Java Core Class (Type, File)

11. Exceptions in Java

1. What exception is?

2. Hierarchy of exceptions overview.

3. Checked vs Unchecked exceptions.

4. Important methods of Exception.

5. Java 7 and multi-catch block.

6. Custom exceptions, best practice.

7. Runtime exceptions.

8. Finally block usage, best practice.

9. Exception handling best practice.

10. Why checked exception introduced in Java?

12. Constants in Java

1. What is constant in java?

2. Ways to create constance.

3. What is enum?

4. Why enum was introduced in Java? Benefits of using.

5. ‘Classical’ constances vs enums.

6. Best practice to create, keep constances.

7. Constants in interfaces?