
It\'s showing -
This installer must be executed using a Java Development Kit (JDK)
The JRE is the Java Runtime Environment - what is needed just to run "regular" Java software. It's part of the JDK, but not the complete package. The JDK includes the JRE plus developer tools e.g. the Java Compiler. Weblogic's installer apparently needs the full JDK, not only the JRE.
If you installed the JDK, you should be able to find it on your hard drive (e.g. C:\Program Files\Java\jdk1.7_). The path in your screenshot is only the "raw" JRE.