level 1 : 11 Step by step interview question to crack the interview.

1. what is full form of oops?

2.what is different between class and object ?

3. how will you define an instance in java?

4. what is different between object and instance?

5. why class is called as blueprint?

6. do 'class' is a keyword? will this code compile?

     public class Class{}

7. which type of properties does class has ? which properties or behavior need object to be called.

public class callkr{

       int x=50;                     //line 1

       static int x1=51;            //line 2

       public void show(){}         //line 3

       public static void show1(){}//line 4

}

8. what is static member and non static member of the class?

9. why we have properties in any class ?

10.why should we keep behavior or function in any class ?

12.what type of relation do class show with properties and behavior ?

13.Can we have a class without any properties and behavior ?

14.do you know encapsulation . what does encapsulation means in java ?

15.What is class diagram ? write a code for below class diagram?

Class Diagram

Class Callkr
·         eid ·         salary	Non-Static variables or Instance variable or non-static fields/properties
·         joiningDate ( ) ·         getSalary( ) ·         Report ( )	Non-Static methods or Non-static behaviors

16. Write a program to show Encapsulation in class ?

17. what do u mean by Abstraction ? write a simple code and explain where we can see

    abstraction in your code ?

18. what is inheritance concept ?

19. Do we always need a parent class to achieve inheritance in java. ?

20. write a simple code to show inheritance in java?