Dotnet framework

Q1- What is .net framework. 

 A1- .net simply we can say a product developed by Microsoft for developing various kind of applications like that web, windows and mobile applications.

How to use where operator In LINQ

   public void LinqWhereCondition() 
    { 
        int[] nums = { 5, 3, 1, 4, 9, 0, 6, 2, 7, 8 }; 
      
        var lowNums = 
            from n in nums 
            where n < 5 
            select n; 
      
        Console.WriteLine("Numbers < 5:"); 
        foreach (var j in lowNums) 
        { 
            Console.WriteLine(j); 
        } 
    }