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InterviewSolution
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How to intersect two lists in C#? |
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Answer» Two lists can be intersected using the Enumerable.Intersect() method in C#. These methods provide the COMMON elements from both the lists as result. The namespace System.Linq is required for the Enumerable.Intersect() method. A program that demonstrates the intersection of two lists is given as follows: using System; using System.Collections.Generic; using System.Linq; class Demo { public static VOID Main() { List<int> list1 = new List<int>(); list1.Add(7); list1.Add(1); list1.Add(5); list1.Add(9); list1.Add(3); List<int> list2 = new List<int>(); list2.Add(9); list2.Add(6); list2.Add(4); list2.Add(1); list2.Add(7); var intersection = list1.Intersect(list2); Console.WriteLine("The elements in the intersection of the two lists are:"); foreach (int i in intersection) { Console.WriteLine(i); } } }The output of the above program is as follows: The elements in the intersection of the two lists are: 7 1 9 |
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