Exception Handling

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Which class is the superclass of all errors and exceptions in Java?

ExceptionErrorThrowableRuntimeException

Which block is always executed regardless of an exception?

trycatchfinallythrow

What keyword is used to explicitly throw an exception?

throwsthrowcatchfinally

Which of the following is a checked exception?

NullPointerExceptionArithmeticExceptionIOExceptionArrayIndexOutOfBoundsException

Can we have a try block without a catch block?

Yes, if finally is presentNo, neverYes, alwaysOnly for unchecked exceptions

What happens if an exception is not caught?

Program continues normallyProgram terminates abruptlyJVM catches it and ignores itNothing

What exception is thrown by division by zero in integers?

ArithmeticExceptionNullPointerExceptionMathExceptionNumberFormatException

Where is the "throws" keyword used?

Inside a method bodyIn a catch blockIn the method signatureIn the finally block

Which of these is an unchecked exception?

SQLExceptionClassNotFoundExceptionNullPointerExceptionFileNotFoundException

Can multiple catch blocks handle the same exception class?

YesNo, it causes compilation errorYes, but only in different methodsNo, it causes runtime error