Initializing a collection

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Initializing a collection

Before Java 1.7, only this one is permitted: ArrayList<String> a = new ArrayList<String>(); And in 1.7, this is added, which is the same but shorter: (all programmers are lazy) ArrayList<String> a = new ArrayList<>(); 在Java 1.7,只有这…

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The common language runtime (CLR) offers two kinds of properties: 1.parameterless properties, which are simply called properties 2.parameterful properties, which are called different names by different programming languages. 1.Parameterless Propertie…

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Custom Layouts: A Worked Example Creating a custom collection view layout is simple with straightforward requirements, but the implementation details of the process may vary. Your layout must produce layout attributes objects for every view your coll…