guzelcihad / 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 an 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

Item 13: Override clone judiciously

Item 14: Consider implementing Comparable

Classes and Interface

Item 15: Minimize the accessibility of classes and members

Item 16: In public classes, use accessor methods, not public fields

Item 17: Minimize mutability

Item 18: Favor composition over inheritance

Item 19: Design and document for inheritance or else prohibit it

Item 20: Prefer interfaces to abstract classes

Item 21: Design interfaces for posterity

Item 22: Use interfaces only to define types

Item 23: Prefer class hierarchies to tagged classes

Item 24: Favor static member classes over nonstatic

Item 25: Limit source files to a single top-level class