import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class One extends HttpServlet {
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
PrintWriter out = response.getWriter();
String message = request.getParameter("message"),
good = request.getParameter("good"),
total = request.getParameter("total"),
n1 = request.getParameter("n1"),
n2 = request.getParameter("n2"), // state is above
answer = request.getParameter("answer"); // input
if (message == null) {
good = "0";
total = "0";
n1 = "" + (int) ((Math.random() * 100) - 50);
n2 = "" + (int) ((Math.random() * 100) - 50);
message = "(" + good + "/" + total + ") What is " +
n1 + " + " + n2 + "? Type your answer here: ";
} else {
int a = Integer.parseInt(n1) + Integer.parseInt(n2);
if (a == Integer.parseInt(answer)) {
good = "" + (Integer.parseInt(good) + 1);
}
total = "" + (Integer.parseInt(total) + 1);
n1 = "" + (int) ((Math.random() * 100) - 50);
n2 = "" + (int) ((Math.random() * 100) - 50);
message = "(" + good + "/" + total + ") What is " +
n1 + " + " + n2 + "? Type your answer here: ";
}
response.setContentType("text/html");
out.println(
"" +
" Lab 04/13 Servlet" +
" " +
" " +
" " +
""
);
}
}