new Comparator<String>() { public int compare(String o1, String o2) { if (o1.contains("_") && o2.contains("_")) { return compare(o1.substring(1), o2.substring(1)); } if (o1.contains("_")) { return -1; } if (o2.contains("_")) { return 1; } return - o1.compareTo...
Don't worry, you don't need to create your ownComparator; in fact, you can use theCollections.reverseOrder()method, which returns a reverse order comparator that can be used to sort an ArrayList on descending order in Java. importjava.util.*; class Main {publicstaticvoidmain(String[] arg...
String fruitName1 = fruit1.getFruitName().toUpperCase(); String fruitName2 = fruit2.getFruitName().toUpperCase(); //ascending order return fruitName1.compareTo(fruitName2); //descending order //return fruitName2.compareTo(fruitName1); } }; } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10....
importjava.util.stream.Stream;publicclassMain{publicstaticvoidmain(String[]args){Stream<Integer>numStream=Stream.of(1,3,5,4,2);numStream.sorted().forEach(System.out::println);}} Program output. Output 12345 3.2. Descending Order To sort in reverse order, useComparator.reverseOrder()insorted(...
First, in ascending order: int[] arr2 = ... Arrays.sort(arr2); Unfortunately, there's no way to sort in-place in descending order using a single-line operation. You will need to sort ascending first, then reverse the array: int[] arr2 = ... Arrays.sort(arr2); int size = ...
ListSort1.java import java.util.Comparator; import java.util.List; public class ListSort1 { public static void main(String[] args) { List<Student> students = Student.getStudents(); System.out.println("--- Sort by name in ascending order ---"); ...
/*Java Program to Sort an Array in Descending Order*/ import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner sc=new Scanner(System.in); int n; //Array Size Declaration System.out.println("Enter the number of elements :"); ...
Naturally, the sorting order sorts tasks byidfield. publicrecordTask(longid,Stringname,booleanstatus)implementsComparable<Task>{@OverridepublicintcompareTo(Taskother){returnLong.compare(other.id,this.id);}} For custom ordering, we can createComparatorinstances having theappropriate sorting logic. For ...
publicstaticclassStudent{publicString name;publicintage;publicStudent(String name,intage){this.name = name;this.age = age; }@OverridepublicStringtoString(){return"{name:"+ name +",age:"+ age +"}"; } } 然后实现一个排序类SortByNameAge,在compare方法中定义排序规则 ...
*in Java. * Collections.sort() method is used for sorting collection and Collections.reverseOrder() * will sort elements of Collections in descending order. * @author Javin Paul */ publicclassCollectionSortingExample{ publicstaticvoidmain(Stringargs[])throwsInterruptedException{ ...