Effective Java

My own examples from Effective Java by Joshua Bloch using TDD.

2 Creating and Destroying Objects

• Item 1 - Consider static factory methods instead of constructors
• Item 2 - Consider a builder when face with many constructor parameters
• Item 3 - Enforce the singleton property with a private constructor or an enum type
• Item 4 - Enforce noninstantiability with a private constructor
• Item 5 - Avoid creating unnecessary objects

3 Methods Common to All Objects

• Item 8 - Obey the general contract when overriding equals
• Item 9 - Always override hashCode when you override equals
• Item 10 - Always override toString
• Item 11 - Override clone judiciously
• Item 12 - Consider implementing Comparabale

4 Classes and Interfaces

• Item 15 - Minimize Mutability
• Item 18 - Prefer interfaces to abstract classes

7 Methods

• Item 38 - Check parameters for validity
• Item 41 - Use overloading judiciously
• Item 43 - Return empty arrays or collections, not nulls

9 Exceptions

• Item 58 - Use checked exceptions for recoverable conditions and runtime exceptions for programming errors
• Item 59 - Avoid unnecessary use of checked exceptions
• Item 60 - Favor the use of standard exceptions