The Java 101 series provides a self-guided introduction to Java programming, starting with the basics and covering all the core concepts you need to know to become a productive Java developer.

To celebrate Java’s 25th anniversary this year and the latest release of Java 15, JetBrains has compiled data from multiple sources to look at what the current state of the language is.

This story, “JetBrains ships IntelliJ Idea Java IDE upgrade,” was originally published at InfoWorld.com. Follow the latest developments in application development at InfoWorld.com.