Java Stream 常见场景用法

常见的Stream用法代码

收集常用的Stream常见可用场景

1. 类型转换，String To List<Long>

类型转换

String numbers = "1,2,3,4";
List<Long> nums = Arrays.stream(numbers.split(",")).map(a -> Long.parseLong(a)).collect(Collectors.toList());

2. for循环

循环

List<String> list = getList();
list.stream().forEach(x -> {
    System.print.out(x);
});