CollectionsIteratorApplication.java

package com.designingmicroservices;

import java.util.ArrayList;
import java.util.Collection;

/**
 * 
 * @author DesigningMicroservices.com
 *
 */
public class CollectionsIteratorApplication {

	public static void main(String[] args) {

		Collection<String> collection1 = new ArrayList<String>();
		collection1.add("zero");
		collection1.add("one");

		Collection<String> collection2 = new ArrayList<String>();
		collection2.add("2.zero");
		collection2.add("2.one");
		collection2.add("2.two");

		Collection<Collection<String>> col = new ArrayList<Collection<String>>();
		col.add(collection1);
		col.add(collection2);

		CollectionsIterator<String> iterator = new CollectionsIterator<String>(col);

		// while loop
		while (iterator.hasNext()) {
			System.out.println("value= " + iterator.next());
		}

	}
}