Java Exception Handling Quiz

What is the output of the following Java code snippet? class method { public static void main(String args[]) { try { int a = args.length; int b = 10 / a; System.out.print(a); try { if (a == 1) a = a / a - a; if (a == 2) { int arr[] = new int[8]; arr[8] = 9; } } catch (ArrayIndexOutOfBoundsException e) { System.out.println("TypeA"); } catch (ArithmeticException e) { System.out.println("TypeB"); } } } }

• Runtime Error

• Compilation Error

• TypeB

• TypeA

What is the output of this Java program? class exception_handling { static void throwexception() throws ArithmeticException { System.out.print("0"); throw new ArithmeticException ("Exception"); } public static void main(String args[]) { try { throwexception(); } catch (ArithmeticException e) { System.out.println("A"); } } }

• None of these.

• Exception

• 0A

• 0

• A

Which of these keywords is used to manually throw an exception?

• catch

• try

• finally

• throw

• None of these.

Which of these operators is used to generate an instance of exception than can be thrown by using throw?

• alloc

• None of these.

• thrown

• new

• malloc

Select the best answer for the code given below? class Trouble { void rightHere() { throw new Exception(); } }

• You cannot throw an instance of the Exception class.

• The throw keyword is not used correctly.

• The method rightHere() is not defined correctly.

• None of these.

What is the output of the below Java program? class Myexception extends Exception { int detail; Myexception(int a) { detail = a; } public String toString() { return "detail"; } } class method { static void compute (int a) throws Myexception { throw new Myexception(a); } public static void main(String args[]) { try { compute(3); } catch(Exception e) { System.out.print("Exception"); } } }

• Exception

• Runtime Error

• Compilation Error

• None of these.

• 3

Which of these methods return description of an exception?

• obtainException()

• obtainDescription()

• getMessage()

• None of these.

• getException()

Which of these points will be valid If superclass method does not throw any exception?

• Overridden method of sub class may not throw any exception.

• All

• overridden method of sub class cannot throw any checked exception.

• overridden method of sub class can throw any Runtime Exception.

Which of these handles the exception when no catch is used?

• None of these.

• finally

• Default handler

• throw handler

• Java run-time system

Which of these classes is the super class of Exception class?

• System

• Class

• RunTime

• None of these.

• Throwable