In one of the previous examples, we covered how to sort an ArrayList in ascending order. In this post, you will learn how to sort ArrayList in descending order in Java. We will explore the following ways: Using the sort() method Using the Collections.sort() and Collections.reverse() ...
//Create ArrayListArrayList<Task>arrayList=newArrayList<>();//Add itemsarrayList.add(newTask(1,"One",true));arrayList.add(newTask(2,"Two",false));arrayList.add(newTask(3,"Three",true));arrayList.add(newTask(4,"Four",false));arrayList.add(newTask(5,"Five",true)); 2. SortArrayListin...
Java version:1.8+ More Examples Example Use a lambda expression to sort a list in reverse alphabetical order: importjava.util.ArrayList;publicclassMain{publicstaticvoidmain(String[]args){ArrayList<String>cars=newArrayList<String>();cars.add("Volvo");cars.add("BMW");cars.add("Ford");cars.add...
In Java, we can sort a list in-place or we can return a new sorted list. default void sort(Comparator<? super E> c) TheList.sortmethod sorts the list according to the order induced by the specifiedComparator. The sort is stable. The method modifies the list in-place. Stream<T> sort...
排序后的List对象可以直接使用,比如输出排序后的结果或者进行其他操作。 以上代码首先创建了一个包含整数的ArrayList,然后使用Collections.sort方法和Comparator.reverseOrder()对其进行倒序排序,并输出了排序前后的List。 希望这能帮助你理解如何在Java中对List进行倒序排序。如果你有任何进一步的问题,请随时告诉我。
1.1. Sorting an ArrayList of Strings Java program to sort a list of strings lexicographically (in the dictionary order). Sorting list of strings in default order List<String>names=Arrays.asList("Alex","Charles","Brian","David");//Prints - [Alex, Brian, Charles, David]Collections.sort(name...
importjava.util.Comparator;publicclassReverseComparatorimplementsComparator<Integer>{@Overridepublicintcompare(Integero1,Integero2){// 倒序排序returno2.compareTo(o1);}} 1. 2. 3. 4. 5. 6. 7. 8. 9. 3.3 对List进行倒序排序 importjava.util.ArrayList;importjava.util.Collections;importjava.util.List...
In Java, thesort()method can be customized to perform sorting in reverse order using theComparatorinterface. Example: Sorting in Descending Order importjava.util.ArrayList;importjava.util.Collections;importjava.util.Comparator;classMain{publicstaticvoidmain(String[] args){// Creating an array listArr...
为了方便对 ArrayList 中的元素进行排序,Java 提供了 ArrayList 的 sort() 方法。 2.ArrayList 的 sort() 方法 ArrayList 的 sort() 方法用于对 ArrayList 中的元素进行排序。它可以接收一个 Comparator 参数,用于自定义排序规则。如果没有提供 Comparator 参数,sort() 方法将按照元素的自然顺序进行排序。 3.sort...
import java.util.Arrays; import java.util.Scanner; public class Main{ public static void main(String[]args) { Scanner sc=new Scanner(System.in); int arr[]= {1,6,8,7,9}; Arrays.sort(arr); for(int i:arr) { System.out.println(i+" "); ...