Template method with abstract class

In this problem, you will create a program that defines a template method generate() and abstract methods in the Report abstract class, implements the specific processing in the subclass SalesReport, and displays the result to standard output.

Learning Objective: Understand the Template Method Pattern where a concrete method in an abstract class calls abstract methods

Overview

Create a Report abstract class with a concrete method generate() that defines the processing flow, and abstract methods for each step. SalesReport class implements the specific processing.

Specifications

1. Define in Report abstract class:
   • abstract String getTitle(): returns the report title
   • abstract String getContent(): returns the report body
   • Concrete method generate(): combines title and content for output
2. generate() outputs in this format:
   • === <title> === (line 1)
   • <content> (line 2)
   • === End === (line 3)
3. SalesReport returns Sales Report from getTitle() and Total: 1500 from getContent()

Output Format

=== Sales Report ===
Total: 1500
=== End ===