OCP Exception Handling and Assertions 2

Question 1

What happens when an exception is thrown inside a try block and no matching catch block exists in the current method?

Accepted Answer

The exception propagates up the call stack

Answer

The exception is silently ignored

Answer

The JVM terminates immediately

Answer

The finally block is skipped

Question 2

Which of the following is true about the `finally` block in Java?

Accepted Answer

It executes even if a return statement is in the try block

Answer

It only executes when an exception is thrown

Answer

It executes only if no exception is thrown

Answer

It prevents exceptions from propagating

Question 3

What is the output of: `try { throw new RuntimeException(); } catch (Exception e) { System.out.print("A"); } finally { System.out.print("B"); }`?

Accepted Answer

AB

Answer

A

Answer

B

Answer

BA

Question 4

Which exception class must be the parent when creating a custom checked exception?

Accepted Answer

Exception (but not RuntimeException)

Answer

RuntimeException

Answer

Error

Answer

Throwable directly

Question 5

What does the `assert` statement do when assertions are disabled?

Accepted Answer

Is completely skipped by the JVM

Answer

Throws AssertionError

Answer

Evaluates the expression but ignores the result

Answer

Throws IllegalStateException

Question 6

Which of the following correctly uses a multi-catch block (Java 7+)?

Accepted Answer

catch (IOException | SQLException e)

Answer

catch (IOException, SQLException e)

Answer

catch (IOException && SQLException e)

Answer

catch (IOException e | SQLException e)

Question 7

What is the effect of catching a checked exception that the try block cannot throw?

Accepted Answer

It causes a compile-time error

Answer

It is silently ignored at runtime

Answer

It causes a runtime warning

Answer

It is allowed as defensive programming