What is Kotlin good for?

Kotlin is a modern, general-purpose programming language developed by JetBrains. Its full compatibility with Java and concise syntax makes it an appealing language for web development, Android development, and more . Every year more and more people rely on mobile devices to meet their needs.

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What does += mean in Kotlin?

The strange += operator in Kotlin introduce an immutable structure of the class for the plus operator which means any class outside the class can’t edit its internal data . introduce a mutable structure of the class for the plusAssign operator which means its internal data can be edited anywhere.

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