Servlet- Date -- Name of the Day

I would like to write a servlet which accepts any "Date" from the user through a html page and prints the "Name of the Day" like "monday or tuesday...etc".

I am getting with this code can anyone check this pls
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.text.*;
import java.util.*;
public class findday extends HttpServlet {
     public void doGet(HttpServletRequest request,HttpServletResponse response) throws IOException,ServletException {
          response.setContentType("text/html");
          PrintWriter out=response.getWriter();
          final String[] dayNames={"Sunday","Monday","Tuesday","Wednesday","Thrusday","Friday","Saturday"};
          String str=request.getParameter("param1"); //parameter name
          Date dt=DateFormat.parse(str);  //converting string to Date format
          GregorianCalendar calendar= new GregorianCalendar(dt); // creating a new object with the date
          int dayOfWeek=calendar.get(calendar.DAY_OF_WEEK); // finding the day of week
          String dayName=dayNames[dayOfWeek-1]; //converting the day into Name
          out.println("<html>"); //output to browser
          out.println("<body>");
          out.println(dayName);
          out.println("</body>");
          out.println("</html>");
}thank u

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