java lamda

List list = new ArrayList();
list.add(new Person(“1001”, “小A”));
list.add(new Person(“1002”, “小B”));
list.add(new Person(“1003”, “小C”)); System.out.println(list); //将list转换map Map<String, String> map = list.stream().collect(Collectors.toMap(Person::getId, Person::getName));

1. List result = staff.stream().map(temp -> {
2. ​ StaffPublic obj = new StaffPublic();
3. ​ obj.setName(temp.getName());
4. ​ obj.setAge(temp.getAge());
5. ​ if (“mkyong”.equals(temp.getName())) {
6. ​ obj.setExtra(“this field is for mkyong only!”);
7. ​ }
8. ​ return obj;
9. ​ }).collect(Collectors.toList());