
Introduced Strings in switch statement, Binary integer literals, allowing underscores in numeric literals, improved type inference for generic instance creation (or diamond operator ), Catching multiple exception types and rethrowing exceptions with improved type checking. Java SE 7 (JDK 7) (July 2011): First version after Oracle purchased Sun Microsystem - aslo called OracleJDK.Java SE 6 (JDK 6) (December 2006): Renamed J2SE to Java SE (Java Platform Standard Edition).Introduced generics, autoboxing/unboxing, annotation, enum, varargs, for-each loop, static import. J2SE 5.0 (JDK 5) (September 2004): Officially called 5.0 instead of 1.5 (by dropping the 1.).J2SE 1.4 (JDK 1.4) (February 2002): Introduced assert statement, non-blocking IO ( nio), logging API, image IO, Java webstart, regular expression (regex) support.Also introduced Collection Framework and JIT compiler. Included JFC (Java Foundation Classes - Swing, Accessibility API, Java 2D, Pluggable Look & Feel, and Drag & Drop). Also released J2EE (Java 2 Enterprise Edition) and J2ME (Java 2 Micro Edition). J2SE 1.2 (JDK 1.2) (December 1998): Re-branded as "Java 2" and renamed JDK to J2SE (Java 2 Standard Edition).JDK 1.1 (February 1997): Introduced AWT event model, inner class, JavaBean, JDBC, and RMI.



It does not include web-browser plugin and Web Start. OpenJDK includes the virtual machine (HotSpot), the Java Class Library, and the Java Compiler.

The Java Development Kit (JDK), officially named "Java Platform Standard Edition" or "Java SE", is needed for writing and running Java programs.
