Java integers are stored in 32 bits, so each vector register can hold eight Java integers (ints). The JIT will generate code to load values from the array in groups of eight.

What’s the difference between Java array size vs length? ... Classes including Vector, Stack and ArrayList all have a size method. So to get the size of an ArrayList, you call its size method. However ...

Loops vs Java’s Vector API. With this eight-element array, we end up with only three addition operations on the Vector to calculate the prefix sum. That’s a significant improvement on the eight ...