public void getVarConfigAsArray ( int configIndex , int [ ] putInto ) { if ( putInto . length != this . size ( ) ) throw new IllegalArgumentException ( ) ; int i = putInto . length - 1 ; for ( int v = this . size ( ) - 1 ; v >= 0 ; v -- ) { Var var = this . get ( v ) ; putInto [ i -- ] = configIndex % var . getNumStates ( ) ; configIndex /= var . getNumStates ( ) ; } }
this is the no - allocation version of the non - void method of the same name .