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FormData.java
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import java.io.IOException;
import java.io.PrintWriter;
import jakarta.servlet.ServletException;
import jakarta.servlet.annotation.WebServlet;
import jakarta.servlet.http.HttpServlet;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
@WebServlet("/FormData")
public class FormData extends HttpServlet {
private static final long serialVersionUID = 1L;
// Auto-generated constructor stub
public FormData() {
super();
}
// HttpServlet doPost(HttpServletRequest request, HttpServletResponse response) method
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// Get the values from the request using 'getParameter'
String name = request.getParameter("name");
String phNum = request.getParameter("phone");
String gender = request.getParameter("gender");
if (phNum.matches("[0-9]+") && phNum.length() > 2){
// To get all the values selected for
// programming language, use 'getParameterValues'
String progLang[] = request.getParameterValues("language");
// Iterate through the String array to
// store the selected values in form of String
String langSelect = "";
if(progLang!=null){
for(int i=0;i<progLang.length;i++){
langSelect= langSelect + progLang[i]+ ", ";
}
}
String courseDur = request.getParameter("duration");
String comment = request.getParameter("comment");
// set the content type of response to 'text/html'
response.setContentType("text/html");
// Get the PrintWriter object to write
// the response to the text-output stream
PrintWriter out = response.getWriter();
// Print the data
out.print("<html><body >");
out.print("<h3>Details Entered</h3><br/>");
out.print("Full Name: "+ name + "<br/>");
out.print("Phone Number: "+ phNum +"<br/>");
out.print("Gender: "+ gender +"<br/>");
out.print("Programming languages selected: "+ langSelect +"<br/>");
out.print("Duration of course: "+ courseDur+"<br/>");
out.print("Comments: "+ comment);
out.print("</body></html>");
}
else
{
PrintWriter out = response.getWriter();
out.print("Phone Number Must contain only digits");
}
}
}