How to check if array is already sorted

Question

so how to make such logic

int[] arr = {2, 5, 3};

if (/* arr is sorted */)
    ....
else 
    ...

Its bad that method Array.sort is void

Answer 1

public static boolean isSorted(int[] arr) {
    for (int i = 0; i < arr.length - 1; i++) {
        if (a[i + 1] < a[i]) {
            return false;
        };
    }
    return true;
}