Creating a method arrayModifier(int[] a) which takes an integer array of length n, where n > 5.  The method returns an integer array of length 10 where the first 1/2 of the array contains elements from the start of the input array and the second 1/2 of the array contains elements from the end of the input array.
I'm not 100% sure how to start any help would be great !

My test case:

   int[] a = {4, 5, 6, 7, 8, 9};
   System.out.println(Arrays.toString(arrayModifier(a)))

output:

   [4, 5, 6, 7, 8, 5, 6, 7, 8, 9]

Another test case:

   int[] a = {23, 43, 23, 56, 78, 95, 67, 24, 15, 28, 37, 48, 66};
   System.out.println(Arrays.toString(arrayModifier(a)))

output:

   [23, 43, 23, 56, 78, 15, 28, 37, 48, 66]


Code:

public static int[] arrayModifier(int[] a) {
    int ctr = 0;
    int i=0;
    for(int i = 0;i<a.length;i++){
        {
            if(a[i] >= 5) {
                a[i] = a[10];
                ctr ++;
            }
        }
    return ctr;
 }
}