LINQ: sample LINQ C#

Following code will help , how to start using with LINQ C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml.Linq;

namespace LINQ
{
class Program
{
static void Main(string[] args)
{
Exercise1();
}

static void Exercise1()
{
string[] Greetings ={"Babu","Ramu","Rajesh","Kumar","Ramesh"};

var Items = from s in Greetings
where s.EndsWith("u")
select s;

foreach (var item in Items)
{
Console.WriteLine(item);
}
//Console.ReadLine();
}
}
}