Click the little blue text to follow! Hello everyone, today I will take you to play with something interesting—using Java to get weather forecasts! Don’t worry, this is not some profound technology; it’s just sending a network request to fetch some data. Remember those weather apps quietly sitting on your phone? The core principle behind … Read more
Author: Trisha Gee Translator: Zhang Weibin Key Points Since Java 8, many useful new language features, tools, and performance improvements (especially related to garbage collection optimizations) have been introduced. When choosing to upgrade, we face the decision of whether to upgrade to the latest Java (12) and prepare for upgrades every six months, or to … Read more
Click the blue text to follow! Heard your image processing code is running slow? Ha, don’t worry! Once upon a time, my code crawled like a snail. Today, let me introduce you to the “black technology” in Java—SIMD vectorization, which will make your image filtering performance soar! What is SIMD? Single Instruction, Multiple Data. In … Read more
In Java development, data security is of utmost importance, and the Java Cryptography Architecture acts as a reliable “security guard,” providing various encryption algorithms to ensure data safety. Below, I will guide you through how it meets the needs for data encryption and security authentication. 1. What is the Java Cryptography Architecture? Let’s first discuss … Read more
Creating a Desktop File Encryption Tool with Java Hello, friends! I also started as a beginner in Python, and today we will create a super practical desktop file encryption tool using Java. In our daily work and life, file privacy and security are becoming increasingly important. With this tool, we can use high-strength encryption algorithms … Read more
Comprehensive Analysis of Java SHA-256 Algorithm 1. Theoretical Background 1.1 Basics of Hash Functions The hash function is a core component of cryptography, with the following key properties: Determinism: The same input will always produce the same output Efficiency: Quickly computes the hash value for inputs of any length Pre-image Resistance: It is infeasible to … Read more
Click the blue text to follow us Java Edge AI Inference: Deploying TensorFlow Lite on Raspberry Pi To be honest, when I first encountered edge AI, I completely went in the wrong direction. I thought that simply shrinking the model would allow it to run, but I ended up hitting a lot of pitfalls. At … Read more
Click the blue text to follow! Dear programmer friends, it’s time to meet with Feng again! Have you ever encountered a situation where you clicked “sleep mode” on your smart home app, and the curtains closed, but the lights remained on, and the air conditioning turned off? It’s like planning a candlelight dinner, and the … Read more
Core Idea of SPI Mechanism SPI (Service Provider Interface) is a service discovery mechanism that allows frameworks or libraries to dynamically load implementation classes of interfaces at runtime, achieving module decoupling and pluggable extensions. The core process is as follows: Define the interface (Service Provider Interface). Write multiple implementation classes for the interface. Register the … Read more
1. Importing the HttpClient Dependency First, confirm whether the HttpClient dependency has been included in the project. If it has not been included, add the following code to the pom.xml to import the HttpClient dependency: <dependency> <groupId>org.apache.httpcomponents</groupId> <artifactId>httpclient</artifactId> <version>4.5.13</version> </dependency> 2. Sending GET Requests 2.1 Sending GET Requests (No Parameters) import org.apache.http.HttpStatus; import org.apache.http.client.methods.CloseableHttpResponse; import … Read more