import java.util.ArrayList;
import java.util.Iterator;

class Feb8 {
	public static void main(String[] args) {

		ArrayList<Integer> list = new ArrayList<>();
	
		list.add(10);
		list.add(2);
		list.add(34);

		for(Integer i : list) {
			System.out.println(i);
		}		

		Iterator<Integer> it = list.iterator();

		while(it.hasNext()) {
			Integer i = it.next();
			System.out.println(i);
		}


		Triple triple = new Triple("one", "two", "tree");

		Iterator<String> it2 = triple.iterator();

		while(it2.hasNext()) {
			String s = it2.next();
			System.out.println(s);
		}
		
		for(String s : triple) {
			System.out.println(s);
		}

		Stack<Integer> stack = new Stack<Integer>(10);
		stack.push(1);
		stack.push(2);
		stack.push(3);

		for(Integer i : stack) {
			System.out.println(i);
		}	


	}
}