c# interview questions (intermediate)

• is the LINQ Any operator a linear search?
• what patterns have you used in your code?
• if you needed to implement a process that had sub process A,B,C,D,E and B and D changed in detail in 5 situations - how would you model this?
• what is the Big O notation of a binary search?
• Can you describe how a hash table works?
• how can you add a compiler warning?
•        #warning
• Can you implement an interface that is using a base object with an implementation that is using a descendant class?
• how can you get the members of a class progromatically?
•         Type t = typeof(blah); MemberInfo[] m =  t.GetMembers();
• how can you alert a user of your class that a procedure is obsolete?
•          [Obsolete("hody doe")]
• can a private member ever be available to a different class without reflection?
•        Nested classes
• can you change the name of a rerefenced class to something else?
•        alias  - using msg = System.Windows.Forms.MessageBox; 
• var test = new { herby = "hello", age = 67f } what type is this?
• anonymous - system generated name
• what is the meaning of checked and uchecked keyword in c#?
• What type of objects are able to be queried by linq?
• IQueryable and IEnumerable
• when you have a readonly variable pointing to an object, can you change the value of the object?
• How would you reference a custom attribute added to a object?
• GetCustomAttributes, reflection
• Why are strings immutable in c#
• Which Interface would you implement for deep copying?
• ICloneable
• How can you add functionality to a sealed class?
• extension method
• How would encapsulate a reference type like a list as a member of a class to be read only?
• how to have a generic procedure make sure whatever is being passed implements an interface properly  
• void SwapIfGreater<T>(ref T lhs, ref T rhs) where T : System.IComparable<T>

• How to Explicitly Implement Members of Two Interfaces 
• interface IA
      {
           void hody();
      }
  
  
      interface IB
      {
           void hody();
      }
  
  
      class HodyDoe : IA, IB
      {
          void IA.hody()
          {
              Console.WriteLine("IA.hody"); 
          }
  
  
          void IB.hody()
          {
              Console.WriteLine("IB.hody"); 
          }
      }
     
      class Program
      {
          static void Main(string[] args)
          {
  
  
              HodyDoe h = new HodyDoe();
              (h as IA).hody();
              (h as IB).hody();
              Console.ReadLine(); 
  
  
          }
      }