Java is quite platform-independent and mostly upwards compatible, so it is common to compile a piece of code using a given J2SE version and expect it to work in later JVM versions.

For example, the latest version of Java 6 is "Java SE Runtime Environment 6u43." Click the circle next to "Accept License Agreement," and then click the link next to the Java download file that ...

Business practices are behind the Java LTS release schedule. Many companies still use Java 11, Java 8 and even Java 6 or 7.