@Override
    public void addStreamOfLiteralWords(Buffer buffer, int start, int number) {
        for(int x = start; x < start + number ; ++x)
           if(buffer.getWord(x)!=0) throw nonEmptyException;
    }
@Override
    public void addStreamOfLiteralWords(Buffer buffer, int start, int number) {
        for(int x = start; x < start + number ; ++x)
           if(buffer.getWord(x)!=0) throw nonEmptyException;
    }
@ Override public void addStreamOfLiteralWords ( Buffer buffer , int start , int number ) { for ( int x = start ; x < start + number ; ++ x ) if ( buffer . getWord ( x ) != 0 ) throw nonEmptyException ; }
throws a NonEmptyException exception when number is greater than 0
throws a NonEmptyException exception when number is greater than 0