Where is the Android JDK folder?

Download and install latest JDK(currently its 8) from java official site in case you are using previous versions. Then in Android Studio go to File->Project Structure->SDK location -> JDK location and set it to ‘C:\Program Files\Java\jdk1. 8.0_121’ (Default location of JDK).

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Can I install JDK after Android Studio?

The next piece of software for you to install is called Android Studio. This is an official text editor and integrated development environment (IDE) for developing Android apps. You must install Oracle JDK before installing Android Studio , so please don’t start this step until you have completed Step 1 above.

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