QuipoIn

Java - Exception hierarchy

Which class is the root of the exception hierarchy in Java?

A. Exception 

B. Error 

C. Throwable  

D. RuntimeException

Which of the following is a checked exception?

A. NullPointerException 

B. IOException  

C. ArithmeticException 

D. ArrayIndexOutOfBoundsException

Which of these belongs to the Error class hierarchy?

A. SQLException 

B. OutOfMemoryError

C. NumberFormatException 

D. IOException

Which statement about RuntimeException is correct?

A. It is a checked exception 

B. It must always be declared in method signature 

C. It is an unchecked exception  

D. It cannot be thrown by JVM

Which statement is TRUE about Exception hierarchy?

A. All exceptions are errors 

B. All errors are exceptions 

C. Both exceptions and errors inherit from Throwable

D. Throwable is a subclass of Exception