How to create 2-tuple or pair tuple in C#?

The Tuple<T1, T2> class represents a 2-tuple, which is called pair. A tuple is a data structure that has a sequence of elements.

Example

Let us now see an example to implement the 2-tuple in C# −

using System; public class Demo {    public static void Main(string[] args) {       Tuple<string,string> tuple = new Tuple<string,string>("jack", "steve");       Console.WriteLine("Value = " + tuple.Item1);       if (tuple.Item1 == "jack") {          Console.WriteLine("Exists: Tuple Value = " +tuple.Item1);       }       if (tuple.Item2 == "david") {          Console.WriteLine("Exists: Tuple Value = " +tuple.Item2);       }    } }

Output

This will produce the following output −

Value = jack Exists: Tuple Value = jack

Example

Let us now see another example to implement the 2-tuple in C# −

using System; public class Demo {    public static void Main(string[] args) {       Tuple tuple = new Tuple(20, "steve");       Console.WriteLine("Value = " + tuple.Item1);       if (tuple.Item1 == 20) {          Console.WriteLine("Exists: Tuple Value = " +tuple.Item1);       }       if (tuple.Item2 == "david") {          Console.WriteLine("Exists: Tuple Value = " +tuple.Item2);       }    } }

Output

This will produce the following output −

Value = 20 Exists: Tuple Value = 20