Java 8 中的 Streams API 详解

https://www.ibm.com/developerworks/cn/java/j-lo-java8streamapi/index.html

  1. //数据模型
  2. //员工
  3. public class Employee {
  4.     private Integer id;
  5.     private String name;
  6.     private Integer sex; //0男1女
  7.     private Integer age;
  8.     private String job;
  9.     private Double salary;//薪水
  10.     private BigDecimal bonus;//奖金
  11.     private Company company;
  13.     public Double getCost() {
  14.         return bonus.doubleValue() + salary;
  15.     }
  16. }
  17. //公司
  18. public class Company {
  19.     private String address;
  20. }
  21. //筛选
  22. List<String> collect = list.stream().map(Employee::getName).collect(Collectors.toList());