Android studio doesn't start - Fix

If you have recently downloaded The new Android Studio you may have noticed that even after installing it correctly, Android Studio just won't start up. To fix this issue,assuming you have java on your machine, follow these steps.

1.Go to control Panel.
2.Click on System and security.
3.System.
4,Click on Advanced system settings.
5.You will see a window which has an option of Environment variables.
4.Click on that and create a new variable saying JAVA_HOME with the value that points to your JDK folder, for example C:\Program Files\Java\jdk1.7.0_21.
5.Ok and now try stating android studio again.

How to make 4 control fields from 4 portals.

This it the most efficient way to link if you come across 4 portals in Ingress. Usually one makes just 2 control fields with 4 neighboring portals or more advanced agents make 3. This new trick will help you make 4 control fields.