import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class AccountServlet extends HttpServlet {

public void doGet(HttpServletRequest request,HttpServletResponse response)
throws ServletException,IOException {
this.doPost(request,response);

}
public void doPost(HttpServletRequest request,IOException {
String loginname=request.getParameter("loginname");
PrintWriter out = response.getWriter();
if(loginname.equals("abc123")){
out.println("1");
}else{
out.println("0");
}
out.flush();

}

}