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Servlet Hello World Example using annotation.

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
 * This servlet program is used to print "Hello World" on 
 * client browser using annotations.
public class ServletAnnotationExample extends HttpServlet {
    private static final long serialVersionUID = 1L;
   //no-argument constructor
    public ServletAnnotationExample() {
    protected void doGet(HttpServletRequest request, 
	   HttpServletResponse response)
	              throws ServletException, IOException {
    	PrintWriter out = response.getWriter();
    	out.print("<h1>Hello World example using annotations.</h1>");


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