Benefits of @implementation Convenience methods
52756
Difference between @interface definition in .h and .m file
20126
When should I implement IDisposable?
81624
Is returning null bad design?
41188
When would you use the Builder Pattern?
137106
What's the difference between adding pseudo-private ivars in a class extension or in the @implementation block?
105030
When to use: Java 8+ interface default method, vs. abstract method
70328
@class vs. #import
33679
Why should the interface for a Java class be preferred?
74926
On design patterns: When should I use the singleton?
150519
When should you use a local class in Java?
129080
Performance difference between dot notation versus method call in Objective-C
91891
When to use lazy instantiation in iOS?
149611
Java: Why are wrapper classes needed?
104538
Evaluation Symbol: Consistent Implementation
110761
Class with single method -- best approach?
72740
Invoking methods with optional parameters through reflection
88182
Traits vs. interfaces