poker - Exception in thread "main" java.util.NoSuchElementException Scanner error -

i getting error , cannot figure out how fix it. class tutor couldn't figure out. poker program deals out hand, allows user replace 4 cards, , analyzes it. designed allow user play many hands want, scanner input decides if play or not isn't working , can't figure out why.

here main code

import java.util.*; public class poker {     public static void main(string[] args)     {         string game = "continue";         run runpoker = new run();          system.out.println("enter 2 play hand or 1 quit game: ");         while (game == "continue")         {             game = ((run)runpoker).playhand();//this line 18          }      } } 

here method playhand calling, real main code

import java.util.scanner; public class run  {     public string playhand()     {         int r = 1;         int limit = 0;          // create new, shuffled deck         deck d = new deck();         hand h = d.deal();         h.sort();         system.out.println(h);         system.out.println("which cards replace, 4");         system.out.println("enter 0 when finished");         scanner in = new scanner(system.in);         r = in.nextint();         while (r > 0 && r < 6 && limit < 4)         {             if (r > 0)                 h.replace(d, r - 1);             limit++;             r = in.nextint();         }         h.sort();         system.out.println(h);          string result = h.analyze();         system.out.println(result);         string answer;         system.out.println("would play again? enter 'continue' play again or 'quit' stop playing: ");         in.close();         scanner input = new scanner(system.in);         answer = input.nextline();//this line 34         input.close();         return answer;     } } 

there other classes shouldn't affect scanner. here error

   exception in thread "main" java.util.nosuchelementexception: no line found         @ java.util.scanner.nextline(unknown source)         @ run.playhand(run.java:34)         @ poker.main(poker.java:18) 

the intial carriage return pressed after

system.out.println("enter 2 play hand or 1 quit game: "); while ((game = scan.nextint()) == 2) 

is never consumed , still on input when playhand called.

so before calling playhand call scan.nextline();