map 遍历

// 创建一个Map
Map<String, Object> infoMap = new HashMap<>();
infoMap.put("name", "zhagnsan");
infoMap.put("age", "12");
// 传统的Map迭代方式
for (Map.Entry<String, Object> entry : infoMap.entrySet()) {
System.out.println(entry.getKey() + "：" + entry.getValue());
}
// JDK8的迭代方式
infoMap.forEach((key, value) -> {
System.out.println(key + "：" + value);
});

 

JAVA中遍历Map的四种方法-大容量Map迭代推荐

https://blog.csdn.net/yueaini10000/article/details/78933289