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C# | Tuple<T1> Class

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The Tuple<T1> class is used to create 1-tuple or singleton which contains only a single element in it. You can instantiate a Tuple <T1> object by calling either the Tuple<T1> constructor or by the static Tuple.Create method. You can retrieve the value of the tuple’s single element by using the read-only Item1 instance property. Important Points:
  • It implements IStructuralComparable, IStructuralEquatable, and IComparable interface.
  • It defined under System namespace.
  • It represent multiple data into a single data set.
  • It allows us to create, manipulate, and access data set.
  • It returns multiple values from a method without using out parameter.
  • It allows passing multiple values to a method with the help of single parameters.
  • It can also store duplicate elements.

Constructor

Constructor Description
Tuple<T1>(T1) Initializes a new instance of the Tuple<T1> class.

Property

Property Description
Item1 Gets the value of the Tuple<T1> object’s single element.
Example:
// C# program to illustrate the constructor 
// and property of class Tuple<T1>
using System;
  
class GFG {
  
    // Main method
    static public void Main()
    {
  
        // Creating 1-Tuple
        // Using Tuple<T1>(T1)
        Tuple<int> mytuple = new Tuple<int>(22);
  
        // Accessing the values
        Console.WriteLine("Value of the Element is: " + mytuple.Item1);
    }
}

                    
Output:
Value of the Element is: 22

Methods

Method Description
Equals(Object) Returns a value that indicates whether the current Tuple<T1> object is equal to a specified object.
GetHashCode() Returns the hash code for the current Tuple<T1> object.
GetType() Gets the Type of the current instance.
MemberwiseClone() Creates a shallow copy of the current Object.
ToString() Returns a string that represents the value of this Tuple<T1> instance.
Example:
// C# program to determine the 
// given tuples are equal or not
using System;
  
class GFG {
  
    // Main method
    static public void Main()
    {
  
        // Creating 1-Tuple
        // Using Tuple<T1>(T1)
        Tuple<int> mytuple1 = new Tuple<int>(22);
        Tuple<int> mytuple2 = new Tuple<int>(22);
  
        // Using Equals method
        if (mytuple1.Equals(mytuple2))
        {
            Console.WriteLine("Tuple Matched..");
        }
  
        else
        {
            Console.WriteLine("Tuple not matched..");
        }
    }
}

                    
Output:
Tuple Matched..
Reference:

Last Updated : 02 Dec, 2019
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