Parts 15 Common Operators

Assignment Operator =
Arithmetic Operators like +,-,*,/,% 
Comparison Operators like ==, !=,>, >=, <, <= 
Conditional Operators like &&, ||
Ternary Operator ?:
Null Coalescing Operator ?? 

Example: -

  public class Program
    {
        public static void Main(string[] args)
        {
            // Assignment Operator 
            int i = 10;
            bool b = true;

            // For dividing 2 numbers 
            // % or / operators
            int num = 10;
            int num2 = 2;

            // Arithmentic operator / returns quotient
            int quotient = num / num2;
            Console.WriteLine("Quotient = {0}", quotient);

            // Arithmentic operator % returns remainder
            int remainder = num % num2;
            Console.WriteLine("Remainder = {0}", remainder);

            // To compare if 2 numbers are
            // equal use comparison operator ==
            int number = 10;
            if (number == 10)
            {
                Console.WriteLine("Number is equal to 10");
            }

            // To compare if 2 numbers are not
            // equal use comparison operator !=
            if (number != 5)
            {
                Console.WriteLine("Number is not equal to 5");
            }

            // When && operator is used all the conditions must
            // be true for the code in the "if" block to be executed
            int number1 = 20;
            int number2 = 24;

            if (number1 == 20 && number2 == 24)
            {
                Console.WriteLine("Both conditions are true");
            }

            // When || operator is used the code in the "if" block
            // is excuted if any one of the condition is true
            number1 = 16;
            number2 = 24;

            if (number1 == 10 || number2 == 20)
            {
                Console.WriteLine("Atleast one of the condition is true");
            }
            Console.ReadLine();
        }

    }