遍历集合List

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

/**
 *遍历集合List
 * @author 够潮
 *
 */
public class Demo35 {

    /**
     * @param args
     */
    public static void main(String[] args) {

        List list = new ArrayList();
        list.add("gouchao");
        list.add("gouli");
        //下标
        for(int i = 0 ; i< list.size();i++){

            System.out.println(list.get(i));
        }
        //for- each
        for(Object o:list){
            System.out.println(o);
        }
        //迭代器
        Iterator it = list.iterator();
        while(it.hasNext()){
            System.out.println(it.next());
        }
        //Object数组
        Object o[];
        o = list.toArray();
        for(int i =  0 ; i <o.length;i++){
            System.out.println(o[i]);
        }
        //toString
        System.out.println(list.toString());

    }

}