On Tue, 29 Nov 2016, Wolfgang Engelmann wrote:
Usually, when you only care about running Java programs on your browser or computer you will only install *JRE*. It's all you need. On the other hand, if you are planning to do some Java programming, you will also need *JDK*.
Wolfgang, There may be tools and applications you use that need to be locally built so installing the JDK prevents a build failing because part of it is in Java and you can't compile that portion. A rare event, but the JDK covers you. Rich