栈和队列

package mianshiti;
import java.util.*;
public class Stacks {
	static String[] months={"January","February","March","April","May","June","July","August",
		"September","October","November","December"};
	
	public static void main(String[] args) {
		Stack stk=new Stack();
		for(int i=0;i<months.length;i++){
			stk.push(months[i]+"");
		}
		System.out.println("stk="+stk);
		stk.addElement("The last line");//在末尾添加元素
		System.out.println("element 5="+stk.elementAt(5));
		System.out.println("popping elements:");
		while(!stk.empty())
			System.out.println(stk.pop());	
	}
}