Template method Pattern with final

In this problem, you will create a program that reads a report name from standard input, implements the SalesReport class extending AbstractReport, uses a final method to protect the algorithm skeleton via the Template Method Pattern, calls collectData(), processData(), and formatOutput() in sequence inside generateReport(), and displays the result to standard output.

Learning Objective: Understand Template Method Pattern using final methods

Overview

Implement the Template Method Pattern where the algorithm skeleton is protected with a final method while details are implemented in child classes.

Input

Report name (e.g. Sales, Inventory, Customer)

Specifications

• AbstractReport class has a name field received via constructor
• Define final void generateReport() in AbstractReport class
  • Internally calls collectData(), processData(), formatOutput() in order
  • These are defined as abstract methods
• SalesReport class extends AbstractReport and implements each method using name
• Main reads the report name with Scanner and tests report generation

Output Format

Collecting [name] data...
Processing [name] data...
Formatting [name] report...
Report generated!

Sample Input/Output

Input:

Sales

Output:

Collecting Sales data...
Processing Sales data...
Formatting Sales report...
Report generated!