What is Boxing and Unboxing ?

What are advantages and limitations of OOPS?

What are the advantages and limitations of OOPS?

What are Classes and Objects ?

What is Inheritance ? Why Inheritance is important?

What are different types of Inheritance ?

How to prevent a class from being Inherited ?

What is Abstraction?

What is Encapsulation?

What is Encapsulation?

What is Polymorphism and what are its types ?

What is Method Overloading? In how many ways Method can be overloaded?

What is difference between Overloading and Overriding?

What is difference between Method Overriding and Method Hiding?

What is difference between Method Overriding and Method Hiding?

What is the difference between an Abstract Class and an Interface?

Questions on Abstract Class and Interfaces?

What is the difference between String and StringBuilder?

What are Access Specifiers ? What is the default access modifier in a class ?

What is Boxing and Unboxing ?

What are the basic string operations in C#?

What are Nullable types ?

Explain Generics in C#? When and why to use them?

How to implement Exception Handling in C#?

Can we execute multiple Catch blocks?

What is a Finally block and give an example when to use it?

Can we have only "Try" block without "Catch" block?

What is the difference between "throw ex" and "throw"?

What are the Loop types in C#?

What is the difference between "continue" and "break" statement?

What is the difference between Array and ArrayList (atleast 2)?

What is the difference between Arraylist and Hashtable?