package de.hanitlg.generics;

import java.util.*;

public class App {

    public static <T extends Comparable<T>> T max(Collection<T> collection) {
        T maxValue = null;
        for (T element: collection) {
            if (maxValue == null) {
                maxValue = element;
            } else {
                if (element.compareTo(maxValue) > 0) {
                    maxValue = element;
                }
            }
        }
        return maxValue;
    }
    public static void main(String[] args) {
        List<Contact> contactList = new ArrayList<>();

        contactList.add(new Contact("Juergen", "Falb"));
        contactList.add(new Contact("Michael", "Strommer"));
        contactList.add(new Contact("Jochen", "Hense"));
        System.out.println("Maximum: " + max(contactList).getFirstName());

        for (Contact c: contactList) {
            System.out.println("Name: " + c.getFirstName() + " " + c.getLastName());
        }

        List<Integer> integerList = new ArrayList<>();
        integerList.add(12);
        integerList.add(45);
        integerList.add(99);
        System.out.println("Maximum: " + max(integerList));

        List<String> stringList = new ArrayList<>();
        stringList.add("Hello");
        stringList.add("World");
        stringList.add("FH");
        System.out.println("Letzter Buchstabe im Alphabet der Liste (Wort): " + max(stringList));

        MyList<Integer> IntegerMyList = new MyList<>();
        IntegerMyList.add(45);
        IntegerMyList.add(366);
        IntegerMyList.add(35);
        for (int i = 0; i < IntegerMyList.getSize(); i++) {
            System.out.println("Element: " + i + IntegerMyList.get(i));
        }

        Map<Integer, Contact> map = new HashMap<>();
        map.put(1001, contactList.get(0));
        map.put(1002, contactList.get(1));
        map.put(1003, contactList.get(2));

        Contact c = map.get(1002);
        System.out.println("Mitarbeiter 1002: " + c.getFirstName());
    }
}