How to merge two arrays

using System.Linq;

namespace ConcatTwoArrays
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] front = { 1, 2, 3, 4 };
            int[] back = { 5, 6, 7, 8 };
            int[] combined = front.Concat(back).ToArray();
        }
    }
}