Program:

The source code to get the length of the jagged array using predefine property is given below. The given program is compiled and executed successfully on Microsoft Visual Studio.

//Program to get the length of a jagged 
//array using predefined property in C#.

using System;

class Demo
{
    public static void Main()
    {
        string [][] jagged = new string[5][];
        int loop=0;

        for (loop = 0; loop < jagged.Length; loop++)
        {
            jagged[loop] = new string[loop+2];
        }
        for (loop = 0; loop < jagged.Length; loop++)
        {
            Console.WriteLine("Size of row {0}->{1}", loop, jagged[loop].Length);
        }
    }
}

Output:

Size of row 0->2
Size of row 1->3
Size of row 2->4
Size of row 3->5
Size of row 4->6
Press any key to continue . . .

Explanation:

In the above program, we created a Demo class that contains the Main() method. Here we created a jagged array of strings.

for (loop = 0; loop < jagged.Length; loop++)
{
    jagged[loop] = new string[loop+2];
}

In the above code we created each row of the jagged array with different sizes, and then print the size of each row on the console screen.