question: public static String fetchPin ( String body ) { int i = START_INDEX ; while ( i < body . length ( ) ) { if ( body . charAt ( i ) == BODY_SEPARATOR ) { return body . substring ( START_INDEX , i ) ; } i ++ ; } return body . substring ( START_INDEX , i ) ; }
target:  Efficient split method (instead of String.split). Returns pin from hardware body. For instance "aw 11 32" - is body. Where 11 is pin Number.