Effective-Java-Notes

Notes about the book "Effective Java"

Creating and Destroying Objects

• Item 1: Consider static factory methods instead of constructors
• Item 2: Consider a builder when faced with many constructor parameters
• Item 3: Enforce the singleton property with a private constructor or enum type
• Item 4: Enforce noninstantiability with a private constructor
• Item 5: Prefer dependency injection to hardwiring resources
• Item 6: Avoid creating unnecessary objects
• Item 7: Eliminate obsolete object references
• Item 8: Avoid finalizers and cleaners
• Item 9: Prefer try-with-resources to try-finally

Methods Common to All Objects

• Item 10: Obey the general contract when overriding equals
• Item 11: Always override hashCode when you override equals
• Item 12: Always override toString

Concurrency

• Item 78: Synchronize access to shared mutable data