Finally Block and Resource Cleanup

In this problem, you will implement a Resource class and verify that each method behaves correctly.

Learning Objective: Understand finally block behavior and how to reliably release resources

Specifications

Implement a Resource class:

• open(): outputs "Resource opened" (no exception)
• use(boolean shouldFail):
  • If shouldFail is true, throws RuntimeException("Operation failed")
  • If shouldFail is false, outputs "Resource used" (no exception)
• close(): outputs "Resource closed" (no exception)

Verification Points

• open() → no exception
• close() → no exception
• use(false) → no exception
• use(true) → throws RuntimeException("Operation failed")