文章目录
map的遍历方法
1.通过Iterator进项遍历
Iterator<Map.Entry<String, String>> it = map.entrySet().iterator();
while (it.hasNext()) {
Map.Entry<String, String> entry = it.next();
System.out.println("key= " + entry.getKey() + " and value= " + entry.getValue());
- 通过Map.entrySet进行遍历
for (Map.Entry<String, String> entry : map.entrySet()) {
System.out.println("key= " + entry.getKey() + " and value= " + entry.getValue());
3 通过 map.values()进行遍历
for (String v : map.values()) {
System.out.println("value= " + v);
}
4通过map.keySet()进行遍历
for (String key : map.keySet()) {
System.out.println("key= "+ key + " and value= " + map.get(key));
}
最推荐第二种
