Type-based Filtering with ArrayList

In this problem, you will create a program that defines an Employee class with subclasses Manager and Developer, reads employee data from standard input into an ArrayList<Employee>, then uses the instanceof operator to filter and count only Developer elements, and displays the result to standard output.

Learning Objective: Understand how to filter elements in ArrayList by type using instanceof

Overview

Create a program that extracts and counts only specific child class elements from a parent class type ArrayList.

Specifications

• Define Employee class and its subclasses Manager, Developer
• Read the number of employees and each employee's data from standard input
• Add employees to ArrayList
• Count Developers using instanceof

Input Format

N
type1 name1
type2 name2
...

• N: number of employees (integer)
• type: employee type (M=Manager, D=Developer)
• name: employee name

Output Format

Total employees: N
Developers: D