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How many different ways do you create threads? Which one do you like? Why? There are three ways to create threads: Inherit Thread class Implement Runnable interface Applications can use the Executor framework to create thread pools Implementing the Runnable interface is more popular because it does not need to inherit the Thread class. ...

Experiment purpose and requirements Understand the file system composition and basic principle of the operating system, use these knowledge to simulate a FAT file system in memory, complete the file creation and indexing functions, and realize the following command interfaces:         (1) New file, format: ...

catalogue RedisTemplate switch Jedis implementation Switch the underlying Jedis API operation Redis RedisTemplate switch Jedis implementation 1. Spring Boot is Lettuce and Jedis The client library provides basic automatic configuration. By default, it is used Lettuce As a client, if you want to switch the Jedis client, there are two steps: ...

Experimental principle and content Critical area management based on mutual exclusion Using the editor gedit 2_1.c, create a new 2_1.c source file, create two threads to complete the ticket booking operation concurrently, and enter the following example code: #include <stdio.h> #include <pthread.h> #include <unistd.h> int ti ...

It is possible to create endless images with words. The Russian version of Dall-E pre training model starts (including automatic translation, Chinese can be entered) Look, look, this dalle is really wonderful. Write what you read and draw what you think. Don't miss your brain hole. "Avocado chair" "Beau ...

Chapter II overview of C language 1. Simple C program example cat first.c #include <stdio.h> int main(void) { int num; num = 1; printf("I am a simple "); printf("Computer. \n"); printf("My favorite number is %d besause it is first.\n",num); return 0; } Compilation execution: [root@hans ~]# gcc -o first fir ...

PHP   Send POST data $data = '{ "id": "17999030", "method": "sayHello", "jsonrpc": "2.0", "params": { "acmac": "00E0614CA7C6", "acconf_version": "2015-10-28-09-45" } }'; $url = "http://wifi.doucube.com/index.php/interface/device/ConfHeartbeat.html"; $res = http_request($url, $d ...

1, Title Description Description The preorder traversal and inorder traversal of a binary tree are given, and the number of leaf nodes of the corresponding binary tree is counted. This question requires the use of a binary linked list, otherwise even if it passes, points will be deducted as appropriate. Input Input two lines of string compo ...

1, What is Effect Hook?Hook is a special function starting with use, which allows the function component to have some features of the calss component. Effect Hook refers to the special function useEffect, which allows function components to perform custom operations after rendering. useState should be used with caution in useEffect, because it ...

In the process of selling tickets, there are thread safety problems, including duplicate tickets and wrong tickets. Why is this problem? When a thread has not completed the ticket selling operation during the operation of ticket selling, and other threads also participate in the operation of ticket selling, thread safety problems will occur ...