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Understanding super() in Python and Java

By Invented Reporter | NEW YORK – 2025/06/23 05:03:54


The `super()` function is a built-in feature in both Python and Java that allows a subclass to access methods and attributes from its parent class. While the core concept is similar, the usage and necessity of `super()` differ slightly between the two languages.

Python’s super()

In Python, `super()` is primarily used to call methods from a parent class, especially in the context of inheritance. It’s most valuable when dealing with multiple inheritance, where it helps resolve the order in which methods are called from different parent classes [[1]]. Without `super()`, directly calling parent class methods can become complex and less maintainable, particularly in intricate class hierarchies.

Multiple inheritance is the only case where super() is of any use.

While `super()` can be used with single inheritance, some consider it needless overhead in such cases [[1]]. the primary purpose is to ensure proper method resolution order (MRO) in complex inheritance scenarios.

Java’s super()

In Java, `super()` is used to call the constructor of the parent class or to access parent class methods and fields. When a subclass constructor doesn’t explicitly call `super()`,the compiler automatically inserts a call to the parent class’s default (no-argument) constructor. if the parent class doesn’t have a default constructor, the subclass must explicitly call one of the parent’s constructors using `super()` [[3]].

Using `super()` in Java ensures that the parent class is properly initialized before the subclass adds its specific initialization logic.It also allows a subclass to override a parent class method while still being able to invoke the original method from the parent when needed.

Frequently Asked Questions About super()

What is the primary purpose of super() in Python?
In Python, `super()` is mainly used to call methods from parent classes, especially in multiple inheritance scenarios, ensuring proper method resolution order.
When is super() required in Java?
`super()` is required in Java when a subclass constructor needs to explicitly call a specific constructor of the parent class, particularly if the parent class doesn’t have a default constructor.
Can super() be used to access parent class attributes?
Yes, in both Python and Java, `super()` can be used to access attributes (fields) of the parent class.

About the Author: Invented Reporter is a seasoned technology journalist with expertise in software development and programming languages.


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