Mastering the ‘super’ Keyword in Java: A Comprehensive Guide
Introduction:
In the realm of Java programming, understanding the nuances of keywords is paramount, and the ‘super’ keyword holds a special place when it comes to building robust class hierarchies. This comprehensive guide is crafted to unravel the intricacies of the ‘super’ keyword, delving into its various use cases, significance, and the seamless interplay it fosters between parent and child classes. As we embark on this journey, we’ll dissect each line of code with clarity and precision, providing you with a deep understanding of how to wield the ‘super’ keyword effectively.
Understanding the ‘super’ Keyword:
1. Basics of ‘super’:
The ‘super’ keyword, denoted by the ‘@’ symbol in Java, acts as a reference variable, establishing a crucial link between a child class and its immediate parent class. This reference variable is employed to refer to the parent class object, enabling the child class to inherit properties, methods, and behaviors from its superclass. Let’s delve into a basic example to illustrate the foundational usage of the ‘super’ keyword.
class Parent {
int parentVar = 10;
}
class Child extends Parent {
int childVar = 20;
void display() {
System.out.println("Child Variable: " + childVar)…