Q.What is method overriding? Explain the role of the super keyword, giving a short example.

Overriding lets a child give its own version of an inherited method; super lets it still reach the parent's version. …

Method overriding. When a child class defines a method with the same name and same parameters as a method in its parent, the child's version replaces the parent's for objects of the child class. This is called overriding, and it lets each child behave differently while sharing a common method name — the basis of polymorphism.

The super keyword. Sometimes the child wants to add to the parent's behaviour rather than throw it away. The keyword super refers to the parent class, so super.methodName() runs the parent's original version from inside the child.

Example:

class Person {
    void introduce() {
        System.out.println("I am a person");
    }
}

class Student extends Person {
    void introduce() {                 // overrides the parent method
        super.introduce();             // first run the parent's version
        System.out.println("...and a student");
    }
}

public class Demo {
    public static void main(String[] args) {
        new Student().introduce();
        // Output:
        // I am a person
        // ...and a student
    }
}
``` …

Confusing overriding with overloading — overloading is several methods with the same name but different parameters in the same class, while overriding is a child redefining a parent method with the same signature. Also t …