What is a polymorphism reference?

A polymorphic reference is a variable that can refer to different types of objects at different points in time . It is typically compatible with the class that it refers to. For example, in the following case: Employee employee; The ’employee’ is a reference variable that may refer to an instance of the Employee class.19 Mar 2019

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Where is polymorphism used?

Polymorphism is the ability of an object to take on many forms. The most common use of polymorphism in OOP occurs when a parent class reference is used to refer to a child class object . Any Java object that can pass more than one IS-A test is considered to be polymorphic.

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Where is polymorphism used?

Polymorphism is the ability of an object to take on many forms. The most common use of polymorphism in OOP occurs when a parent class reference is used to refer to a child class object . Any Java object that can pass more than one IS-A test is considered to be polymorphic.

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