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C# | Tuple<T1,T2,T3> Class
  • Last Updated : 02 Dec, 2019

The Tuple<T1, T2, T3> class is used to create a 3-tuple or triple. It represents a tuple which contains the three elements in it. You can instantiate a Tuple<T1, T2, T3> object by calling either the Tuple<T1, T2, T3>(T1, T2, T3) constructor or by the static Tuple.Create method. You can retrieve the value of the tuple’s elements by using the read-only Item1, Item2, and Item3 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

ConstructorDescription
Tuple<T1, T2, T3>(T1, T2, T3)Initializes a new instance of the Tuple<T1, T2, T3> class.

Property

PropertyDescription
Item1Gets the value of the Tuple<T1, T2, T3> object’s first component.
Item2Gets the value of the current Tuple<T1, T2, T3> object’s second component.
Item3Gets the value of the current Tuple<T1, T2, T3> object’s third component.

Example:




// C# progtam to illustrate the constructor
// and property of Tuple<T1, T2, T3> Class
using System;
  
class GFG {
  
    static public void Main()
    {
        // Creating 3-Tuple
        // Using Tuple<T1, T2, T3>(T1,
        // T2, T3) constructor
        Tuple<int, int, int> mytuple = new Tuple<int, int, int>(79, 34, 67);
  
        // Accessing the values
        Console.WriteLine("Value of the First Component: " + mytuple.Item1);
        Console.WriteLine("Value of the Second Component: " + mytuple.Item2);
        Console.WriteLine("Value of the Third Component: " + mytuple.Item3);
  
    }
}
Output:
Value of the First Component: 79
Value of the Second Component: 34
Value of the Third Component: 67

Methods

MethodDescription
Equals(Object)Returns a value that indicates whether the current Tuple<T1, T2, T3> object is equal to a specified object.
GetHashCode()Returns the hash code for the current Tuple<T1, T2, T3> 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, T2, T3> instance.

Example:






// C# program to check whether the
// given tuples are equal or not
using System;
  
class GFG {
  
    // Main method
    static public void Main()
    {
  
        // Creating 3-Tuple
        // Using Tuple<T1, T2, T3>(T1, T2, T3) constructor
        Tuple<int, int, int> mytuple1 = new Tuple<int, int, int>(20, 40, 90);
        Tuple<int, int, int> mytuple2 = new Tuple<int, int, int>(20, 49, 87);
  
        // Using Equals method
        if (mytuple1.Equals(mytuple2)) 
        {
            Console.WriteLine("Tuple Matched..");
        }
  
        else 
        {
            Console.WriteLine("Tuple not matched..");
        }
    }
}
Output:
Tuple not matched..

Reference:

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