comefrom: <gouthampradhan>string_ImplementStrStr_1.java
code: private boolean isEqual(String haystack, String needle, int i) {
      int hL = haystack.length();
      int nL = needle.length();
      int j = 0;
      while (i < hL && j < nL) {
        if (haystack.charAt(i) != needle.charAt(j)) return false;
        i++;
        j++;
      }
      return j >= nL;
    }
masked: private boolean var_0 ( String var_2 , String var_3 , int var_4 ) {
    int var_6 = var_2 . length ( ) ;
    int var_7 = var_3 . length ( ) ;
    int var_9 = 0 ;
    while ( var_4 < var_6 && var_9 < var_7 ) {
      if ( var_2 . charAt ( var_4 ) != var_3 . charAt ( var_9 ) ) return false ;
      var_4 ++ ;
      var_9 ++ ;
    }
    return var_9 >= var_7 ;
  }
  