// i is compiled as an int
var i = 5;
 
// s is compiled as a string
var s = "Hello";
 
// a is compiled as int[]
var a = new[] { 0, 1, 2 };
 
// expr is compiled as IEnumerable
// or perhaps IQueryable
var expr =
    from c in customers
    where c.City == "London"
    select c;
 
// anon is compiled as an anonymous type
var anon = new { Name = "Terry", Age = 34 };
 
// list is compiled as List
var list = new List();

for(var x = 1; x < 10; x++)

foreach(var item in list){...}

using (var file = new StreamReader("C:\\myfile.txt")) {...}

class ImplicitlyTypedLocals2
{
    static void Main()
    {
        string[] words = { "aPPLE", "BlUeBeRrY", "cHeRry" };
 
        // If a query produces a sequence of anonymous types,
        // then use var in the foreach statement to access the properties.
        var upperLowerWords =
             from w in words
             select new { Upper = w.ToUpper(), Lower = w.ToLower() };
 
        // Execute the query
        foreach (var ul in upperLowerWords)
        {
            Console.WriteLine("Uppercase: {0}, Lowercase: {1}", ul.Upper, ul.Lower);
        }
    }
}
/* Outputs:
    Uppercase: APPLE, Lowercase: apple
    Uppercase: BLUEBERRY, Lowercase: blueberry
    Uppercase: CHERRY, Lowercase: cherry
 */

// Same as previous example except we use the entire last name as a key.
// Query variable is an IEnumerable>
 var studentQuery3 =
     from student in students
     group student by student.Last;