Java Enum Best Practice

Table of Contents

• Java Enum
• Item 35: Use instance fields instead of ordinals
• Use EnumSet
• Implement interface
• Use enum for Singleton class
• Prefer equals() over ==
• Add abstract methods(constant-specific method implementations) to enum
• Create an enum with Case Insensitive String
• Misc Tips about Enum

Java Varargs Best Practice

Table of Contents

• Varargs
• Don’t use Varargs unless really needed
• Require one
• Good Cases to Use Varargs
• Performance-critical Methods
• Careful when Overloading with Varargs
• Careful when Overloading with Varargs and Autoboxing
• Java Generic and Array doesn’t mix well
• Item 32: Combine generics and varargs judiciously
• Varargs gotchas: passing an array, a collection into varargs
• @SafeVarargs

Javadoc Best Practice

Table of Contents

• What to Comment
• The summary fragment
• Where to Write Javadoc
• Javadoc for class
• Params
• throws
• Overriding
• Use minimal HTML tags, not valid XHTML
• [@link and @code](https://blog.joda.org/2012/11/javadoc-coding-standards.html)
• More Elements
• Deprecated
• More Javadoc Annotations
• Misc Tips about Javadoc
• Common Mistake when Write Javadoc