<awangdev>151. Reverse Words in a String_4.java
private void reverse(char[] arr, int i, int j) {

        while (i < j) {
            char temp = arr[i];
            arr[i++] = arr[j];
            arr[j--] = temp;
        }
    }
private void var_0 ( char [ ] var_1 , int var_2 , int var_3 ) {
  while ( var_2 < var_3 ) {
    char var_4 = var_1 [ var_2 ] ;
    var_1 [ var_2 ++ ] = var_1 [ var_3 ] ;
    var_1 [ var_3 -- ] = var_4 ;
  }
}
