This App is divided into two sections:
Java SE
The Java Platform, Standard Edition (Java SE) APIs define the core Java platform for general-purpose computing. These APIs are in modules whose names start with java.
JDK
The Java Development Kit (JDK) APIs are specific to the JDK and will not necessarily be available in all implementations of the Java SE Platform. These APIs are in modules whose names start with jdk.
Thi is the latest release of Java SE 16 Platform. This release contains improvements like Local-Variable Type Inference, Parallel Full GC, Application Class-Data Sharing. Oracle strongly recommends that all Java SE users upgrade to this release.
Also it include java interview question and java testing.