importjava.util.*;publicclassListSorting2 {publicstaticvoidmain(String args[]) { Scanner scanner=newScanner(System.in) ;intnums =scanner.nextInt() ;intchoose =scanner.nextInt() ; scanner.nextLine() ; List<Adam> list =newArrayList<>() ;for(inti = 0 ; i < nums ; i ++) { String s=...
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...
编程算法java 一.qsort()函数功 能: 使用快速排序例程进行排序头文件:stdlib.h 用法: void qsort(void *base,int nelem,int width,int (*fcmp)(const void *,const void *)); 参数: 1 待排序数组首地址 2 数组中待排序元素数量 3 各元素的占用空间大小 4 指向函数的指针,用于确定排序的顺序 qsort(即...
import java.util.Comparator; import java.util.Scanner; class Student { String name; int score; public Student(String name, int score) { = name; this.score = score; } } public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int n = sc.n...
method is an upgraded version of the java.util.Arrays.sort() method class, which is capable to sort the elements from a linked list as well as queue and many more. In one word, the collection class are capable to sort the elements from a list in an effective manner. Let's take an ...
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;importjava.util.List...
sss; import java.util.Arrays; /** * @author Shusheng Shi */ public class MergeSort { public static void mergeSort(int[] arr) { if (arr == null || arr.length < 2) { return; } mergeSort(arr, 0, arr.length - 1); } public static void mergeSort(int[] arr, int l, int r)...
Java version:1.8+ More Examples Example Use a lambda expression to sort a list in reverse alphabetical order: importjava.util.ArrayList;publicclassMain{publicstaticvoidmain(String[]args){ArrayList<String>cars=newArrayList<String>();cars.add("Volvo");cars.add("BMW");cars.add("Ford");cars.add...
importjava.util.Arrays;importjava.util.Comparator;importjava.util.Scanner;//定义类aclassa{intn; }//定义类cmp,制定排序规则classcmpimplementsComparator{publicintcompare(a A, a B){if(A.n > B.n)return-1;if(A.n == B.n)return0;if(A.n < B.n)return1;return0; ...
排序前:User{age=12, name='王五'}User{age=22, name='赵六'}User{age=15, name='杂七'}Exception in thread "main" java.lang.ClassCastException: ComparableInterface.User cannot be cast to java.lang.Comparable at java.util.ComparableTimSort.countRunAndMakeAscending(ComparableTimSort.java:320)...