Servlet program to read username and print

Java Program8:
A program to display greeting message on the browser “Hello UserName”, “How Are You?”, accept username
from the client using servlet.
UserForm.html
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Greeting Servlet</title>
</head>
<body>
<form action="Greetings" method="post">
Enter Username: <input type="text" name="username"/>
<input type="submit" value="submit"/>
</form>
</body>
</html>
Greetings.java
import jakarta.servlet.ServletException;
import jakarta.servlet.annotation.WebServlet;
import jakarta.servlet.http.HttpServlet;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
/**
* Servlet implementation class Greetings
*/
public class Greetings extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/

public Greetings() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request,
HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request,
HttpServletResponse response) throws ServletException,
IOException {
// TODO Auto-generated method stub
response.getWriter().append("Served at:
").append(request.getContextPath());
}
/**
* @see HttpServlet#doPost(HttpServletRequest request,
HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request,
HttpServletResponse response) throws ServletException,
IOException {
// TODO Auto-generated method stub
String username=request.getParameter("username");
response.setContentType("text/html");
PrintWriter out=response.getWriter();
//out.println("html");
out.println("<head>");
out.println("<title> Greeting Reponse</title>");
out.println("</head>");
out.println("<body>");
out.println("<h1>Hello,"+username+"</h1> How
are you?");
out.println("</body>");
//out.println("</html>");
}}

Web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-
instance" xmlns="https://jakarta.ee/xml/ns/jakartaee"
xsi:schemaLocation="https://jakarta.ee/xml/ns/jakartaee
https://jakarta.ee/xml/ns/jakartaee/web-app_5_0.xsd"
version="5.0">
<servlet>
<description></description>
<display-name>Greetings</display-name>
<servlet-name>Greetings</servlet-name>
<servlet-class>Greetings</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Greetings</servlet-name>
<url-pattern>/Greetings</url-pattern>
</servlet-mapping>
</web-app>

Servlet program to read username and print

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Servlet program to read username and print