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<Integer>(){@Overr...
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...
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...
3.2 创建Comparator对象 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...
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...
Below is an example of a sorted stream in reverse order. importjava.util.*;publicclassStreamCompareToExample{// Main functionspublicstaticvoidmain(String[]args){// Creating listList<coordinate>MyList=newArrayList<>();// Adding objects to listMyList.add(newcoordinate(20,200));MyList.add(newco...
vals.sort(Comparator.reverseOrder()); System.out.println(vals); } The integers are sorted in ascending and descending orders. The data is sorted in-place; i.e. the original list is modified. $ java Main.java [-4, -2, -1, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8] ...
1,sort(cmp = None ,key = None, reverse = False),没有返回值,函数用于对原列表进行排序,如果指定参数,则使用比较函数指定的比较函数。会修改list本身,不会返回新list。 cmp:可选参数, 如果指定了该参数会使用该参数的方法进行排序。 key:可选参数,主要是用来进行比较的元素,只有一个参数,具体的函数的参数...
Write a Java program to sort the elements of the stack in descending order.Sample Solution:Java Code:import java.util.Scanner; public class Stack { private int[] arr; private int top; // Constructor to initialize the stack public Stack(int size) { arr = new int[size]; top = -1; }...
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() ...