public void add(T element) { if (!(element instanceof Comparable)) { throw new NonComparableElementException("OrderList"); } Comparable<T> comparableElement = (Comparable<T>) element; if (size() == list.length) expandCapacity(); int scan = 0; while (scan < rear && comparableElement.c...
add(new Student("小鸡",5)); list.add(new Student("小狗",2)); //使用Collections集合工具类进行排序 Collections.sort(list, new Comparator<Student>() { @Override public int compare(Student o1, Student o2) { //升序排序,降序反写 return o1.getAge()-o2.getAge(); } }); for (Student ...
使用Stream API对List进行排序 在Java 8中,Stream API提供了sort()方法来对List进行排序,示例代码如下: List<Integer>list=newArrayList<>();list.add(3);list.add(1);list.add(2);List<Integer>sortedList=list.stream().sorted().collect(Collectors.toList());System.out.println(sortedList);// [1, 2...
使用stream().sorted()进行排序要求StudentInfo类实现Comparable接口，其中需实现compareTo方法。具体实现如以下代码：StudentInfo类定义 添加测试数据 示例测试数据如下：//测试数据，请忽略数据严谨性List studentList =newArrayList<>();studentList.add(newStudentInfo("李小明",true,18,1.76,LocalDate.of...
]args){//创建并初始化ListList<Person>list=newArrayList<Person>(){{add(newPerson(1,30,"北京"));add(newPerson(2,20,"西安"));add(newPerson(3,40,"上海"));}};//使用Stream排序list=list.stream().sorted(Comparator.comparing(Person::getAge).reversed()).collect(Collectors.toList...
List<Integer> list = new ArrayList<>(); list.add(3); list.add(2); list.add(1); List<Integer> sortedList = list.stream().sorted().collect(Collectors.toList()); System.out.println(sortedList);//输出结果为:[1, 2, 3] public static void main(String[] args) { Person[] people =...
add(newPerson(60,"青海")); }};//从小到大正序list = list.stream() .sorted(Comparator.comparing(Person::getAge)) .collect(Collectors.toList());//从大到小逆序// list = list.stream()// .sorted(Comparator.comparing(Person::getAge).reversed())// .collect(Collectors.toList());//从大到...
List<Integer> list1 = Arrays.asList(10, 50, 5, 14, 16, 80); System.out.println(list1.stream().sorted().collect(Collectors.toList())); List<Integer> list2 = Lists.newArrayList(); list2.addAll(list1); Collections.sort(list2); ...
studentList.add(newStudentInfo("陈小跑",false,17,1.67,LocalDate.of(2002,10,18))); 排序 使用年龄进行升序排序 //排序前输出StudentInfo.printStudents(studentList);//按年龄排序(Integer类型)List studentsSortName = studentList.stream().sorted(Comparator.comparing(StudentInfo::getAge)).collect(Collectors...
studentList.add(new StudentInfo("陈小跑",false,17,1.67,LocalDate.of(2002,10,18))); 使用年龄进行升序排oozdWF序 //排序前输出 StudentInfo.printStudents(studentList); //按年龄排序(Integer类型) ListstudentsSortName = studentList.stream().sorted(Comparator.comparing(StudentInfo::getAge)).collect(...