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  • Interface in java and its rules

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    In Java, an interface is a reference type, similar to a class, that defines a set of abstract methods that must be implemented by any class that implements the interface. Interfaces provide a way to achieve abstraction and multiple inheritance of types, allowing classes to share common functionality without sharing a common implementation. Here are…

  • Abstract class in java and why it is needed

    In Java, an abstract class is a class that cannot be instantiated directly and is typically used as a blueprint for other classes. It allows you to define common methods and fields that can be inherited by its subclasses, while also providing the flexibility to declare certain methods as abstract, which means they have no…