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Tuple Class in C#
The Tuple<T1,T2,T3,T4> class represents a 4-tuple, which is called quadruple. A tuple is a data structure that has sequence of elements.
It is used in −
- Easier access to a data set.
- Easier manipulation of a data set.
- To represent a single set of data.
- To return multiple values from a method
- To pass multiple values to a method
It has four properties −
Item1 − Get the value of the current Tuple<T1,T2,T3,T4> object's first component.
Item2 − Get the value of the current Tuple<T1,T2,T3,T4> object's second component.
Item3 − Get the value of the current Tuple<T1,T2,T3,T4> object's third component.
Item4 − Get the value of the current Tuple<T1,T2,T3,T4> object's fourth component.
Example
Let us now see an example to implement the 4-tuple in C# −
using System; public class Demo { public static void Main(string[] args) { Tuple<string,string,string,string> tuple = new Tuple<string,string,string,string>("nathan", "steve", "katie", "tim"); Console.WriteLine("Value (Item1)= " + tuple.Item1); Console.WriteLine("Value (Item2)= " + tuple.Item2); Console.WriteLine("Value (Item3)= " + tuple.Item3); Console.WriteLine("Value (Item4)= " + tuple.Item4); if (tuple.Item1 == "nathan") { Console.WriteLine("Exists: Tuple Value = " +tuple.Item1); } if (tuple.Item2 == "jack") { Console.WriteLine("Exists: Tuple Value = " +tuple.Item2); } if (tuple.Item3 == "katie") { Console.WriteLine("Exists: Tuple Value = " +tuple.Item3); } if (tuple.Item4 == "tom") { Console.WriteLine("Exists: Tuple Value = " +tuple.Item4); } } }
Output
This will produce the following output −
Value (Item1)= nathan Value (Item2)= steve Value (Item3)= katie Value Value (Item4)= tom Exists: Tuple Value = nathan Exists: Tuple Value = katie
Example
Let us now see another example to implement the 4-tuple in C# −
using System; public class Demo { public static void Main(string[] args) { Tuple<int,int,int,int> tuple = new Tuple<int,int,int,int>(100, 150, 300, 450); Console.WriteLine("Value (Item1)= " + tuple.Item1); Console.WriteLine("Value (Item2)= " + tuple.Item2); Console.WriteLine("Value (Item3)= " + tuple.Item3); Console.WriteLine("Value (Item4)= " + tuple.Item4); if (tuple.Item1 == 100) { Console.WriteLine("Exists: Tuple Item 1 = " +tuple.Item1); } if (tuple.Item2 == 250) { Console.WriteLine("Exists: Tuple Item 2 = " +tuple.Item2); } if (tuple.Item3 == 270) { Console.WriteLine("Exists: Tuple Item 3 = " +tuple.Item3); } if (tuple.Item4 == 300) { Console.WriteLine("Exists: Tuple Item 4 = " +tuple.Item4); } } }
Output
This will produce the following output −
Value (Item1)= 100 Value (Item2)= 150 Value (Item3)= 300 Value (Item4)= 450 Exists: Tuple Item 1 = 100
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