MANVIA BLOG

What is oops ? what is the use of oops ? What are the features or properties ?

What is class and object ?

What is Encapsulation and Abstraction ?

What is inheritance ?

What is Polymorphism? Overloading vs Overriding ?

Can we implement Polymorphism without inheritance?

What is related and unrelated classes?

Final keyword ?

What is abstract class?

Can we create instance of a abstract class? Answer - no

Is it compulsory to implement the abstract methods? Answer - yes

Can We Partially Implement a Simple Class? Answer : No

Can we convert a simple base class to abstract class? Answer : Yes

What is interface ?

Can we write logic in interface ? Answer : no

can we create instance of interface? Answer : no

can we do multiple inheritance with abstract classes? Answer : no

when do we use multiple inheritance using interface?

Can we use abstract class instead of interface and vice versa ?

Can we use abstract class and interface together?

Difference between Abstract class and Interface

What is Static variables

What is the difference of static and non static variables?

When to use static variables

When not to use static variables

Can we use static variable instead of non-static variables?

Can we use non-static variable instead of static variables?

What is Static function

Difference between static function and non-static function

When to use a static function?

When not to use a static function?

Can we use a static function instead of non-static function?

Can we use a non-static function instead of static function?

What is a static class?