C# Interview Questions - Part 1

Interview Questions
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1. What are the main properties of object oriented programming?
a ) There are mainly 3 properties
1. Encapsulation/Abstraction
2. Inheritance
3. Polymorphism

2. What is encapsulation?
a ) This gives a way to hide the internal details of an object from its users.

3. What is inheritance ?
a ) It provides a way to build/create new classes using existing classes.

4. What is polymorphism?
a ) It provides a way to take more than one form.

5. What is a constructor?
a ) Constructor enables an object to initialize itself when it is first created.

6. What are the properties of a constructor?
a ) They are
1. They should have the same name as that of a class
2. They do not specify a return type.
3. we can use access modifiers to constructor.

7. How many types of access modifiers are there ?
a ) 5 types
1. Private
2. Public
3. Protected
4. Internal
5. Protected Internal

8. What access modifiers we can use for a class?
a ) We can use 2 access modifiers
1. Public
2. Internal

9. What is the default access modifier of a class?
a ) It is Internal

10. What is the default access modifier for class members?
a ) It is Private