DADT03 Exception Handling

What is the main purpose of exception handling in Java?

• To ignore runtime errors

• To terminate the program immediately

• To handle runtime errors gracefully

• To increase program performance

Which of the following is a checked exception?

• NullPointerException

• IOException

• ArithmeticException

• ArrayIndexOutOfBoundsException

What is the top-most class in the exception hierarchy in Java?

• RuntimeException

• Error

• Exception

• Throwable

Which keyword is used to handle exceptions in Java?

• throw

• catch

• try

• finally

Which keyword is used to explicitly raise an exception?

• raise

• throws

• throw

• error

Which method must be overridden when creating a custom exception class?

• getCause()

• toString()

• getMessage()

• None (optional override)

In a try-with-resources statement, which interface must the resource implement?

• AutoCloseable

• Serializable

• Runnable

• CloseableOnly

If an exception is not caught, it is propagated to:

• The compiler

• The operating system

• The calling method

• JVM

Which block is always executed whether an exception occurs or not?

• try

• catch

• finally

• throw

ArithmeticException is a type of (a)   exception.