C# program to demonstrate an example of a simple if-else statement

Syntax:

    if(test_condition){
     //code section 1
    }
    else{
     //code section 2
    }

C# example for the simple if-else statement:

// C# program to demonstrate example of 
// simple if else statement
using System;
using System.IO;
using System.Text;

namespace JustTechReview
{
    class Test
    {
        // Main Method 
        static void Main(string[] args)
        {
            //example 1: Input age and check it's teenage or not
            int age = 0;
            Console.Write("Enter age: ");
            age = Convert.ToInt32(Console.ReadLine());

            //checking condition
            if (age >= 13 && age <= 19)
                Console.WriteLine("{0} is teenage", age);
            else
                Console.WriteLine("{0} is teenage", age);

            //example 2: Input two integer numbers and check 
            //whether first number is divisible by second or not?
            int a, b;
            Console.Write("Enter first number : ");
            a = Convert.ToInt32(Console.ReadLine());
            Console.Write("Enter second number: ");
            b = Convert.ToInt32(Console.ReadLine());

            //checking condition
            if (a % b == 0)
                Console.WriteLine("{0} is divisible by {1}", a, b);
            else
                Console.WriteLine("{0} is not divisible by {1}", a, b);

            //hit ENTER to exit the program
            Console.ReadLine();
        }
    }
}


Output

Enter age: 17
17 is teenage
Enter first number : 120
Enter second number: 20
120 is divisible by 20