import java.util.List; public class DescendingSortExample { public static void main(String[] args) { Integer[] array = {5, 2, 9, 1, 5, 6}; // 方法一:使用Arrays.sort()和自定义Comparator Arrays.sort(array, new Comparator<Integer>() { @Override public int compare(Integer o1, Integer ...
// 排序方法publicstaticvoidsortArrayDescending(int[]array){intn=array.length;// 外层循环控制排序的趟数for(inti=0;i<n-1;i++){// 假设当前的最大值是当前位置intmaxIndex=i;// 内层循环寻找未排序部分的最大值for(intj=i+1;j<n;j++){if(array[j]>array[maxIndex]){maxIndex=j;// 更新最...
import java.util.Arrays; public class SortDescendingLambdaExample { public static void main(String[] args) { int[] nums = {4, 32, 45, 32, 65, 32, 2}; Integer[] numsInteger = Arrays.stream(nums).boxed().toArray(Integer[]::new); // 使用Lambda表达式和Comparator接口实现从大到小的排序...
importjava.util.Arrays;publicclassArraySortDescending{publicstaticvoidmain(String[]args){int[]array={5,2,7,1,9};Arrays.sort(array);int[]reversedArray=newint[array.length];for(inti=0;i<array.length;i++){reversedArray[i]=array[array.length-1-i];}System.out.println("原数组:"+Arrays.toSt...
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 example, we can sort the tasks by the name field....
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() ...
int[] work, int workBase, int workLen) { // Use Quicksort on small arrays if (right - left < QUICKSORT_THRESHOLD) { sort(a, left, right, true); return; } /* * Index run[i] is the start of i-th run * (ascending or descending sequence). ...
Unsorted ArrayList:[France,USA,India,Spain,England]Sorted ArrayListinAscending Order:[England,France,India,Spain,USA]Sorted ArrayListinDescending Order:[USA,Spain,India,France,England]Tests run:1,Failures:0,Errors:0,Skipped:0,Time elapsed:0.001sec-inguru.springframework.blog.sortarraylis ...
65//选择排序对数据进行降序排序(int)66publicstaticvoidselectSortDescendingArray(int[] arr){67for(inti = 0; i<arr.length-1;i++){//i<arr.length-1;最后一个不用比较68for(intj = i+1;j<arr.length;j++){69if(arr[i]<arr[j]){70inttemp =arr[j];71arr[j] =arr[i];72arr[i] =...
int[]array={5,3,2,7,1}; 1. 步骤二:实现Comparator接口 为了实现降序排序,我们需要实现Comparator接口,重写compare方法来指定降序排序的规则。接下来,我们创建一个名为DescendingComparator的类,实现Comparator接口,并重写compare方法。 importjava.util.Comparator;classDescendingComparatorimplementsComparator<Integer>{@...