package iteratory;

import java.util.*;

class Lista implements Iterable<Integer> {

    ArrayList<Integer> dane = new ArrayList<Integer>();

    Lista() {
        Random r = new Random();
        for (int i = 0; i < 10; ++i) {
            dane.add(r.nextInt(30));
        }
    }

    public String toString() {
        return "" + dane;
    }

    class ITERATOR implements Iterator<Integer> {

        int pozycja = 0;

        @Override
        public boolean hasNext() {
                return pozycja < dane.size();
        }

        @Override
        public Integer next() {
            return dane.get(pozycja++);
        }

        @Override
        public void remove() {
            throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
        }
    }

    @Override
    public Iterator<Integer> iterator() {
        return new ITERATOR();
    }
}

public class Iteratory {

    public static void main(String[] args) {
        Lista L = new Lista();
        System.out.println(L);

        for (Integer i : L) {
            System.out.print(i + ", ");
        }
        System.out.println();

        for (Integer i : L) {
            System.out.print(i + "; ");
        }
        System.out.println();

        Iterator<Integer> it = L.iterator();
        while (it.hasNext())
            System.out.print(it.next() + ", ");
        System.out.println("KONIEC");

        it = L.iterator();
        while (it.hasNext())
            System.out.print(it.next() + ", ");
        System.out.println();


    }

}