LeetCode88.java

public class LeetCode88 {
    public static void main(String[] args) {
        int nums1[] = {1,2,3,0,0,0};
        int nums2[] = {2,5,6};
        int m = 3;
        int n = 3;

        mergeArrays(nums1, nums2, m, n);

        //It's just for only to see the printing output
        for(int i = 0; i < m+n; i++) {
            System.out.printf(nums1[i] + " ");
        }
    }

    public static void mergeArrays(int [] nums1, int [] nums2, int m, int n) {
        int i = m - 1;
        int j = n - 1;
        int k = m + n - 1;

        while (j >= 0) {
            if (i >= 0 && nums1[i] > nums2[j]) {
                nums1[k] = nums1[i];
                k--;
                i--;

            } else {
                nums1[k] = nums2[j];
                k--;
                j--;
            }
        }
    }
}