Stay tuned for more items from our “Effective Java for Android developers” Fragment series. In this mini Fragment, we introduce Joshua’s third Item: Enforce the Singleton property with a private constructor or an enum type. Posted on OctoFebruAuthor Kaushik Gopal Categories Effective Java, Episodes, Fragments 2 Comments 018: Effective Java for Android developers : Item 3 Important side effect: prevents subclassing.Private constructors prevent instantiation.Makes no sense to instantiate such “Util” classes.class that group methods on a final class (vs.class that groups static methods (including factory methods) for objects implementing specific interfaces (think ).class that groups static methods and static fields (Util like classes think /). Examples where you don’t want class to be instantiated Effective Java (2nd Edition) – Joshua BlochĮnforce noninstantiability with a private constructor.Stay tuned, cause we got more of these quick ones coming. Singer and Android developer Donn Felker explores Joshua Bloch’s fourth Item: Enforce noninstantiability with a private constructor. Also check out his blog įormat Image Posted on OctoAuthor Kaushik Gopal Categories Episodes Tags Hadi, Hadi Hariri, Jetbrains, kotlin 6 Comments 019: Effective Java for Android developers : Item 4.When working on a feature, change your launcher activity (temporarily) to the one you’re working on.When looking for solutions to a problem, search the source code first before StackOverflow.The collapse of the US-EU Safe Harbor: Solving the new privacy Rubik’s Cube.Try Kotlin online : online & interactive.Tony Hoare saying Null is his Billion dollar mistake.Kotlin : a new hope – talk by Michael Pardo.
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