What is polymorphism?

[chinmay.sahoo]

Poly stands for “many” and morph stands for “form”.   It simply means the ability of an object to take more then one form.

[SeoDezin]

Polymorphism is an object- oriented programming concept that refers to the ability of a variable , function or object to take on multiple forms .A language that features polymorphism allows developers to program in the general rather than program in the specific.

[Lauraponting]

Polymorphism in Java:
Polymorphism in java is a mechanism  which we can perform a single action by different ways.
 "poly" means many and "morphs" means forms.
There are two types of polymorphism in java: compile time polymorphism and runtime polymorphism.
We can perform polymorphism in java by method overloading and method overriding.
If you overload static method in java, it is the example of compile time polymorphism.
Runtime polymorphism or Dynamic Method Dispatch is a process in which a call to an overridden method is resolved at runtime rather than compile-time.

[richardmsmith]

polymorphism in Java:
The word "poly" means many and "morphs" means forms. So polymorphism means many forms.
There are two types of polymorphism in Java: compile-time polymorphism and runtime polymorphism. We can perform polymorphism in java by method overloading and method overriding.

[EugeneHill]

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.
For instance, suppose there is a class called Animal, and a class called Dog that inherits from Animal.

Polymorphism is the ability to treat any Dog object as an Animal object like so:
Dog* dog = new Dog;
Animal* animal = dog;

[greatshivam]

The word polymorphism means having many forms. In simple words, we can define polymorphism as the ability of a message to be displayed in more than one form.
Real life example of polymorphism, a person at the same time can have different characteristic. Like a man at the same time is a father, a husband, an employee. So the same person posses different behavior in different situations. This is called polymorphism.
Polymorphism is considered as one of the important features of Object Oriented Programming.

In C++ polymorphism is mainly divided into two types:

1:Compile time Polymorphism
2:Runtime Polymorphism

[Lishmalinyjames]

Polymorphism is one of the core concepts in OOP languages. It describes the concept that different classes can be used with the same interface. Each of these classes can provide its own implementation of the interface. Java supports two kinds of polymorphism. You can overload a method with different sets of parameters.

[nisargshah]

Polymorphism comprises of two words : Poly means "many" and morph means "forms". It means we can use multiple method names with the same class. There are two types of polymorphism : Static polymorphism and Dynamic Polymorphism.

Hope this answer helps!

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[saravanan28]

The word polymorphism means having many forms. ... Real life example of polymorphism: A person at the same time can have different characteristic. Like a man at the same time is a father, a husband, an employee. So the same person posses different behavior in different situations. This is called polymorphism.

[Lishmalinyjames]

Polymorphism is one of the core concepts in OOP languages. It describes the concept that different classes can be used with the same interface. Each of these classes can provide its own implementation of the interface. That is called dynamic polymorphism.