Course 2857
Course Introduction:Course introduction: 1. Cross-domain processing, token management, route interception; 2. Real interface debugging, API layer encapsulation; 3. Secondary encapsulation of Echarts and paging components; 4. Vue packaging optimization and answers to common problems.
Course 1795
Course Introduction:Apipost is an API R&D collaboration platform that integrates API design, API debugging, API documentation, and automated testing. It supports grpc, http, websocket, socketio, and socketjs type interface debugging, and supports privatized deployment. Before formally learning ApiPost, you must understand some related concepts, development models, and professional terminology. Apipost official website: https://www.apipost.cn
Course 5521
Course Introduction:(Consult WeChat: phpcn01) The comprehensive practical course aims to consolidate the learning results of the first two stages, achieve flexible application of front-end and PHP core knowledge points, complete your own projects through practical training, and provide guidance on online implementation. Comprehensive practical key practical courses include: social e-commerce system backend development, product management, payment/order management, customer management, distribution/coupon system design, the entire WeChat/Alipay payment process, Alibaba Cloud/Pagoda operation and maintenance, and project online operation. .....
Course 5172
Course Introduction:(Consult WeChat: phpcn01) Starting from scratch, you can solve conventional business logic, operate MySQL with PHP to add, delete, modify, and query, display dynamic website data, master the MVC framework, master the basics of the ThinkPHP6 framework, and learn and flexibly master all knowledge involved in PHP development. point.
Course 8713
Course Introduction:(Consult WeChat: phpcn01) The learning objectives of the front-end development part of the 22nd issue of PHP Chinese website: 1. HTML5/CSS3; 2. JavaScript/ES6; 3. Node basics; 4. Vue3 basics and advanced; 5. Mobile mall/ Website background homepage layout; 6. Automatic calculation of tabs/carousels/shopping carts...
java - Can volatile solve the problem of thread-shared data security?
2017-06-23 09:14:04 0 2 708
多线程 - Java: Semaphore(1)和lock有啥区别,哪个性能更好?
Java: Semaphore(1)和lock有啥区别,哪个性能更好?
2017-04-18 10:53:39 0 1 318
java - AtomicInteger等原子类,是不是不用volatile修饰,自带volatile属性?
AtomicInteger等原子类,是不是不用volatile修饰,自带volatile属性?
2017-04-18 10:53:38 0 2 621
{代码...} 请教各位大牛 为什么这里的输出总是小于10000? 已经调用了thread.join
2017-04-18 10:52:11 0 3 509
java - lock与synchronize的解锁顺序问题?
2017-04-18 10:49:35 0 2 559
Course Introduction:This article brings you relevant knowledge about Java. It mainly organizes issues related to volatile, including volatile guarantees visibility, volatile does not guarantee atomicity, volatile prohibits instruction rearrangement, etc. Let’s take a look at it together. ,I hope everyone has to help.
2022-07-06 comment 0 1903
Course Introduction:The role of volatile in java: 1. Java provides the volatile keyword to ensure visibility; 2. To ensure orderliness, the code is [context = loadContext(); inited = true;]; 3. Provide double check.
2021-01-11 comment 0 25175
Course Introduction:The volatile keyword in Java is used to modify shared variables to ensure that their modifications are visible between different threads: Guaranteed visibility: All threads can immediately see modifications to volatile variables. Disable instruction reordering: This can prevent access to volatile variables from being reordered, ensuring a clear read and write order. Use in multi-threaded environments: The volatile keyword is mainly used in multi-threaded environments to ensure the visibility of shared variables and prevent threads from operating different copies. Usage scenarios: Usually used for shared variables that require synchronous access, such as counters and status flags. Note: volatile does not enforce atomicity, does not work with long and double types, and may
2024-05-01 comment 0 411
Course Introduction:Q: Please talk about your understanding of volatile? Answer: Volatile is a lightweight synchronization mechanism provided by the Java virtual machine. It has three characteristics: 1) Guaranteed visibility 2) Not guaranteed atomicity 3) Prohibiting instruction rearrangement. Just finished learning the basics of Java, if someone asks you something Is it volatile? If it has any function, I believe you must be very confused... Maybe after reading the answer, you don't understand at all, what is the synchronization mechanism? What is visibility? What is atomicity? What is instruction reordering? 1. Volatile ensures visibility 1.1. What is the JMM model? To understand what visibility is, you must first understand JMM. JMM (Java Memory Model, JavaMemoryModel) itself is
2023-05-28 comment 0 1011
Course Introduction:A brief analysis of the role and usage of the volatile keyword in Java In Java programming, volatile is a very important keyword. It can be used to modify variables to ensure multi-threaded visibility and disable instruction reordering. This article will introduce the role of volatile keyword in detail and give specific code examples. 1. The role of the volatile keyword ensures visibility: When multiple threads access a volatile-modified variable at the same time, each thread can get the latest value, which is guaranteed
2024-01-30 comment 793