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Object-Oriented Programming · Module 9 of 10

Exceptions and object lifecycle

Handle errors and manage object lifetimes.

📖 Key ideas

  1. Exceptions signal errors; handle with try/catch (try/except).
  2. Create custom exception classes for domain errors.
  3. Objects are created with constructors and cleaned by garbage collection (Java, Python).
  4. C++ uses destructors and RAII.
  5. Release resources with try-with-resources or with statements.
💡 Real-life example: Exceptions are fire alarms: when something goes wrong, the right team responds.
ExceptionObject representing an error
Custom exceptionUser-defined error class
Garbage collectionAutomatic memory cleanup
DestructorCleanup method when object ends