userList.add(newUser(6,"open",16,1)); userList.add(newUser(7,"open",18,1)); userList.add(newUser(8,"open",19,2)); userList.add(newUser(9,"open",21,2)); userList = userList.stream().sorted(Comparator.comparing(User::getStatus).thenComparing(User::getAge).reversed()).collec...
flatMap——接收一个函数作为参数,将流中的每个值都换成另一个流,然后把所有流生成一个流。 // 将字符串转换为字符,并将字符放进list返回static Stream filterCharcter(String string){ List list = new ArrayList<>(); for (Character ch : string.toCharArray()){ list.add(ch); } return list.stream(...
importjava.util.Arrays;importjava.util.List;importjava.util.stream.Collectors;importjava.util.stream.Stream;publicclassPailiezuhe{publicstaticvoidmain(String[]args){List<String>list=Arrays.asList("abcd".split(""));System.out.println(permutationNoRepeat(list,2));}//list是返回的结果集,length是要...
aHave faith in yourself, but the new moon in Gemini on the 28th shows that it is time to start fresh in terms of how you arrange your life in order to feel a sense of value and worthiness. You may have to take a new look at your income stream and financial structure also. 有信念...