Course Elementary  13353

Course Introduction：Scala Tutorial Scala is a multi-paradigm programming language, designed to integrate various features of object-oriented programming and functional programming.

Course Elementary  81800

Course Introduction："CSS Online Manual" is the official CSS online reference manual. This CSS online development manual contains various CSS properties, definitions, usage methods, example operations, etc. It is an indispensable online query manual for WEB programming learners and developers! CSS: Cascading Style Sheets (English full name: Cascading Style Sheets) is an application used to express HTML (Standard Universal Markup Language).

Course Elementary  12815

Course Introduction：SVG is a markup language for vector graphics in HTML5. It maintains powerful drawing capabilities and at the same time has a very high-end interface to operate graphics by directly operating Dom nodes. This "SVG Tutorial" is intended to allow students to master the SVG language and some of its corresponding APIs, combined with the knowledge of 2D drawing, so that students can render and control complex graphics on the page.

Course Elementary  24266

Course Introduction：In the "AngularJS Chinese Reference Manual", AngularJS extends HTML with new attributes and expressions. AngularJS can build a single page application (SPAs: Single Page Applications). AngularJS is very easy to learn.

Course Elementary  27054

Course Introduction：Go is a new language, a concurrent, garbage-collected, fast-compiled language. It can compile a large Go program in a few seconds on a single computer. Go provides a model for software construction that makes dependency analysis easier and avoids most C-style include files and library headers. Go is a statically typed language, and its type system has no hierarchy. Therefore users do not need to spend time defining relationships between types, which feels more lightweight than typical object-oriented languages. Go is a completely garbage-collected language and provides basic support for concurrent execution and communication. By its design, Go is intended to provide a method for constructing system software on multi-core machines.

Course Introduction：Building an HBase cluster under CentOS requires the following steps: 1. Environment preparation to install Java: HBase requires a Java environment, usually JDK8 or higher. You can use the following command to check whether Java is already installed: java-version If Java is not installed in the system, you can use the following command to install: sudoyumininstalljava-1.8.0-openjdk Install Hadoop: HBase depends on Hadoop

2025-04-14 comment 0  161

Course Introduction：Configuring WebLogic database connection on a CentOS system requires the following steps: JDK installation and environment configuration: Make sure that the server has installed a JDK that is compatible with the WebLogic version (for example, WebLogic14.1.1 usually requires JDK8). Correctly set JAVA_HOME, CLASSPATH and PATH environment variables. WebLogic installation and decompression: Download the WebLogic installation package for CentOS system from the official Oracle website and unzip it to the specified directory. WebLogic user and directory creation: Create a dedicated WebLogic user account and set a security password

2025-04-14 comment 0  416

Course Introduction：SqlParameter Parameters.Add vs. AddWithValue: Choosing the Best MethodWhen working with SQL commands, you may encounter the need to add...

2025-01-10 comment 0  474

Course Introduction：In Dave The Diver, there are some creatures that are not easy to catch. Or, catch alive that is. The spider crab is one of those very species, making it seem like the only way to bring these crustaceans back up to land is to viciously crack them up w

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Course Introduction：Conditional Column CountingConsider a table named "Jobs" structured as follows:jobId, jobName, Prioritywhere "Priority" is an integer between 1...

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