PARAMETIC POLYMORPHISM JAVA CODE

Polymorphism makes use of these ways to do different things. Polymorphism means “ many forms,” and it happens when there are a lot of classes that inherit from each other.Īs we said in the last chapter, inheritance lets us use the properties and methods of one class in another. Before, polymorphism happened when different types interact with each other using the object class or functions. It happens when a type is changed into a different type. Polymorphic functions in ML and generics in Java 5 are just two examples.Ĭoercion polymorphism is when one type changes directly into another.

PARAMETIC POLYMORPHISM JAVA CODE

This type of code is called parametric code because it depends on the type of the arguments. Parametric polymorphism is when code is written without knowing the type of the arguments. This is when the same function name is used for functions with different kinds of parameters.

It is usually used to describe code that looks polymorphic to the programmer but isn’t in reality. Using the subsumption rule, subtype polymorphism gives a single term many types.įor example, a function with the argument can operate on any value whose type is a subtype of. 4 kinds of polymorphism 4 Kinds of Polymorphism in Modern Languages 1.

Modern languages often use different kinds of polymorphism. The same field in another object could be of type String, and the same method could return a String. This piece’s code is parametric in the type of the parameters.Ī field in one object could be of type Double, which wraps a double value. Parametric polymorphism Java is a term for code that is written without knowing the actual type of the arguments.

Parametic polymorphism java