遍历集合List几种方式

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());

}

}