步骤 代码实现 importjava.util.Arrays;importjava.util.Comparator;publicclassArraySortReverse{publicstaticvoidmain(String[]args){// Step 1: Declare an integer arrayInteger[]arr={5,2,8,1,3};// Step 2: Use Arrays.sort method to sort the array in reverse orderArrays.sort(arr,newComparator<Inte...
1.Array.sort(数组,起始位置,结束位置)。这个是升序排序。 2.关于数组的降序实现如下: 利用Collections.reverseOrder()方法: importjava.util.Arrays;importjava.util.Collections;publicclassMain {publicstaticvoidmain(String[] args) {int[] a = {9, 8, 7, 2, 3, 4, 1, 0, 6, 5}; Arrays.sort(a...
Array after the use of Collection.reverseOrder() and Arrays.sort() : [40, 30, 20, 10] Java Copy案例3: 当有一个用户定义的比较器进行反向排序时,要按照卷号的降序对学生进行排序。public static Comparator reverseOrder(Comparator c) Java Copy...
// Unsorted string array String[] strArray = {"Alex","Charles","Dean","Amanda","Brian"}; // Sorting the strings Arrays.sort(strArray); // Sorted array System.out.println("Sorted : "+ Arrays.toString(strArray)); Arrays.sort(strArray, Comparator.reverseOrder()); // Reverse Sorted ar...
Java语言提供给我们Array.sort(int [] arr)对数组进行升序排列,代码如下: package song; import java.util.Arrays; public class Testexample { public static void main(String[] args) { int[] a = {9, 8, 7, 2, 3, 4, 1, 0, 6, 5}; ...
String s[] = in.readLine().split(" ");// 读入数据Arrays.sort(s,newComparator<String>() {// 排序publicintcompare(String a, String b){if(a.length() == b.length()){// 如果长度相等则直接比较字典序returna.compareTo(b); }else{// 长度长的一定大returna.length() - b.length(); ...
Arrays.sort(a, Collections.reverseOrder()); sorts the array in reverse-lexicographic (alphabetical) order. The returned comparator is serializable. Java documentation forjava.util.Collections.reverseOrder(). Portions of this page are modifications based on work created and shared by theAndroid Open ...
②使用Arrays.sort(数组名)语法对数组进行排序,排序规则是从小到大,即升序。 降序主要是利用Collections.reverseOrder()方法。具体我们看代码吧~ 四、实战 1、 2、 3、 4、 源码 1、 代码语言:javascript 代码运行次数:0 运行 AI代码解释 package array; public class yiwei { public static void main(Stri...
2. SortArrayListin Natural (Ascending) Order Thesort()is part of theListinterface and has been implemented inArrayListclass since Java 8. It takes aComparatorinstance used for enforcing the sorting order. Note thatArrayList.sort()method does the in-place sorting i.e. it modifies the original...
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 ...