IterableArray.java

import java.util.ArrayList;
import java.util.Iterator;
import java.util.NoSuchElementException;
import java.util.Objects;

public class IterableArray implements Iterable {
    int values[] = {1, 2, 3, 4};

    class MyIterator implements Iterator {
        int current = 0;

        public boolean hasNext() {
            if (current < values.length) {
                return true;
            } else {
                return false;
            }
        }

        public Object next() {
            if (!hasNext()) {
                throw new NoSuchElementException();
            }
            return values[current++];
        }
    }

    public Iterator<Integer> iterator() {
        return new MyIterator();
    }

    public static void main(String[] args) {
        IterableArray myIterable = new IterableArray();
        for (Object s : myIterable) {
            System.out.println(s);
        }
    }
}