Object prev = arrays[index / individualSize][index % individualSize]; arrays[index / individualSize][index % individualSize] = arg1;
int i1 = index / individualSize; int i2 = index % individualSize; if (arrays[i1] == null) return null; Object prev = arrays[i1][i2]; arrays[i1][i2] = arg1;
	public Object set(int index, Object arg1) {		Object prev = arrays[index / individualSize][index % individualSize];		arrays[index / individualSize][index % individualSize] = arg1;		return prev;	}