Interview Questions and Answers
(OOPs in C#)
Questions and Answers:
1. Can we use “this” keyword in static method in C#?
Answer:
We cannot use "this" keyword inside the static method as "this" keyword returns a
reference to the current instance of a class and we don’t use any instance to call static
members of a class instead we call them by using the class name.
2. What is the difference between break and continue statement?
Answer:
Use ‘break’ statement when you want to jump out of the loop and use ‘continue’
statement when you want to jump over an iteration and continue the loop execution.
3. What is the difference between finally and finalize blocks?
Answer:
‘finally’ block gets executed with try and catch. ‘finally’ block always gets executed after
try and catch block whether exception is caught or not.
‘finalize’ method is called just before the garbage collection. It is automatically called
when an instance is not being called or used. It is used to clean up the unmanaged code.
4. What is thread?
Answer:
A thread is a set of instructions. On execution of thread, a program performs concurrent
processing (more than one process at a time). Thread follows a life cycle where it starts
whenever a thread is created and gets terminated immediately after the execution.
5. Can you inherit Enum in C#?
Answer:
NO, you cannot inherit Enum as it is sealed by default.
6. What is pure virtual function?
Answer:
