Java Programming — MCQ Practice Questions & Answers

Question 1

Analyze the code: try { return 5; } finally { return 10; } What will be returned?

Accepted Answer

Correct answer: B. 10 — The finally block always executes, and if it contains a return statement, it overrides the return value from try or catch block. So 10 is returned.

Answer

A. 5

Answer

C. Error

Answer

D. Null

Question 2

What happens if an exception is thrown in the finally block?

Accepted Answer

Correct answer: C. It replaces the original exception — If an exception occurs in the finally block, it will replace any exception thrown in the try or catch block, and the new exception will be propagated.

Answer

A. It suppresses the original exception

Answer

B. It is ignored

Answer

D. It causes a compilation error

Question 3

Analyze the nested try-catch: try { try { int x = 5/0; } catch(NullPointerException e) { System.out.println("Inner"); } } catch(ArithmeticException e) { System.out.println("Outer"); }

Accepted Answer

Correct answer: B. Outer — ArithmeticException is thrown by 5/0. Inner catch only catches NullPointerException, so it propagates to outer catch which handles ArithmeticException. Output: Outer

Answer

A. Inner

Answer

C. Inner Outer

Answer

D. Neither prints

Question 4

What will be printed? public class ExceptionTest { public static void main(String[] args) { try { testMethod(); } catch (Exception e) { System.out.println("Caught"); } } public static void testMethod() { try { throw new RuntimeException("Error"); } finally { System.out.println("Finally");

Accepted Answer

Correct answer: A. Finally Caught — Finally block executes first (prints 'Finally'), then the exception propagates to outer catch block which prints 'Caught'.

Answer

B. Caught Finally

Answer

C. Finally

Answer

D. Caught

Question 5

Which of the following is NOT a characteristic of Exception class in Java?

Accepted Answer

Correct answer: B. It is always checked exception — Exception class has both checked subclasses (like IOException) and unchecked subclasses (like RuntimeException). Not all exceptions extending Exception are checked.

Answer

A. It extends Throwable

Answer

C. Its subclasses may be checked or unchecked

Answer

D. It can be instantiated directly

Question 6

Which of the following cannot throw a checked exception without being declared in throws clause?

Accepted Answer

Correct answer: D. All of the above — Checked exceptions in constructors, instance initializers, and static initializers must be handled with try-catch or declared in throws (constructors only). This is enforced by Java compiler.

Answer

A. Constructor

Answer

B. Instance initializer block

Answer

C. Static initializer block

Question 7

What is the execution order in try-catch-finally for nested exception handling?

Accepted Answer

Correct answer: B. Outer try → Outer catch → Inner try → Inner catch → Inner finally → Outer finally — Nested exception handling follows inner-to-outer order. Inner try-catch-finally completes fully, then control passes to outer blocks. Finally blocks execute in their respective scope order.

Answer

A. Inner try → Inner catch → Inner finally → Outer try → Outer catch → Outer finally

Answer

C. All finally blocks execute before any catch blocks

Answer

D. Execution order depends on compiler optimization

Question 8

What is suppressed exception in Java (introduced in Java 7)?

Accepted Answer

Correct answer: B. Exceptions thrown during resource closure in try-with-resources are added to suppressed list of primary exception — In try-with-resources, if an exception occurs in try and another in resource close(), the second is added as suppressed exception to the first using addSuppressed(), preserving all exception information.

Answer

A. An exception that occurs but is hidden from the programmer

Answer

C. An exception that doesn't need to be caught

Answer

D. An exception that only occurs in finally blocks

Java Programming - MCQ Practice Questions