class Solution {

     public boolean judgeCircle(String moves) {

         int flagRL = 0;

         int flagUD = 0;

         char[] move = moves.toCharArray();

         for (int i = 0; i < move.length; i++ ) {

             switch (move[i]) {

                 case 'L':

                     flagRL ++;

                     break;

                 case 'R':

                     flagRL --;

                     break;

                 case 'U':

                     flagUD ++;

                     break;

                 case 'D':

                     flagUD --;

                     break;

             }

         }

         if (flagRL == 0 && flagUD == 0) {

             return true;

         } else {

             return false;

         }

     }

 }