
You hav asked "have u used "post" method"
import java.io.IOException; import java.io.PrintWriter;
import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse;
public class PatternExample extends javax.servlet.http.HttpServlet implements javax.servlet.Servlet { /** * */ private static final long serialVersionUID = 1L;
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
{
response.setContentType("text/html");
PrintWriter out=response.getWriter();
String number1=request.getParameter("num1");
String number2=request.getParameter("num2");
int n1=Integer.parseInt(number1);
int n2=Integer.parseInt(number2);
for(int i=n1;i<=n2;i++)
{
for(int j=n1;j<i+1;j++)
{
out.print(j);
}
out.println("<br>");
}
}
}
this is the servlet and;
<form method="post" action="/PatternExample"> Enter start: <input type="text" name="num1"><br> Enter end : <input type="text" name="num2"><br> <input type="submit" value="Submit" onclick="PatternExample.java"> </form>
this is jsp file and i think both contain POST method so i guess it contains post method~!!!!!

Make changes in PatternExample.java:
import java.io.*;
import java.sql.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class PatternExample extends javax.servlet.http.HttpServlet implements javax.servlet.Servlet {
public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter out=response.getWriter();
String number1=request.getParameter("num1");
String number2=request.getParameter("num2");
int n1=Integer.parseInt(number1);
int n2=Integer.parseInt(number2);
for(int i=n1;i<=n2;i++){
for(int j=n1;j<i+1;j++){
out.print(j);
}
out.println("<br>");
}
}
public void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {
this.doPost(request, response);
}
}
Compile your servlet. Then restart the server and then run the pattern.jsp.
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