Core Java interview Question and Answers, Core Java interview Questions ~ For Job Seekers

Core Java interview Question and Answers, Core Java interview Questions

Hi, Today i would to Share Some More Core Java interview Question and Answers.

corejava, java, advanced java interview questions

1. What is importance of static variable?

static variables are the class level variables where all objects of class refer to same variable. If one object changes t value then the change gets reflected in all objects.

2. Can we declare a static variable inside the method?

Static varaibles are class level variables and they cannot t be declared inside the method. If it is declared, then the class will not compile.

3. What is Abstract Class and its purpose?

A Class which doesn't provide complete implementation is called as an abstract class. Abstract classes enforce abstraction.

4. Can abstract class be declared as final?

No. An abstract class without being inherited is of no use and hence will result in the compile time error.

5. What is use of abstract variable?

Variables cannot be declared as abstract. only the classes and methods can be declared as abstract.

6. Can you create an object of the abstract class?

Not . Abstract classes cannot be instantiated.