In my last blog post, I wrote about variables, and in particular, primitives. Today I’m going to expand on variables and talk about the oh-so-powerful idea of “collections.”
Unlike Java, which only has one type of collection (Arrays, also know as a Lists), Apex has three to choose from: Lists, Sets, and Maps. Together, we’ll go into each of these types of collections and show you what they are best used for, and how to use them when you start coding.
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