Java Programming for Complete Beginners - Java 16 - Step 04 - Basics of Handling Exceptions - Exception Hierarchy, Match

The video tutorial covers the syntax and hierarchy of exceptions in Java, focusing on specific exceptions like Null Pointer Exception and Array Index Out of Bounds Exception. It explains how to handle these exceptions using multiple catch blocks and emphasizes the importance of matching the most specific exception. The tutorial also discusses what happens when an exception is not handled and how to ensure proper exception handling.

What is the relationship between NullPointerException and Exception in Java?

• NullPointerException is a subclass of Exception.

• NullPointerException is a superclass of Exception.

• NullPointerException is a sibling class of Exception.

• NullPointerException is unrelated to Exception.

Why is it important to have multiple catch blocks in exception handling?

• To prevent any exceptions from occurring.

• To handle different types of exceptions specifically.

• To make the code run faster.

• To avoid using try blocks.

What happens if a specific exception is not caught by any catch block?

• The exception is ignored.

• The program continues to run normally.

• The exception is thrown to the calling method.

• The program automatically fixes the exception.

Which exception is thrown when accessing an invalid index in an array?

• ArrayIndexOutOfBoundsException

• NullPointerException

• IOException

• ClassCastException

What is the role of the catch block in exception handling?

• To define how to handle specific exceptions.

• To prevent exceptions from occurring.

• To log exceptions without handling them.

• To execute code regardless of exceptions.

If an exception occurs and there is no matching catch block, what is the outcome?

• The exception is automatically resolved.

• The program continues without any issues.

• The exception is thrown to the calling method.

• The program terminates immediately.

What is the purpose of understanding the hierarchy of exceptions?

• To write more efficient code.

• To handle exceptions in a more specific manner.

• To avoid using try-catch blocks.

• To make the code more readable.