本帖最后由 Kevin.Kang 于 2015-7-17 14:43 编辑
- package com.kxg_Iterator;
- import java.util.ArrayList;
- import java.util.Iterator;
- import java.util.List;
- //List创建集合,并遍历
- public class IteratorDemo {
- public static void main(String[] args) {
- List<String> list = new ArrayList<String>();
- list.add("sutdy");
- list.add("java");
- list.add("android");
- // 迭代器遍历
- Iterator<String> i = list.iterator();
- while (i.hasNext()) {
- String s = i.next();
- System.out.println(s);
- }
- System.out.println("============");
- // for循环遍历
- for (int x = 0; x < list.size(); x++) {
- String s = list.get(x);
- System.out.println(s);
- }
- System.out.println("============");
- // 增强for循环遍历,底层还是迭代器
- for (String s : list) {
- System.out.println(s);
- }
- }
- }
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