https://aamernabi.github.io/tags/java17/ Recent content in Java17 on Aamer Paul Hugo en-us Tue, 02 Jul 2024 16:25:32 +0530 https://aamernabi.github.io/posts/java-sealed-interface/ Tue, 02 Jul 2024 16:25:32 +0530 https://aamernabi.github.io/posts/java-sealed-interface/ <p>Introduced as a standard feature in Java 17, <strong>sealed classes</strong> and <strong>sealed interfaces</strong> give you precise control over your class hierarchies. By declaring a class or interface as <code>sealed</code>, you can restrict which other classes or interfaces are allowed to extend or implement it.</p> <p>This feature is a powerful tool for domain modeling, enhancing security, and working with pattern matching in <code>switch</code> expressions.</p> <h2 id="what-are-sealed-classes">What are Sealed Classes?</h2> <p>A <strong>sealed class</strong> restricts which other classes can inherit from it. This provides better control over the class hierarchy, making your code more robust and maintainable.</p>