What does .class extension mean in Java?

Definition and Usage The extends keyword extends a class (indicates that a class is inherited from another class ). In Java, it is possible to inherit attributes and methods from one class to another. We group the “inheritance concept” into two categories: subclass (child) – the class that inherits from another class.

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What is the class name?

The className specifies the class name of an element . To apply multiple classes, separate them using spaces. As an example, if an element has two classes than we specify them as “classname1 classname2” where classname1 and classname2 are the names of two different classes.

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