After the installation of the Java JDK, why do I need to install the JRE

Question

The JDK contains the JRE, but even after installing the JDK and setting JAVA_HOME, whenever I test Java using webstart or the Java test page, it says that Java is not installed. Do I need to install the JRE?

Answer 1

In order for java to work in a browser, you need the java browser plugin, which does not come with the JDK.