Polymorphism is a programming concept that refers to the ability of an object to take on multiple forms. An object can take on different forms when it is accessed through different interfaces. For example, a single object can be accessed as a member of a class, as an element in an array, or as a parameter to a method.
Polymorphism is a powerful concept that enables developers to write code that is more flexible and easier to maintain. When an object can take on multiple forms, it is easier to reuse code and to change the behavior of an object without having to change the code that uses it.
Polymorphism is often used in conjunction with inheritance, which is another powerful concept in object-oriented programming. Inheritance enables developers to create new classes that are based on existing classes. This enables code reuse and makes it easier to create new objects that are compatible with existing code.
Polymorphism and inheritance are two of the main concepts that make object-oriented programming such a powerful tool. Together, they enable developers to write code that is more flexible and easier to maintain.
What do you mean by polymorphism?
Polymorphism is the ability of an object to take on many different forms. The most common form of polymorphism is inheritance, where a child class inherits the methods and properties of its parent class. However, polymorphism can also be achieved through interfaces, which allow a class to implement multiple interfaces.
What is the polymorphism in oops?
Polymorphism is a feature in object-oriented programming (OOP) that allows objects of different types to share the same interface. This means that objects of different types can be used interchangeably, without the need for explicit conversion.
Polymorphism is often referred to as the ability to "override" methods. This means that a base class method can be redefined in a derived class, resulting in different behavior when the method is called.
What are the 4 types of polymorphism?
There are four types of polymorphism in programming:
1. Static polymorphism
2. Dynamic polymorphism
3. Ad-hoc polymorphism
4. Parametric polymorphism
1. Static polymorphism is also called early binding. In this type of polymorphism, the compiler knows which function to call at compile time. This is done by using function overloading. Function overloading means having two or more functions with the same name but with different signatures. The signature of a function includes the number of parameters, the type of parameters, and the order of parameters.
2. Dynamic polymorphism is also called late binding. In this type of polymorphism, the compiler doesn't know which function to call at compile time. This is done by using function overriding. Function overriding means having two or more functions with the same name and signature but with different implementations. The function that is called is determined at runtime.
3. Ad-hoc polymorphism is a type of polymorphism where different functions can be called with the same name but with different types of arguments. This is done by using function overloading.
4. Parametric polymorphism is a type of polymorphism where functions can be written that take arguments of any type. This is done by using templates.
Why is polymorphism used?
Polymorphism is used in programming to refer to the ability of a variable or object to take on multiple forms. For example, in an object-oriented programming language like Java, a variable of type Object can refer to any object, regardless of its type. This is possible because all objects in Java inherit from the Object class. So, a variable of type Object can be used to refer to any object, and the actual type of the object will be determined at runtime.
Polymorphism is used to provide a way to write code that is more flexible and can be applied to a wider range of situations. It also makes code easier to read and understand, since the meaning of a particular piece of code can be determined by looking at the types of the objects involved, rather than the specifics of the implementation.