The Free On-line Dictionary of Computing (30 December 2018):

Java Development Kit
JDK

    (JDK) A free Sun Microsystems product
   which provides the environment required for programming in
   Java.  The JDK is available for a variety of platforms,
   but most notably Sun Solaris and Microsoft Windows.

   (http://java.sun.com/products/jdk/1.1/index.html).

   [Version?]

   (1997-09-04)