一、遍历List
代码示例
public static void main(String[] args) {
List list = Arrays.asList("北", "上", "广", "深");
list.forEach(System.out::println);
}
输出结果:
二、遍历Map
代码示例
public static void main(String[] args) {
HashMap map = new HashMap<>();
map.put("姓名", "张三");
map.put("年龄", "12");
map.put("地址", "月球");
map.forEach((k, v) -> System.out.println(k + ":" + v));
}
输出结果:
Original: https://www.cnblogs.com/CodeLuckly/p/16859940.html
Author: CodeLuckly
Title: JAVA8-Lambda-forEach遍历List/Map
原创文章受到原创版权保护。转载请注明出处:https://www.johngo689.com/713677/
转载文章受原作者版权保护。转载请注明原作者出处!