I just downloaded Eclipse (because I'm going to mess with Android development), but when trying to open it appears the message below.
The JRE is installed on my machine because I can use NetBeans normally, without problems.
Detail is that when you type "java -version" in cmd, it says that the "java" command does not exist.
The Java Runtime Environment (JRE) or Java Development Kit (JDK) must be available in order to run Eclipse. No Java virtual machine was found after searching the following locations: D: \ Downloads \ eclipse-java-kepler-SR2-win32-x86_64 \ eclipse \ jre \ bin \ javaw.exe javaw.exe in your current PATH