Polymorphism in Method Parameters

In this problem, you will create a program that defines a print(Document doc) method in the Printer class accepting a parent class type parameter, reads document types from standard input, and creates appropriate child class instances (PDF, WordDocument) to demonstrate polymorphism.

Learning Objective: Understand how using parent class type in method parameters provides flexibility

Overview

Define a method with parent class type parameter, read document types from input, and confirm different child class instances can be passed to the same method.

Specifications

• Define print(Document doc) method in Printer class
• Define getContent() method in Document class (returns "Generic document")
• PDF and WordDocument classes extend Document and override getContent()
• Use Scanner to read N (document count), then N lines of document types ("PDF" or "Word")
• Create the appropriate instance for each type and print via Printer

Input Format

N
type1
type2
...

• Line 1: number of documents N
• Subsequent lines: document type ("PDF" or "Word") for each

Output Format

Printing: PDF content
Printing: Word content