code: public boolean prefers(int x, int y, int[] womanPref, int size) {
  
      for (int i = 0; i < size; i++) {
        int pref = womanPref[i];
        if (pref == x) {
          return true;
        }
        if (pref == y) {
          return false;
        }
      }
      // this should never happen.
      System.out.println("Error in womanPref list!");
      return false;
    }
docs: Returns true in case that a given woman prefers x to y.