Merge Two Sorted Array

Program to Sort two array and Merging of these two sorted array

Merge Sorted Array

using System;
using System.Text;

namespace ProblemPractice
{
    class Program2
    {
        //Merge Sorted Array
        public static void Main(String[] args)
        {
            int[] a, b, c;

            a = new int[] { 2,1,8,5,3,7 };
            b = new int[] { 6, 9, 0, 4, 15, 11 };
            Array.Sort(a);
            Array.Sort(b);
            c = MergeArray(a, b);
            int clen = c.Length;

            Console.WriteLine("Sorted and Merged Array:");
            for (int i = 0; i < clen; i++)
            {
                Console.Write(c[i] + " ");
            }
            Console.ReadKey();
        }

        private static int[] MergeArray(int[] a, int[] b)
        {
            int alen, blen, m, n, i;
            m = a.Length;
            n = b.Length;
            int[] c = new int[m + n];
            alen = 0;
            blen = 0;

            for (i = 0; i < Math.Min(m, n); i++)
            {
                if (a[alen] <= b[blen])
                {
                    c[i] = a[alen++];
                }
                else
                {
                    c[i] = b[blen++];
                }
            }

            while (m > alen)
            {
                c[i++] = a[alen++];
            }
            while (n > blen)
            {
                c[i++] = b[blen++];
            }
            return c;
        }
    }
}