Exception Handling

Question 1

What is an exception?

Answer 1

An exception is an error message.

Question 2

What are the two types of Exceptions?

Answer 2

Checked and Unchecked Exceptions

Question 3

What is a checked exception?

Answer 3

This is a compile time error, that the compiler forces you to handle with the use try/catch blocks and the throw/throws keywords.

Question 4

List 3 Examples of checked exceptions.

Answer 4

1. IOException
2. FileNotFoundException
3. SQLException

Question 5

What is an unchecked exception?

Answer 5

These are errors or exception that occur at runtime

Question 6

What are some examples of unchecked exceptions?

Answer 6

ArithmeticException
ArrayIndexOutOFBoundsException
NullPionterException