Day 6 - Exception Handling

What is an exception in Java?

• An error in the code
• A runtime error
• A logical error
• A compile-time error

Which of the following is a checked exception?

• NullPointerException
• ArrayIndexOutOfBoundsException
• IOException
• ArithmeticException

Which keyword is used to handle exceptions?

• catch
• try

• both try & catch

• throws

Which block is always executed?

• try
• catch
• finally
• throw

Which keyword is used to throw an exception manually?

• throws
• throw
• final
• try

Which of these is a superclass of all exceptions?

• Throwable
• Error
• Exception
• RuntimeException

What is the use of throws keyword?

• To throw multiple exceptions
• To declare exceptions
• To catch exceptions
• To ignore exceptions

Can we write only try block without catch or finally?

• Yes
• No
• Only in static method
• Only in main()

What happens if an exception is not caught?

• Program runs normally
• Program crashes
• It is handled by JVM
• It is ignored

Can a catch block catch multiple exception types?

• No
• Yes, since Java 7
• Only if final
• Only if static