---
title: "Discussion on \"Sealed Classes in Java\" | Hashnode"
description: "Discussion on \"Sealed Classes in Java\". Sealed classes are one of the biggest “modern Java” features that came after Java 8, finalized in Java 17 (LTS). They give you more control over inheritance and make class hierarchies safer and easier to reason about.\n\n1. The problem they solve\nIn Ja..."
url: "https://hashnode.com/posts/sealed-classes-in-java/68a9d06ee1abfbb2bb040535"
---

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# [Sealed Classes in Java](https://jainmohit0807.hashnode.dev/sealed-classes-in-java?utm_source=hashnode&utm_medium=feed)

Sealed classes are one of the biggest “modern Java” features that came after Java 8, finalized in Java 17 (LTS). They give you more control over inheritance and make class hierarchies safer and easier to reason about. 1. The problem they solve In Ja...

Aug 23, 2025 · 6 min read · jainmohit0807.hashnode.dev  
Updated Aug 29, 2025  
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-   [#java](https://hashnode.com/tag/java)
-   [#java-17](https://hashnode.com/tag/java-17)
-   [#sealed-class](https://hashnode.com/tag/sealed-class)
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-   [#backend-developments](https://hashnode.com/tag/backend-developments)
-   [#pattern-matching](https://hashnode.com/tag/pattern-matching)

## Written by

[Mohit jain](https://hashnode.com/@jainmohit0807)

@jainmohit0807

  
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Senior Software Developer

Oracle‬‭ Certified‬‭ Java‬‭ Developer‬‭ with‬‭ 7+ years‬‭ of‬‭ experience‬‭ specializing‬‭ in‬‭ backend‬‭ development,‬‭ microservices‬ architecture,‬‭ and‬‭ cloud-based‬‭ solutions.‬‭ Proven‬‭ expertise‬‭ in‬‭ designing‬‭ scalable‬‭ systems,‬‭ optimizing‬‭ performance,‬‭ and‬ mentoring‬‭ teams‬‭ to‬‭ enhance‬‭ productivity.‬‭ Passionate‬‭ about‬‭ building‬‭ high-performance‬‭ applications‬‭ using‬‭ Java,‬‭ Spring‬ Boot, Kafka, and cloud technologies (AWS/GCP)

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