Polymorphism. LET: public class BaseClass { public string DoWork() { return "A"; } } public class DerivedClass : BaseClass { public new string DoWork() { return "B"; } } IF: DerivedClass B = new DerivedClass(); BaseClass A = (BaseClass)B; A.DoWork(); What's the resulted output?

What will happen if the requested type conversion is not possible when using an 'as' operator ?

Which statement is True?

The main reflection methods to query attributes are contained in the...

Which of the following expressions give a compile time error?

You are creating a class to compare a specially formatted string. You need to implement the IComparable<string> interface. Which code segment should you use?

What is the fundamental difference between double and decimal variable types?

Which of the following statements are correct?

Which of the following code snippets are the correct way to convert a Single into a String in C#? (Choose all that apply.)

What is the purpose of the yield keyword in C#?

What will be the output of the following set of code? { int sum = 10; try { int i; for (i = -1; i < 3; ++i) sum = (sum / i); } catch (ArithmeticException e) { Console.WriteLine('0'); } Console.WriteLine(sum); Console.ReadLine(); }