if the number is not a perfect number. Assume suitable controls on
the web form.
PerfectNumberChecker.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="PerfectNumberChecker.aspx.cs" Inherits="PerfectNumberChecker" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Perfect Number Checker</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<h2>Perfect Number Checker</h2>
<p>
Enter a Number: <asp:TextBox ID="txtNumber" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="rfvNumber" runat="server" ControlToValidate="txtNumber" ErrorMessage="* Required"></asp:RequiredFieldValidator>
<asp:RegularExpressionValidator ID="revNumber" runat="server" ControlToValidate="txtNumber" ErrorMessage="* Invalid" ValidationExpression="\d+"></asp:RegularExpressionValidator>
</p>
<p>
<asp:Button ID="btnCheck" runat="server" Text="Check" OnClick="btnCheck_Click" />
</p>
<p>
<asp:Label ID="lblResult" runat="server" Text=""></asp:Label>
</p>
</div>
</form>
</body>
</html>
PerfectNumberChecker.aspx.cs
using System;
public partial class PerfectNumberChecker : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void btnCheck_Click(object sender, EventArgs e)
{
if (IsValid)
{
try
{
int number = int.Parse(txtNumber.Text);
if (IsPerfectNumber(number))
{
lblResult.Text = number + " is a perfect number.";
}
else
{
throw new Exception(number + " is not a perfect number.");
}
}
catch (Exception ex)
{
lblResult.Text = "Error: " + ex.Message;
}
}
}
private bool IsPerfectNumber(int number)
{
int sum = 0;
for (int i = 1; i < number; i++)
{
if (number % i == 0)
{
sum += i;
}
}
return sum == number;
}
}
B) Write a VB.NET program to create a table student (Roll No, SName, Class,City).
Insert the records (Max: 5). Update city of students to ‘Pune’ whose city is ‘Mumbai’
and display updated records in GridView
Form1.vb
Imports System.Data.SqlClient
Public Class Form1
Dim connectionString As String = "Data Source=YourServer;Initial Catalog=YourDatabase;Integrated Security=True"
Dim connection As New SqlConnection(connectionString)
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
' Create table student if not exists
Dim createTableQuery As String = "IF NOT EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'student') AND type in (N'U')) " &
"CREATE TABLE student (RollNo INT PRIMARY KEY, SName VARCHAR(50), Class VARCHAR(10), City VARCHAR(50))"
ExecuteQuery(createTableQuery)
' Insert records into student table
Dim insertQuery As String = "INSERT INTO student (RollNo, SName, Class, City) VALUES (@RollNo, @SName, @Class, @City)"
Dim students As New List(Of Student) From {
New Student(1, "John", "10th", "Mumbai"),
New Student(2, "Alice", "11th", "Pune"),
New Student(3, "Bob", "12th", "Mumbai"),
New Student(4, "Emma", "10th", "Pune"),
New Student(5, "David", "11th", "Mumbai")
}
For Each student In students
ExecuteQuery(insertQuery, New SqlParameter("@RollNo", student.RollNo),
New SqlParameter("@SName", student.SName),
New SqlParameter("@Class", student.Class),
New SqlParameter("@City", student.City))
Next
' Update city of students from 'Mumbai' to 'Pune'
Dim updateQuery As String = "UPDATE student SET City = 'Pune' WHERE City = 'Mumbai'"
ExecuteQuery(updateQuery)
' Display updated records in GridView
Dim selectQuery As String = "SELECT * FROM student"
Dim adapter As New SqlDataAdapter(selectQuery, connection)
Dim table As New DataTable()
adapter.Fill(table)
GridView1.DataSource = table
GridView1.DataBind()
End Sub
Private Sub ExecuteQuery(query As String, ParamArray parameters As SqlParameter())
connection.Open()
Using cmd As New SqlCommand(query, connection)
cmd.Parameters.AddRange(parameters)
cmd.ExecuteNonQuery()
End Using
connection.Close()
End Sub
End Class
Public Class Student
Public Property RollNo As Integer
Public Property SName As String
Public Property Class As String
Public Property City As String
Public Sub New(rollNo As Integer, sName As String, class As String, city As String)
Me.RollNo = rollNo
Me.SName = sName
Me.Class = class
Me.City = city
End Sub
End Class
Slip 9 A) Write a Java Program to create a Emp (ENo, EName, Sal) table and insert record
into it. (Use PreparedStatement Interface)
import java.sql.*;
public class EmployeeDatabase {
public static void main(String[] args) {
try {
// Connect to MySQL database
Connection connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/your_database_name", "your_username", "your_password");
// Create table Emp
Statement createStatement = connection.createStatement();
createStatement.executeUpdate("CREATE TABLE Emp (ENo INT AUTO_INCREMENT PRIMARY KEY, EName VARCHAR(50), Sal DECIMAL(10, 2))");
createStatement.close();
// Insert record into Emp
PreparedStatement preparedStatement = connection.prepareStatement("INSERT INTO Emp (EName, Sal) VALUES (?, ?)");
preparedStatement.setString(1, "John Doe");
preparedStatement.setDouble(2, 50000.00);
preparedStatement.executeUpdate();
preparedStatement.close();
// Close connection
connection.close();
System.out.println("Record inserted successfully");
} catch (SQLException e) {
e.printStackTrace();
}
}
}
B) Write a JSP program to create an online shopping mall. User must be allowed to do
purchase from two pages. Each page should have a page total. The third page should
display a bill, which consists of a page total of whatever the purchase has been done
and print the total. (Use Session)
firstpage.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ page import="java.io.*,java.util.*" %>
<html>
<head>
<title>Online Shopping Mall</title>
</head>
<body>
<h2>Page 1 - Item 1</h2>
<form action="secondpage.jsp" method="post">
Quantity: <input type="text" name="quantity1"><br>
<input type="submit" value="Next">
</form>
</body>
</html>
secondpage.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ page import="java.io.*,java.util.*" %>
<%
int quantity1 = Integer.parseInt(request.getParameter("quantity1"));
session.setAttribute("quantity1", quantity1);
%>
<html>
<head>
<title>Online Shopping Mall</title>
</head>
<body>
<h2>Page 2 - Item 2</h2>
<form action="thirdpage.jsp" method="post">
Quantity: <input type="text" name="quantity2"><br>
<input type="submit" value="Next">
</form>
</body>
</html>
thirdpage.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ page import="java.io.*,java.util.*" %>
<%
int quantity1 = (Integer)session.getAttribute("quantity1");
int quantity2 = Integer.parseInt(request.getParameter("quantity2"));
int total = quantity1 + quantity2;
session.setAttribute("total", total);
%>
<html>
<head>
<title>Online Shopping Mall</title>
</head>
<body>
<h2>Bill</h2>
<p>Page 1 Total: <%= quantity1 %></p>
<p>Page 2 Total: <%= quantity2 %></p>
<p>Total: <%= total %></p>
</body>
</html>
Slip 9) A) Write a Menu driven program in C#.Net to perform following functionality:
Addition, Multiplication, Subtraction, Division.
using System;
class Program
{
static void Main(string[] args)
{
while (true)
{
Console.WriteLine("Menu:");
Console.WriteLine("1. Addition");
Console.WriteLine("2. Subtraction");
Console.WriteLine("3. Multiplication");
Console.WriteLine("4. Division");
Console.WriteLine("5. Exit");
Console.WriteLine("Enter your choice:");
int choice;
if (!int.TryParse(Console.ReadLine(), out choice))
{
Console.WriteLine("Invalid input. Please enter a number.");
continue;
}
switch (choice)
{
case 1:
Addition();
break;
case 2:
Subtraction();
break;
case 3:
Multiplication();
break;
case 4:
Division();
break;
case 5:
Environment.Exit(0);
break;
default:
Console.WriteLine("Invalid choice. Please select a number from 1 to 5.");
break;
}
}
}
static void Addition()
{
double num1, num2;
Console.WriteLine("Enter first number:");
if (!double.TryParse(Console.ReadLine(), out num1))
{
Console.WriteLine("Invalid input. Please enter a number.");
return;
}
Console.WriteLine("Enter second number:");
if (!double.TryParse(Console.ReadLine(), out num2))
{
Console.WriteLine("Invalid input. Please enter a number.");
return;
}
Console.WriteLine("Result: " + (num1 + num2));
}
static void Subtraction()
{
double num1, num2;
Console.WriteLine("Enter first number:");
if (!double.TryParse(Console.ReadLine(), out num1))
{
Console.WriteLine("Invalid input. Please enter a number.");
return;
}
Console.WriteLine("Enter second number:");
if (!double.TryParse(Console.ReadLine(), out num2))
{
Console.WriteLine("Invalid input. Please enter a number.");
return;
}
Console.WriteLine("Result: " + (num1 - num2));
}
static void Multiplication()
{
double num1, num2;
Console.WriteLine("Enter first number:");
if (!double.TryParse(Console.ReadLine(), out num1))
{
Console.WriteLine("Invalid input. Please enter a number.");
return;
}
Console.WriteLine("Enter second number:");
if (!double.TryParse(Console.ReadLine(), out num2))
{
Console.WriteLine("Invalid input. Please enter a number.");
return;
}
Console.WriteLine("Result: " + (num1 * num2));
}
static void Division()
{
double num1, num2;
Console.WriteLine("Enter dividend:");
if (!double.TryParse(Console.ReadLine(), out num1))
{
Console.WriteLine("Invalid input. Please enter a number.");
return;
}
Console.WriteLine("Enter divisor:");
if (!double.TryParse(Console.ReadLine(), out num2) || num2 == 0)
{
Console.WriteLine("Invalid input or division by zero. Please enter a non-zero number.");
return;
}
Console.WriteLine("Result: " + (num1 / num2));
}
}
B) Create an application in ASP.Net that allows the user to enter a number in the
textbox named "getnum". Check whether the number in the textbox "getnum" is
palindrome or not. Print the message accordingly in the label control named lbldisplay
when the user clicks on the button "check".
PalindromeChecker.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="PalindromeChecker.aspx.cs" Inherits="PalindromeChecker" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Palindrome Checker</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<h2>Palindrome Checker</h2>
<p>
Enter a Number: <asp:TextBox ID="getnum" runat="server"></asp:TextBox>
</p>
<p>
<asp:Button ID="check" runat="server" Text="Check" OnClick="check_Click" />
</p>
<p>
<asp:Label ID="lbldisplay" runat="server" Text=""></asp:Label>
</p>
</div>
</form>
</body>
</html>
PalindromeChecker.aspx.cs
using System;
public partial class PalindromeChecker : System.Web.UI.Page
{
protected void check_Click(object sender, EventArgs e)
{
string num = getnum.Text;
if (IsPalindrome(num))
{
lbldisplay.Text = num + " is a palindrome.";
}
else
{
lbldisplay.Text = num + " is not a palindrome.";
}
}
private bool IsPalindrome(string num)
{
int i = 0;
int j = num.Length - 1;
while (i < j)
{
if (num[i] != num[j])
{
return false;
}
i++;
j--;
}
return true;
}
}
Slip 13) A) Write a java program to display name of currently executing Thread in
multithreading.
public class ThreadNameDisplay {
public static void main(String[] args) {
Thread thread1 = new Thread(new MyRunnable(), "Thread 1");
Thread thread2 = new Thread(new MyRunnable(), "Thread 2");
thread1.start();
thread2.start();
}
static class MyRunnable implements Runnable {
public void run() {
System.out.println("Currently executing thread: " + Thread.currentThread().getName());
}
}
}
B) Write a JSP program to display the details of College (CollegeID, Coll_Name,
Address) in tabular form on browser.
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>College Details</title>
</head>
<body>
<h2>College Details</h2>
<table border="1">
<tr>
<th>College ID</th>
<th>College Name</th>
<th>Address</th>
</tr>
<tr>
<td>1</td>
<td>ABC College</td>
<td>123 Main Street, City, Country</td>
</tr>
<tr>
<td>2</td>
<td>XYZ College</td>
<td>456 Oak Avenue, Town, Country</td>
</tr>
<%-- Add more rows as needed --%>
</table>
</body>
</html>
Slip 13) A)Write a VB.net program for blinking an image.
Public Class Form1
Dim isVisible As Boolean = True
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
' Start the timer when the form loads
Timer1.Start()
End Sub
Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer1.Tick
' Toggle the visibility of the image control
PictureBox1.Visible = isVisible
isVisible = Not isVisible
End Sub
End Class
B) Write a C# Program to accept and display ‘n’ student’s details such as Roll. No,
Name, marks in three subjects, using class. Display percentage of each student.
using System;
class Student
{
public int RollNo { get; set; }
public string Name { get; set; }
public double MarksSubject1 { get; set; }
public double MarksSubject2 { get; set; }
public double MarksSubject3 { get; set; }
public double CalculatePercentage()
{
return (MarksSubject1 + MarksSubject2 + MarksSubject3) / 3;
}
}
class Program
{
static void Main(string[] args)
{
Console.WriteLine("Enter the number of students:");
int n = Convert.ToInt32(Console.ReadLine());
Student[] students = new Student[n];
for (int i = 0; i < n; i++)
{
Console.WriteLine($"\nEnter details for Student {i + 1}:");
students[i] = new Student();
students[i].RollNo = Convert.ToInt32(Console.ReadLine());
students[i].Name = Console.ReadLine();
students[i].MarksSubject1 = Convert.ToDouble(Console.ReadLine());
students[i].MarksSubject2 = Convert.ToDouble(Console.ReadLine());
students[i].MarksSubject3 = Convert.ToDouble(Console.ReadLine());
}
Console.WriteLine("\nStudent Details:");
foreach (var student in students)
{
Console.WriteLine($"\nRoll No: {student.RollNo}");
Console.WriteLine($"Name: {student.Name}");
Console.WriteLine($"Percentage: {student.CalculatePercentage():F2}%");
}
}
}
Slip 15) A) Write a java program to display each alphabet after 2 seconds between ‘a’ to ‘z’.
public class AlphabetDisplay {
public static void main(String[] args) {
char currentChar = 'a';
while (currentChar <= 'z') {
System.out.println(currentChar);
try {
Thread.sleep(2000); // 2 seconds delay
} catch (InterruptedException e) {}
currentChar++;
}
}
}
B) Write a Java program to accept the details of Student (RNo, SName, Per, Gender,
Class) and store into the database. (Use appropriate Swing Components and
PreparedStatement Interface).
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.sql.*;
public class StudentDetailsForm extends JFrame {
private JTextField rnoField, snameField, perField, genderField, classField;
private JButton saveButton;
private Connection connection;
public StudentDetailsForm() {
setTitle("Student Details Form");
setSize(400, 300);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setLayout(new GridLayout(6, 2));
JLabel rnoLabel = new JLabel("Roll Number:");
add(rnoLabel);
rnoField = new JTextField();
add(rnoField);
JLabel snameLabel = new JLabel("Student Name:");
add(snameLabel);
snameField = new JTextField();
add(snameField);
JLabel perLabel = new JLabel("Percentage:");
add(perLabel);
perField = new JTextField();
add(perField);
JLabel genderLabel = new JLabel("Gender:");
add(genderLabel);
genderField = new JTextField();
add(genderField);
JLabel classLabel = new JLabel("Class:");
add(classLabel);
classField = new JTextField();
add(classField);
saveButton = new JButton("Save");
saveButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
saveStudentDetails();
}
});
add(saveButton);
setVisible(true);
connectToDatabase();
}
private void connectToDatabase() {
try {
Class.forName("com.mysql.jdbc.Driver");
connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/your_database_name", "your_username", "your_password");
} catch (Exception ex) {
JOptionPane.showMessageDialog(this, "Failed to connect to the database: " + ex.getMessage(), "Error", JOptionPane.ERROR_MESSAGE);
ex.printStackTrace();
}
}
private void saveStudentDetails() {
try {
String query = "INSERT INTO Students (RNo, SName, Per, Gender, Class) VALUES (?, ?, ?, ?, ?)";
PreparedStatement preparedStatement = connection.prepareStatement(query);
preparedStatement.setString(1, rnoField.getText());
preparedStatement.setString(2, snameField.getText());
preparedStatement.setString(3, perField.getText());
preparedStatement.setString(4, genderField.getText());
preparedStatement.setString(5, classField.getText());
preparedStatement.executeUpdate();
JOptionPane.showMessageDialog(this, "Student details saved successfully!");
preparedStatement.close();
} catch (SQLException ex) {
JOptionPane.showMessageDialog(this, "Failed to save student details: " + ex.getMessage(), "Error", JOptionPane.ERROR_MESSAGE);
ex.printStackTrace();
}
}
public static void main(String[] args) {
new StudentDetailsForm();
}
}
Slip 15 A) Write ASP.Net application to create a user control that contains a list of colors. Add
a button to the Web Form which when clicked changes the color of the form to the
color selected from the list
B) Write a C#.Net Program to accept and display ‘n’ customer’s details such as
customer_no, Name, address ,itemno, quantity price . Display total price of all item.
using System;
using System.Collections.Generic;
class Customer
{
public int CustomerNo { get; set; }
public string Name { get; set; }
public string Address { get; set; }
public int ItemNo { get; set; }
public int Quantity { get; set; }
public double Price { get; set; }
public double CalculateTotalPrice()
{
return Quantity * Price;
}
}
class Program
{
static void Main(string[] args)
{
Console.WriteLine("Enter the number of customers:");
int n = Convert.ToInt32(Console.ReadLine());
List<Customer> customers = new List<Customer>();
for (int i = 0; i < n; i++)
{
Console.WriteLine($"\nEnter details for Customer {i + 1}:");
Customer customer = new Customer();
Console.Write("Customer No: ");
customer.CustomerNo = Convert.ToInt32(Console.ReadLine());
Console.Write("Name: ");
customer.Name = Console.ReadLine();
Console.Write("Address: ");
customer.Address = Console.ReadLine();
Console.Write("Item No: ");
customer.ItemNo = Convert.ToInt32(Console.ReadLine());
Console.Write("Quantity: ");
customer.Quantity = Convert.ToInt32(Console.ReadLine());
Console.Write("Price: ");
customer.Price = Convert.ToDouble(Console.ReadLine());
customers.Add(customer);
}
double total = 0;
Console.WriteLine("\nCustomer Details:");
foreach (var customer in customers)
{
Console.WriteLine($"\nCustomer No: {customer.CustomerNo}");
Console.WriteLine($"Name: {customer.Name}");
Console.WriteLine($"Address: {customer.Address}");
Console.WriteLine($"Item No: {customer.ItemNo}");
Console.WriteLine($"Quantity: {customer.Quantity}");
Console.WriteLine($"Price: {customer.Price:C}");
Console.WriteLine($"Total Price: {customer.CalculateTotalPrice():C}");
total += customer.CalculateTotalPrice();
}
Console.WriteLine($"\nTotal Price of all items: {total:C}");
}
}
Slip 30) A)Write a JSP script to accept a String from a user and display it in reverse order.
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Reverse String</title>
</head>
<body>
<h2>Reverse String</h2>
<form action="reverse.jsp" method="post">
Enter a String: <input type="text" name="inputString"><br>
<input type="submit" value="Reverse">
</form>
<%-- Reverse string logic --%>
<%
String inputString = request.getParameter("inputString");
if (inputString != null && !inputString.isEmpty()) {
String reversedString = new StringBuilder(inputString).reverse().toString();
%>
<p>Reversed String: <%= reversedString %></p>
<%
}
%>
</body>
</html>
B) Write a java program in multithreading using applet for moving car.
import java.applet.*;
import java.awt.*;
public class MovingCar extends Applet implements Runnable {
private int x = 0;
private int y = 100;
private Thread thread;
public void init() {
setSize(400, 300);
}
public void start() {
if (thread == null) {
thread = new Thread(this);
thread.start();
}
}
public void stop() {
if (thread != null) {
thread.stop();
thread = null;
}
}
public void run() {
while (true) {
x += 5; // Move car horizontally
if (x > getWidth()) {
x = -50; // Reset car position when it goes out of bounds
}
repaint();
try {
Thread.sleep(100); // Adjust speed of car
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
public void paint(Graphics g) {
super.paint(g);
g.setColor(Color.red);
g.fillRect(x, y, 50, 30); // Car body
g.setColor(Color.blue);
g.fillOval(x + 10, y + 25, 10, 10); // Left wheel
g.fillOval(x + 30, y + 25, 10, 10); // Right wheel
}
}
Slip 30)
B) Write a VB.NET program to accept the details Supplier (SupId, SupName, Phone
No, Address) store it into the database and display it.
Imports System.Data.SqlClient
Public Class Form1
Private connectionString As String = "Data Source=Your_Server;Initial Catalog=Your_Database;Integrated Security=True"
Private Sub btnSave_Click(sender As Object, e As EventArgs) Handles btnSave.Click
Dim supId As Integer = Integer.Parse(txtSupId.Text)
Dim supName As String = txtSupName.Text
Dim phoneNo As String = txtPhoneNo.Text
Dim address As String = txtAddress.Text
Dim query As String = "INSERT INTO Supplier (SupId, SupName, PhoneNo, Address) VALUES (@SupId, @SupName, @PhoneNo, @Address)"
Using connection As New SqlConnection(connectionString)
Using command As New SqlCommand(query, connection)
command.Parameters.AddWithValue("@SupId", supId)
command.Parameters.AddWithValue("@SupName", supName)
command.Parameters.AddWithValue("@PhoneNo", phoneNo)
command.Parameters.AddWithValue("@Address", address)
connection.Open()
command.ExecuteNonQuery()
End Using
End Using
MessageBox.Show("Supplier details saved successfully.")
End Sub
Private Sub btnDisplay_Click(sender As Object, e As EventArgs) Handles btnDisplay.Click
Dim query As String = "SELECT * FROM Supplier"
Using connection As New SqlConnection(connectionString)
Using command As New SqlCommand(query, connection)
connection.Open()
Using reader As SqlDataReader = command.ExecuteReader()
While reader.Read()
Dim supId As Integer = Convert.ToInt32(reader("SupId"))
Dim supName As String = reader("SupName").ToString()
Dim phoneNo As String = reader("PhoneNo").ToString()
Dim address As String = reader("Address").ToString()
MessageBox.Show($"Supplier ID: {supId}, Name: {supName}, Phone No: {phoneNo}, Address: {address}")
End While
End Using
End Using
End Using
End Sub
End Class