Java, or the Java Runtime Environment (JRE), is owned and maintained by Oracle. According to the Java website: Java technology allows you to work and play in a secure computing environment. Java ...

What is Java Runtime Environment and do I need it? The Java Runtime Environment (JRE) version 8 is what you get when you download Java software from the official Java website.

The JDK is the development platform for building Java applications. Learn about different JDK versions, then install a JDK in your development environment and use it to compile a Java program.