Sealed traits
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What is Sealed traits?
Sealed traits are used to define closed hierarchies where all possible subclasses are known. They can be extended only in the same file as their declaration, allowing the compiler to perform exhaustiveness checking. This feature is particularly useful for pattern matching.
Free resources to learn Sealed traits
More in stage 10: Pattern Matching
Sealed traits: common questions
Can I learn Sealed traits in Hindi?
This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Sealed traits in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.
Is this Sealed traits tutorial for beginners?
It is lesson 54 of 165 in the free Scala roadmap, in stage 10, Pattern Matching. If you are new to Scala, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.