Program in C# to find sum of all the elements present in a jagged array of 3 inner arrays.

using System;

namespace Lab_Ex_9
{
    class JaggedArrays
    {
        int[][] jagged = new int[3][];

        public void ReadArrays()
        {
            Console.Write("\n Enter the size of First inner array: ");
            jagged[0] = new int[int.Parse(Console.ReadLine())];
            Console.WriteLine("\n Enter the elements of First inner array: ");
            for (int i = 0; i < jagged[0].Length; i++)
                jagged[0][i] = int.Parse(Console.ReadLine());
            Console.Write("\n Enter the size of Second inner array: ");
            jagged[1] = new int[int.Parse(Console.ReadLine())];
            Console.WriteLine("\n Enter the elements of Second inner array: ");
            for (int i = 0; i < jagged[1].Length; i++)
                jagged[1][i] = int.Parse(Console.ReadLine());
            Console.Write("\n Enter the size of Third inner array: ");
            jagged[2] = new int[int.Parse(Console.ReadLine())];
            Console.WriteLine("\n Enter the elements of Third inner array: ");
            for (int i = 0; i < jagged[2].Length; i++)
                jagged[2][i] = int.Parse(Console.ReadLine());
        }
        public void FindSum()
        {
            int sum = 0;
            for (int i = 0; i < jagged[0].Length; i++)
                sum = sum + jagged[0][i];
            for (int i = 0; i < jagged[1].Length; i++)
                sum = sum + jagged[1][i];
            for (int i = 0; i < jagged[2].Length; i++)
                sum = sum + jagged[2][i];
            Console.WriteLine("\n\n\n Sum of all the three inner arrays is = {0}", sum);
        }
        public void PrintArrays()
        {
            Console.Write("\n\n Elements of First inner array: ");
            for (int i = 0; i < jagged[0].Length; i++)
                Console.Write(jagged[0][i] + "\t");
            Console.Write("\n\n Elements of Second inner array: ");
            for (int i = 0; i < jagged[1].Length; i++)
                Console.Write(jagged[1][i] + "\t");
            Console.Write("\n\n Elements of Third inner array: ");
            for (int i = 0; i < jagged[2].Length; i++)
                Console.Write(jagged[2][i] + "\t");
        }

    }

    class ArrayTest
    {
        public static void Main()
        {
            JaggedArrays JA = new JaggedArrays();
            JA.ReadArrays();
            JA.PrintArrays();
            JA.FindSum();
            Console.ReadLine();
        }
    }

}