Java code
writing code<form action="login" method="post">
Username: <input type="text" name="username"><br>
Password: <input type="password" name="password"><br>
<input type="submit" value="Login">
</form>
..................
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;@WebServlet("/login")
public class LoginServlet extends HttpServlet {
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {String username = request.getParameter("username");
String password = request.getParameter("password");response.setContentType("text/html");
if ("admin".equals(username) && "password123".equals(password)) {
response.getWriter().println("Hello " + username);
} else {
response.getWriter().println("Login Failed");
}
}
}

Java code
writing code<form action="login" method="post">
Username: <input type="text" name="username"><br>
Password: <input type="password" name="password"><br>
<input type="submit" value="Login">
</form>
..................
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;@WebServlet("/login")
public class LoginServlet extends HttpServlet {
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {String username = request.getParameter("username");
String password = request.getParameter("password");response.setContentType("text/html");
if ("admin".equals(username) && "password123".equals(password)) {
response.getWriter().println("Hello " + username);
} else {
response.getWriter().println("Login Failed");
}
}
}AWP run
1...,.................
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;namespace ConsoleApp2
{
internal class Program
{
static void Main(string[] args)
{
int num1, num2, num3, num4, product;// Input from user
Console.WriteLine("Enter first number:");
num1 = Convert.ToInt32(Console.ReadLine());Console.WriteLine("Enter second number:");
num2 = Convert.ToInt32(Console.ReadLine());Console.WriteLine("Enter third number:");
num3 = Convert.ToInt32(Console.ReadLine());Console.WriteLine("Enter fourth number:");
num4 = Convert.ToInt32(Console.ReadLine());// Calculate the product
product = num1 * num2 * num3 * num4;
Console.WriteLine("The product of the four numbers is: " + product);
Console.ReadKey();
}
}
}2...........using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;namespace ConsoleApp2
{
internal class Program
{
static void Main(string[] args)
{
String[] str = { "shield", "hhgd", "sjdhh" };
foreach (String s in str)
{
Console.WriteLine(s);
}Console.ReadKey();
}
}
}
,