package app;

import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;

public class Main {

    public static void main(String[] args) {
        Persona persona = new Persona("gonzalo",34,"1");
        Persona persona2 = new Persona("gaston",30,"2");
        Persona persona3 = new Persona("gerardo",30,"3");

        Persona persona4 = new Persona("gabriel",30,"1");

        System.out.println(persona.hashCode());
        System.out.println(persona2.hashCode());
        System.out.println(persona4.hashCode());

        HashSet<Persona> hashSet = new HashSet<Persona>();

        hashSet.add(persona);
        hashSet.add(persona2);
        hashSet.add(persona3);
        hashSet.add(persona4);

        System.out.println(hashSet);

        Iterator<Persona> iterator = hashSet.iterator();
        while (iterator.hasNext())
        {
            System.out.println(iterator.next());
        }

        Persona mayor = Collections.max(hashSet);
        System.out.println("Mayor es "+mayor.getNombre());
        Persona menor = Collections.min(hashSet);
        System.out.println("Menor es "+menor.getNombre());

        HashMap<String, Persona> hashMap = new HashMap<String, Persona>();

        hashMap.put(persona.getDNI(), persona);
        hashMap.put(persona2.getDNI(), persona2);
        hashMap.put(persona3.getDNI(), persona3);

        if (!hashMap.containsKey(persona4.getDNI()))
        {
            hashMap.put(persona4.getDNI(), persona4);
        }
        else
        {
            System.out.println("clave repetida");
        }

        if (hashMap.containsKey("1"))
        {
            System.out.println(hashMap.get("1").getNombre());
        }

        if (hashMap.containsKey("1"))
        {
            hashMap.remove("1");
        }

        Iterator<Map.Entry<String, Persona>> filas = hashMap.entrySet().iterator();

        while (filas.hasNext())
        {
            Map.Entry<String, Persona> entrada = filas.next();
            System.out.println("Clave "+entrada.getKey());
            System.out.println("Valor "+entrada.getValue());
        }



    }

}