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by Qadeer Ahmad Khan

Effective Java - Exceptions

Exceptions (Ch 9) This is a short summary of Joshua Blochs book Effective Java chapter 9. I have only included items that I find relevant. Throw exceptions appropriate to the abstraction (Item 61) Higher layers should translate lower-level exceptions to their domain. Lower level exception may not make any sense... View entire post

Effective Java - General Programming

General Programming (Ch 8) This is a short summary of Joshua Blochs book Effective Java chapter 8. I have only included items that I find relevant. Avoid float and double if exact answers are required (Item 48) In binary floating point arithmetic floats and doubles cannot represent 0.1 or any... View entire post

Effective Java - Methods

Methods (Ch 7) This is a short summary of Joshua Blochs book Effective Java chapter 7. I have only included items that I find relevant. Parameter validation (Item 38) Non-public methods should check their parameters using assertions (assert) because you as author control the circumstances under which the method are... View entire post

Effective Java - Enums and Annotations

Enums and Annotations (Ch 6) This is a short summary of Joshua Blochs book Effective Java chapter 6. I have only included items that I find relevant. Enum (Item 30) Use abstract methods in Enums to give each enum constant specific behaviour. Strategy enum pattern: delegate part of behaviour into... View entire post

Effective Java - Generics

Generics (Ch 5) This is a short summary of Joshua Blochs book Effective Java chapter 5. I have only included items that I find relevant. Don’t use raw types (Item 23) Using unbounded wildcard type is better than using raw types e.g. Set<?>. This is because you cannot add anything... View entire post

Effective Java - Classes and Interfaces

Classes and Interfaces (Ch 4) This is a short summary of Joshua Blochs book Effective Java chapter 4. I have only included items that I find relevant. Minimize accessibility to keep your API clean (item 13) A public class or member is part of the contract to your clients, and... View entire post