Methods

Memory map

Objective

Following rules are described

1. Item 49: Check parameters for validity
2. Item 50: Make defensive copies when needed
3. Item 51: Design method signatures carefully
4. Item 52: Use overloading judiciously
5. Item 53: Use varargs judiciously
6. Item 54: Return empty collections or arrays, not nulls
7. Item 55: Return optionals judiciously
8. Item 56: Write doc comments for all exposed API elements