合并多个有序数组

public class JoinArray {
    public static void main(String[] args) {
​
        int[] a1 = {1, 3, 5, 7, 13};
        int[] a2 = {2, 4, 6, 12, 14};
​
        System.out.println(Arrays.toString(sort(a1, a2)));
    }
    public static int[] sort(int[] a, int[] b){
​
        int[] c = new int[a.length + b.length];
        int i = 0, j = 0, k = 0;
        while (i < a.length && j < b.length){
            if (a[i] >= b[j]){
                c[k++] = b[j++];
            }else{
                c[k++] = a[i++];
            }
        }
​
        while (j < b.length){
            c[k++] = b[j++];
        }
​
        while (i < a.length){
            c[k++] = a[i++];
        }
​
        return c;
    }
}