LINQ vs for loop - CSharp Language Basics

CSharp examples for Language Basics:for

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Description

LINQ vs for loop

Demo Code

using System;//w  w w .j a v a 2s.  c o m
using System.Collections.Generic;
using System.Text;
using System.Linq;
class Program
{
   static void Main(string[] args)
   {
      List<Server> _servers = new List<Server>(){
         new Server() { Name = "Server1", Ram = 8, Status = true, Location = "North America" },
         new Server() { Name = "Server2", Ram = 16, Status = true, Location = "Europe" },
         new Server() { Name = "Server3", Ram = 8, Status = false, Location = "Asia" },
         new Server() { Name = "Server4", Ram = 32, Status = true, Location = "Europe" },
         new Server() { Name = "Server5", Ram = 32, Status = false, Location = "Asia" },
         new Server() { Name = "Server6", Ram = 32, Status = false, Location = "Europe" },
         new Server() { Name = "Server7", Ram = 16, Status = true, Location = "North America" },
         new Server() { Name = "Server8", Ram = 8, Status = false, Location = "North America" },
         new Server() { Name = "Server9", Ram = 16, Status = true, Location = "Asia" },
         new Server() { Name = "Server10", Ram = 8, Status = false, Location = "Europe" },
         new Server() { Name = "Server11", Ram = 32, Status = false, Location = "Asia" },
         new Server() { Name = "Server12", Ram = 16, Status = true, Location = "North America" },
         new Server() { Name = "Server13", Ram = 32, Status = false, Location = "Asia" },
         new Server() { Name = "Server14", Ram = 16, Status = true, Location = "Europe" },
      };
      foreach (var server in _servers)
      {
         if(server.Location == "Asia" && server.Ram > 16 && !server.Status)
         {
            Console.WriteLine(server);
         }
      }
      var targetServers = from s in _servers
      where s.Location == "Asia" &&
      s.Ram > 16 &&
      s.Status == false
      orderby s.Name descending
      select s;
      foreach (var server in targetServers)
      {
         Console.WriteLine(server);
      }
      var offlineServers = from s in _servers
      where s.Status == false
      orderby s.Location descending
      select s;
      Console.WriteLine($"Number of offline servers: {offlineServers.Count()}");
      _servers.Add(new Server() { Name = "A", Ram = 16, Status = false, Location = "Europe" });
      Console.WriteLine($"Number of offline servers: {offlineServers.Count()}");
   }
}
public class Server
{
   public string Name { get; set; }
   public int Ram { get; set; }
   public bool Status { get; set; }
   public string Location { get; set; }
   public override string ToString() => $"{Name} / {Ram} / {Location}";
}

Result


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