There are many such use cases where you will find yourself required to compare two arrays in Java.
Remembering a few of the different ways to do so is a tool which should be in any programmers toolbox.
Compare using Java 8
IntStream.range(0, arr.length) .forEach((i) -> arr[i] == b.get(i))
Compare using Java 5+
return Arrays.deepEquals(arr1, arr2);