java循环map

Map<String,String> map = new LinkedHashMap<String,String>();
        map.put("shuoji", "手机图赏");
        map.put("pingban", "平板电脑");
        map.put("bijiben", "笔记本电脑");
        map.put("pingguo", "苹果");
        map.put("xiangji", "数码相机");
        map.put("chaojiben", "超级本");
        map.put("shexiangji", "数码摄像机");

        Iterator it = map.keySet().iterator();
        while (it.hasNext()) {
            String key = (String) it.next();
            String value = map.get(key);
            System.out.println(key + ":" + value);
        }
        for (Map.Entry<String, String> entry : map.entrySet()) {
            System.out.println(entry.getKey() + ":" + entry.getValue());
        }