学习笔记--阶段总结---Iterator

/** *  */package answer;import java.util.ArrayList;import java.util.Collection;import java.util.Iterator;import java.util.List;/** * @author * @version 创建时间：2010-12-10  下午03:02:15 */public class Doudou {/** * @author  * @version 创建时间：2010-12-10  下午03:02:15 * @param args */public static void main(String[] args) {method1();method2();}public static void method1(){Collection l=new ArrayList();l.add("sadf");l.add("asdfsdf");Iterator p =  (Iterator) l.iterator();while (p.hasNext()){String string=(String)p.next();    System.out.println("------> "+string);}}public static void method2(){Collection l=new ArrayList();l.add("sadf");l.add("asdfsdf");for(Iterator iterator=l.iterator();iterator.hasNext();){String string=(String)iterator.next();    System.out.println("------> "+string);}}}