About how to find JDK when installing SDK for Android

I want to install an android development environment over the past few days.ProgramRunning in a cell phone, configuring an environment, tangle, the SDK cannot find the JDK, which is not identified. I remember that this problem did not occur during the sophomore fashion. Did Android experience a degradation after two years of development. I thought it was wrong to install JDK because JDK was installed on my computer and has been used for Java Web development, the registry or something has been cleared up. After the reinstallation failed, I searched the internet. I couldn't hold it anymore !!!!

The original text is as follows:

"Now Android is so popular, as a technician, I want to know about it, just from idea ......"

Address: http://blog.csdn.net/ljfzz/article/details/6623644

this is the case. It is really a pain point. What's more about Google? Walking away ......