2,8,1,3};// Step 2: Use Arrays.sort method to sort the array in reverse orderArrays.sort(arr,newComparator<Integer>(){@Overridepublicintcompare(Integero1,Integero2){returno2.compareTo(o1);// Step 5: Return
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...
importjava.io.*;importjava.util.*;publicclassMain{// 输入输出模板staticBufferedReaderin=newBufferedReader(newInputStreamReader(System.in));staticBufferedWriterout=newBufferedWriter(newOutputStreamWriter(System.out));staticintn;publicstaticvoidmain(String[] args)throwsIOException { n = Integer.parseInt(in...
2.Array.sort(int[]a,int fromIndex,int toIndex) 这种形式是对数组的部分排序,也就是数组a从fromIndex到toIndex-1的元素进行排序。即【)左开右闭区间。也是升序排列。 import java.util.Arrays; public class Main { public static void main(String[] args) { int[] a = {9, 8, 7, 2, 3, 4, 1...
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...
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：import java.util.Arrays;import java.util.Collections;public class Main { public static void main(String[] args){ int[] a = {9, 8, 7, 2, 3, 4, 1, 0, 6, ...
Sorting an Array 1. 数字排序 int[] intArray = new int[] { 4, 1, 3, -23 }; Arrays.sort(intArray); 输出: [-23, 1, 3, 4] 2. 字符串排序,先大写后小写 String[] strArray = new String[]{ "z", "a", "C ...
2.1. Ascending Order Java program to sort an array of integers in ascending order usingArrays.sort()method. //Unsorted arrayInteger[]numbers=newInteger[]{15,11,...};//Sort the arrayArrays.sort(numbers); 2.2. Descending Order Java providesCollections.reverseOrder()comparatorto reverse the defaul...
public int compare(Card o1, Card o2) { return Comparator.comparing(Card::rank) .thenComparing(Card::suit) .compare(o1, o2); } } We define an external comparator, which implements theComparatorinterface and defines thecomparemethod. $ java Main.java ...
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 listArra...