How do you declare an inherited class?

Declare an inheritance hierarchy You use the keyword extends to identify the class that your subclass extends . If you don’t declare a superclass, your class implicitly extends the class Object. Object is the root of all inheritance hierarchies; it’s the only class in Java that doesn’t extend another class.

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Which is multiple inheritance?

Multiple inheritance is a feature of some object-oriented computer programming languages in which an object or class can inherit features from more than one parent object or parent class . It is distinct from single inheritance, where an object or class may only inherit from one particular object or class.

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