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Maximizing code reuse in your Java programs means writing code that is easy to read, ... To understand this concept better, let’s first look at an example of a class that is not cohesive: ...
Abstract classes and interfaces are plentiful in Java code, and even in the Java Development Kit (JDK) itself. Each code element serves a fundamental purpose: Interfaces are a kind of code ...
By allowing developers to define closed hierarchies, sealed classes improve code safety, clarity and maintainability. Sealed classes make Java an even more powerful and expressive language and set the ...