A Comparison Between Java and Kotlin Collections APIs

A Comparison Between Java and Kotlin Collections APIs

We have two entities that we will use to compare for writing the code using collections in both Java and Kotlin. We will learn A Comparison Between Java and Kotlin Collections APIs.

We have two entities that we will use to compare for writing the code using collections in both Java and Kotlin. Our aim is to see the following:

  • How to use collections effectively for a variety of cases
  • How Kotlin and Java compare in terms of lines of code and ease of understanding

We will use two entities called Actor and Episode . The entities are just for demonstration. You can use anything, like LibraryBookUserEmployeeBankMoney, etc. The Collections API makes working with Lists, HashMaps, and Sets fairly simple, and with Streams API introduced in Java 8, iterating over collections is much simpler. There are several operations (called intermediate and terminal) that you can apply to the collections without actually mutating them.

This gives a nice abstraction and better control over concurrency. Kotlin has taken things one step further and abstracted most of the boilerplate when it comes to using Streams. The syntax is much simpler, and it does the same thing with the same speed. With several examples, you will learn how to use Streams in Java and similar implementations in Kotlin.

Let’s initialize the data first.

kotlin

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