Java Polymorphism: Compile time vs. Run time. Method Overloading vs. Overriding #17

Java Tutorial for Polymorphism. There are its two types Compile time Polymorphism and Run time polymorphism. Method Overloading is Compile time polymorphism and method overriding is run time polymorphism.

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[BoxerDogs]

Instead of doing Animal animal2 = new Dog(); why wouldn't you use:

Dog animal2 = new Dog();       since animal2 is of the type Dog?

[sangeetakumar]

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[tahajunaid]

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[Tikorungbaka]

When overloading, you must change either the type or the number of parameters for a method.
Method overloading is done to allow us to use the same methods names for multiple methods. The purpose behind this is that, you might have different functionality implementation for the same feature based on the difference in parameters and in that scenario you definitely want the same method names to be able to relate all of them with the feature.

Overriding means that a method inherited from a parent class will be changed. But, when overriding a method everything remains exactly the same except the method implementation. What the method does is changed to fit in with the needs of the child class. But, the method name, the number and types of parameters, and the return type will all remain the same.

[felixgerschner]

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[technophile]

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[kuwoeir]

You were awesome I made me strong understanding the pleomorphism

[shwetatripathi]

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[gs-rceq]

that is ine good explanation on run time polymorphism and upcasting with super class....thank you!!! this cleared a big confusion for me....

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[coderbravo]

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