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How to perform a specified action on each element of the List in C#?
To perform a specified action on each element of the List, the code is as follows −
Example
using System;
using System.Collections.Generic;
public class Demo {
public static void demo(int s){
s = s * 10;
Console.WriteLine(s);
}
public static void Main(String[] args){
List<int> list = new List<int>();
list.Add(25);
list.Add(50);
list.Add(75);
list.Add(100);
list.Add(200);
list.Add(250);
list.Add(275);
list.Add(300);
Console.WriteLine("List...");
foreach (int i in list){
Console.WriteLine(i);
}
Console.WriteLine("
Updated List...");
list.ForEach(demo);
}
}Output
This will produce the following output −
List... 25 50 75 100 200 250 275 300 Updated List... 250 500 750 1000 2000 2500 2750 3000
Example
Let us now see another example −
using System;
using System.Collections.Generic;
public class Demo {
public static void demo(int s){
s = s - 50;
Console.WriteLine(s);
}
public static void Main(String[] args){
List<int> list = new List<int>();
list.Add(25);
list.Add(50);
list.Add(75);
list.Add(100);
list.Add(200);
list.Add(250);
list.Add(275);
list.Add(300);
Console.WriteLine("List...");
foreach (int i in list){
Console.WriteLine(i);
}
Console.WriteLine("
Updated List...");
list.ForEach(demo);
}
}Output
This will produce the following output −
List... 25 50 75 100 200 250 275 300 Updated List... -25 0 25 50 150 200 225 250
Updated on: 11-Dec-2019
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