Solution: The Employee Payroll System

class Employee {
    protected String name;
    protected double baseSalary;
    public Employee(String name, double baseSalary) {
        this.name = name;
        this.baseSalary = baseSalary;
    }
    public double calculateSalary() {
        return baseSalary;
    }
}
class Manager extends Employee {
    public Manager(String name, double baseSalary) {
        super(name, baseSalary);
    }
    @Override
    public double calculateSalary() {
        return baseSalary * 1.2;
    }
}
class Intern extends Employee {
    public Intern(String name, double baseSalary) {
        // We must satisfy the parent contract
        super(name, baseSalary);
    }
    @Override
    public double calculateSalary() {
        // We completely replace the logic to return a fixed stipend
        return 500.0;
    }
}
public class Main {
    public static void main(String[] args) {
        Employee mgr = new Manager("Alice", 70000); 
        Employee intern = new Intern("Bob", 20000);
        System.out.println("Manager Pay: " + mgr.calculateSalary());
        System.out.println("Intern Pay: " + intern.calculateSalary());
    }
}