super Call in method Chain

In this problem, you will create a program that uses the super keyword across a 3-level class hierarchy (Grandparent→Parent→Child) to chain parent method calls, reading each level's name from standard input and displaying messages in sequence.

Learning Objective: Understand method chaining with super in inheritance hierarchy

Overview

Read 3 names from standard input and create a program with 3-level class inheritance where each level calls methods via super, stacking processing.

Input

3 lines of strings (names corresponding to the Grandparent, Parent, and Child classes)

Specifications

• Grandparent class has a name field, a constructor (accepting a name), and greet() method (outputs "Hello from {name}")
• Parent class extends Grandparent, constructor accepts 2 names, overrides greet() (calls super.greet() then outputs "Hello from {parentName}")
• Child class extends Parent, constructor accepts 3 names, overrides greet() (calls super.greet() then outputs "Hello from {childName}")
• Read 3 names from Scanner in Main and call greet() on a Child instance

Input/Output Example

Input:
Grandparent
Parent
Child

Output:
Hello from Grandparent
Hello from Parent
Hello from Child