代码例子如下: packageahu;importjava.util.*;publicclassModify{publicstaticvoidmain(String[] args){Random rand=newRandom(47);Integer[] ia={0,1,2,3,4,5,6,7,8,9};List<Integer> list=newArrayList<Integer>(Arrays.asList(ia)
Collections.Shuffle Method Reference Feedback Definition Namespace: Java.Util Assembly: Mono.Android.dll Overloads Shuffle(IList<Object>, IRandomGenerator) Shuffle(IList<Object>, Random) Randomly permute the specified list using the specified source of randomness. ...
Collections.shuffle() 是 Java 中用于随机打乱集合元素顺序的方法。它可以对 List 集合中的元素进行随机排序,适用于需要随机化数据顺序的场景。 使用方法 public static void shuffle(List<?> list) 示例 import java.util.ArrayList;import java.util.Collections;import java.util.List;public class Main {public s...
Java洗牌算法Collections.shuffle packagecom.example.core.mydemo.javaDemo;importjava.util.ArrayList;importjava.util.Collections;/*** 随机打乱 洗牌算法用于随机打乱一个集合中元素的顺序。 * 打乱前:[1, 2, 3, 4, 5, 6, 7, 8, 9, 10] * 打乱后:[1, 9, 2, 10, 8, 3, 5, 6, 7, 4]...
Collections.shuffle方法功能: 用于对list中的元素进行随机排列 1. 2. 例: Collections.shuffle源码 public static void shuffle(List<?> list, Random rnd) { int size = list.size(); if (size < SHUFFLE_THRESHOLD || list instanceof RandomAccess) { ...
Java Collections.shuffle()方法案例详解 java.util.Collections类下有一个静态的shuffle()方法,如下: 1)static void shuffle(List> list) 使用默认随机源对列表进行置换,所有置换发生的可能性都是大致相等的。 2)static void shuffle(List> list, Random rand) 使用指定的随机源对指定列表进行置换,所有置换发生的可...
Collections.Shuffle Method Reference Feedback Definition Namespace: Java.Util Assembly: Mono.Android.dll Overloads Laienda tabel Shuffle(IList<Object>) Randomly permutes the specified list using a default source of randomness. Shuffle(IList<Object>, Random) Randomly permute the specified ...
shuffle()方法是一个静态方法可以直接通过Collections.shuffle(ArrayList list)调用,传入的参数是一个集合(你想打乱的集合) 例子: import java.util.ArrayList; public class shuffleExample { public static void main(String[] args) { ArrayList<String> saveCard =new ArrayList<>();//创建集合来存储斗地主的牌...
[Android.Runtime.Register("shuffle", "(Ljava/util/List;Ljava/util/Random;)V", "")] public static void Shuffle (System.Collections.Generic.IList list, Java.Util.Random rnd); Parameters list IList<Object> the list to be shuffled. rnd Random the source of randomness to use to shuffle th...
This method runs in linear time. If the specified list does not implement theRandomAccessinterface and is large, this implementation dumps the specified list into an array before shuffling it, and dumps the shuffled array back into the list. This avoids the quadratic behavior that would result ...