10 recommended articles about shuffling the order

The following example demonstrates how to use the Collections class Collections.shuffle() method to shuffle the order of collection elements: /* author by w3cschool.cc Main.java */import java.util.*;public class Main { Public static void main(String[] args) { List list = new ArrayList

1. Java Example - Collection shuffled order

Introduction: The following example demonstrates how to use the Collections class Collections.shuffle() method to shuffle the order of collection elements:

##2. [Regular Expression] Detection string only contains numbers, letters, underscores, Chinese characters, how to solve the problem

Introduction: [Regular Expression] Detection string only contains Numbers, letters, underscores, and Chinese characters. RT needs to verify that the username only contains numbers, letters, underscores, and Chinese characters. It is required that it can be detected even if the order is messed up ------Solution--------- ----------'/^[x7f-xffA-Za-z0-9_]+$/'------Solution------------- -------$s = '%';var_

3. Share three questions from today’s interview

Introduction: Let’s share the three questions from today’s interview without mentioning the name of the company. 1. Simulate poker dealing. There are 52 playing cards. We number them from 1,2,3...52. There are 52 cards in total. Please use an array to load these cards, and then output them in shuffled order. For example: 43,2,18,21...3. Second, the company needs to cooperate with QQ, provide interfaces to QQ, and send QQ numbers. Please help detect the rules of QQ Haoma. For example, 4323254, the rule is: ABAB. 5723723, the rules are ABCABC. 3. False

4. How to elegantly shuffle a string in php and then input it (without using an array)?

Introduction: The string returned in the background needs to be scrambled in the order of the characters in the string and then output. I thought of cutting the string into an array, and then using the shuffle() shuffles the array, and finally splices the array into a string and outputs it. However, this seems too inefficient. How to elegantly implement this requirement?

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#How to elegantly shuffle a string in php and then input it (without using an array)?

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