Introduction ​

This is a beginner's Java tutorial.

Why learn Java? ​

Because Java is the world's No. 1 programming language, Java engineers are also the most in-demand software engineers.

Why is Java the most widely used? ​

From the Internet to enterprise platforms, Java is the most widely used programming language because:

• Java is a cross-platform language based on the JVM virtual machine, written once, run everywhere
• Java programs are easy to write, and there is built-in garbage collection, so you don't have to worry about memory management
• The Java Virtual Machine has industrial-grade stability and highly optimized performance, and has been tested for a long time
• Java has the broadest open source community support, and a wide range of high-quality components are readily available

The Java language dominates three major markets for many years:

• Internet and enterprise applications, which are the long-term strengths and market positions of Java EE
• Big data platforms, mainly Hadoop, Spark, Flink, etc., are developed by Java or Scala (a programming language that runs on the JVM)
• Android mobile platform

This means that Java has the widest range of job markets.

Tutorial features ​

Although it is a zero-based Java tutorial, it covers the core programming of Java from basic to advanced, and after learning, you can grow from a beginner to an architect and achieve hard power and high-paying employment!

And stay up to date with the latest version of Java! The current tutorial version is:

Java 23!

Don't hesitate! Start learning Java now, from beginner to architect!