question: public float [ ] valueArray ( float [ ] array ) { if ( array == null || array . length != size ( ) ) { array = new float [ count ] ; } System . arraycopy ( values , 0 , array , 0 , count ) ; return array ; }
target:  Fill an already-allocated array with the values (more efficient than creating a new array each time). If 'array' is null, or not the same size as the number of values, a new array will be allocated and returned.