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C# program to list the difference between two lists
To get the difference between two lists, firstly set two lists in C# −
// first list
List < string > list1 = new List < string > ();
list1.Add("A");
list1.Add("B");
list1.Add("C");
list1.Add("D");
// second list
List < string > list2 = new List < string > ();
list2.Add("C");
list2.Add("D");
foreach(string value in list2) {
Console.WriteLine(value);
}To get the difference, use IEnumerable and Except() as shown below. The difference is shown in the third list −
IEnumerable < string > list3; list3 = list1.Except(list2);
The following is the complete code −
Example
using System;
using System.Collections.Generic;
using System.Linq;
public class Demo {
public static void Main() {
List < string > list1 = new List < string > ();
list1.Add("A");
list1.Add("B");
list1.Add("C");
list1.Add("D");
Console.WriteLine("First list...");
foreach(string value in list1) {
Console.WriteLine(value);
}
Console.WriteLine("Second list...");
List < string > list2 = new List < string > ();
list2.Add("C");
list2.Add("D");
foreach(string value in list2) {
Console.WriteLine(value);
}
Console.WriteLine("Difference in the two lists...");
IEnumerable < string > list3;
list3 = list1.Except(list2);
foreach(string value in list3) {
Console.WriteLine(value);
}
}
}Output
First list... A B C D Second list... C D Difference in the two lists... A B
Published on 21-Aug-2018 13:18:19
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