if (array.length % 2 == 0) { Arrays.fill (array, 0, array.length / 2, valueStart); Arrays.fill (array, array.length / 2, array.length, valueEnd ); } if (array.length % 2 != 0) { Arrays.fill ( array, 0, array.length / 2 + 2, valueStart ); Arrays.fill ( array, array.length / 2 + 2, array.length, valueEnd ); }