What is class structure in Java?

5 The Structure of Java Programs. Every Java program consists of a collection of classes–nothing else. A class is a template for creating a particular form of object . Each object created by the template contains the same members, each of which is either a field or a method.

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What is a class in the system design?

Class diagrams are the blueprints of your system or subsystem . You can use class diagrams to model the objects that make up the system, to display the relationships between the objects, and to describe what those objects do and the services that they provide. Class diagrams are useful in many stages of system design.

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