Question: 3.1. Answer these questions: a. Explain why encapsulation is an important principle for OO design. b. When is it OK to throw exceptions as part

3.1. Answer these questions: a. Explain why encapsulation is an important principle for OO design. b. When is it OK to throw exceptions as part of the contract ? Add to your answer an example (no code, just a description). c. Explain why side effects should be avoided. d. Give an example (from a real API or imagine one) where Cohesion is in conflict with Completeness and Convenience. Do not use the textbook examples

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