diff between abstract and interface, method overloading, overriding, microservices, how do microservice communicate

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Accepted Answer

Abstract class is a class that cannot be instantiated, while an interface is a blueprint of a class with only abstract methods.

Abstract class cannot be instantiated, but can have both abstract and non-abstract methods.
Interface can only have abstract methods and cannot have method implementations.
Method overloading is having multiple methods in the same class with the same name but different parameters.
Method overriding is implementing a method in a subclass that is already present in the superclass.
Microservices are small, independent services that communicate with each other over a network.
Microservices communicate through APIs, message queues, or service meshes.

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