Sprint 2

public class Main {
    public static void main(String[] args) {

        Task task1 = new Task("Task1", "doTask1");
        Task task2 = new Task("Task2", "doTask2");

        Taskmanager.putTask(task1);
        Taskmanager.putTask(task2);

        Taskmanager.printTask();

        EpicTask epicTask1 = new EpicTask("EpicTask1", "doEpicTask1");

        SubTask subTask1 = new SubTask("SubTask1", "doSubTask1");
        SubTask subTask2 = new SubTask("SubTask2", "doSubTask2");

        Taskmanager.putSubTask(subTask1);
        Taskmanager.putSubTask(subTask2);

        Taskmanager.putEpicTask(epicTask1, Taskmanager.subTask);

        Taskmanager.printEpicTask();

        Taskmanager.printKeys();
        Taskmanager.printValues();

    }
}

import java.util.*;

public class Taskmanager {

    static ArrayList<Object> task = new ArrayList<>();
    static ArrayList<Object> subTask = new ArrayList<>(); // включать в мапу epicTask
    static HashMap<Object, Object> epicTask = new HashMap<>();

    public static void putTask(Object element) {
        task.add(element);
    }

    public static void putSubTask(Object element) {
        subTask.add(element);
    }

    public static void putEpicTask(Object element1, ArrayList list) {
        epicTask.put(element1, list);
    }

    public static void printTask() {
        System.out.println(task);
    }

    public static void printEpicTask() {
        System.out.println(epicTask);
    }

    public static void printKeys() {
        Set<Object> keys = epicTask.keySet();
        System.out.println(keys);
    }

    public static void printValues() {
        Collection<Object> values = epicTask.values();
        System.out.println(values);
    }


}

public class Task {
    String name;
    String description;

    public Task(String name, String description) {
        this.name = name;
        this.description = description;
    }

    @Override
    public String toString() {
        return "Task{" +
                "name='" + name + '\'' +
                ", description='" + description + '\'' +
                '}';
    }
}

public class SubTask extends Task{

    public SubTask(String name, String description) {
        super(name, description);
    }

    @Override
    public String toString() {
        return "SubTask{" +
                "name='" + name + '\'' +
                ", description='" + description + '\'' +
                '}';
    }
}

public class EpicTask extends Task{

    public EpicTask(String name, String description) {
        super(name, description);
    }

    @Override
    public String toString() {
        return "EpicTask{" +
                "name='" + name + '\'' +
                ", description='" + description + '\'' +
                '}';
    }
}