C# Input and print an integer number

Syntax to convert string formatted value to an integer:

    integer_variable = Convert.ToInt32(Console.ReadLine());

Program:

/*C# program to input and print an integer number*/
using System;
class ReadIntExample {
    static void Main() {
        //declare an integer variable
        int num = 0;
        //prompt message to take input
        Console.Write("Input an integer value: ");
        num = Convert.ToInt32(Console.ReadLine());
        //print the value
        Console.WriteLine("num = " + num);
    }
}

Output

Input an integer value: 200
num = 200

Program:

using System;
class ReadIntExample {
    static void Main() {
        try{
            //declare an integer variable
            int num = 0;
            //prompt message to take input
            Console.Write("Input an integer value: ");
            num = Convert.ToInt32(Console.ReadLine());
            //print the value
            Console.WriteLine("num = " + num);
        }
        catch(Exception ex){
            Console.WriteLine("Error: " + ex.ToString());
        }
    }
}

Output (when the input value is an integer)

Input an integer value: 200
num = 200

Output (when input value is a string)

Input an integer value: Hello
Error: System.FormatException: Input string was not in the correct format
  at System.Int32.Parse (System.String s) [0x00000] in 
  <filename unknown>:0
  at System.Convert.ToInt32 (System.String value) [0x00000] 
  in <filename unknown>:0
  at ReadIntExample.Main () [0x00000] 
  in <filename unknown>:0