What is Reflection?Reflection is a feature in Java that allows a program to obtain information about itself at runtime and dynamically manipulate the properties, methods, and constructors of classes or objects. With reflection, we can instantiate objects, call methods, and set properties without knowing the exact class name beforehand.The core of the reflection mechanism is the Class object, which represents a class. The Java Virtual Machine (JVM) automatically creates this Class object when it loads a class.How the JVM Creates a Class?When we write a class and compile it, the compiler convert...

PrefaceRecently, while using WebSocket (WS) connections, we encountered frequent disconnection issues, occurring hundreds of times per day for a single user. Although using the auto-reconnect feature of socket.io allowed us to quickly restore connections after disconnections, it did not guarantee that every reconnection would successfully receive WS messages. Therefore, we conducted several investigations and tests.Ultimately, we identified the root cause of the issue: the browser's power-saving mechanism, which inadvertently became the culprit behind the problem.Overview of Browser Power-Savi...

In the layout of AI computing architectures, the model of CPUs working in collaboration with accelerator chips has become a typical AI deployment solution. CPUs act as providers of basic computing power, while accelerator chips are responsible for enhancing computational performance, aiding in the efficient execution of algorithms. Common AI accelerator chips can be categorized into three main types based on their technological paths: GPU, FPGA, and ASIC.In this competition, GPUs have emerged as the mainstream AI chip due to their unique advantages. So, how did GPUs stand out among many option...

Today, let's talk about how to generate true random numbers. This is an extremely difficult problem, but it involves some very interesting content.First of all, the random numbers provided by programming languages are pseudo-random numbers. The V8 engine’s official website has an article that particularly reminds everyone of this point. The built-in random numbers are not true random numbers but pseudo-random numbers.Math.random() returns a Number value with positive sign, greater than or equal to 0 but less than 1, chosen randomly or pseudo-random...

Photo credit: FreepikEngaging an audience during a presentation is a challenge every speaker faces. The key to a successful presentation is not just delivering information but doing it in a way that captivates and keeps the audience interested throughout. Here are 12 creative and eye-popping ideas that will ensure your audience stays awake, attentive, and inspired.Start With a ShockBegin your presentation with a surprising fact, shocking image, or a provocative question. This creates immediate engagement and sets the tone for a dynamic session. Expert presentation design services can help craf...

Is there a most popular color among humans as a group?While the answer to this question depends on the definition of "most popular," there is an objective way to consider it: by looking at what color of cars sells the best.The color that has the highest sales in the car market indicates the public's strong preference for that color. Last week, a U.S. automotive website released the ranking of colors for all new cars sold in the U.S. in 2023.The result showed that shades of gray are the most popular, specifically various mixes of black and white, including four main colors: white, black, gray, ...

Understanding Open edXThe digital education sector has seen a rise in platforms that enhance global learning access. Open edX, in particular, has made a significant mark with its comprehensive and robust features. Companies like Raccoon Gang offer specialized open edX services to further enhance this platform's capabilities. This article delves into the essence of Open edX, highlighting its key components and global appeal.Open edX Core FeaturesCourse Authoring: User-friendly tools for course development and management.Adaptive Learning: Features that adapt to learner's unique needs.Analytics ...

Below lists some frequently asked GoLang interview questions and their corresponding answers based on the author's experience. The list is updated frequently with new understandings. Stay tuned.What is the GMP model of GoLang?GoLang uses goroutine to achieve concurrency and it is famous for high concurrency support as the language defines its own goroutine dispatching and processing system which is well known as GMP model.How it works is that M is normally defined as the OS thread being spawned( then each M thread should be associated with a Process queue and each Process queue can have multip...