C# 7.0 Tuple example program

A program can return more than one value from a method from C#7.0.

Example 1: 
class Program
    {
        public (int Sum, int Product) Calc(int val1, int val2)
        {
            int val3 = val1 + val2;
            int val4 = val1 * val2;
            return (val3, val4);
        }
        static void Main()
        {
            Program P = new Program();
            var (Sum_Result, Product_Result) = P.Calc(100, 50);
            Console.WriteLine("Sum: " + Sum_Result);
            Console.WriteLine("Product: " + Product_Result);
            Console.Read();
        }
    }

Output:
Sum: 150
Product: 5000

If you notice val3 and val4 of type integer has been returned from Calc method

In the Main method we've captured val3 and val4 values into Sum_Result and Product_Result and printed them as well. .

Example 2:
class Program
{
        public (int Sum, int Product) Calc(int val1, int val2)
        {
            int val3 = val1 + val2;
            int val4 = val1 * val2;
            return (val3, val4);
        }
        static void Main()
        {
            Program P = new Program();
            var var_obj = P.Calc(100, 50);
            Console.WriteLine("Sum: " + var_obj.Sum);
            Console.WriteLine("Product: " + var_obj.Product);
            Console.Read();
        }
 }
Output:
Sum: 150
Product: 5000

In the above example we have created a var obj by name var_obj which calls Calc method using object(P) of the class Program and passed two integer values as well.

Then printed two values using var_obj.