I decided to update my JDK to Java 8, and installed to the default location of C:\\Program Files\\Java\\jdk1.8.0 with a jre subdirectory.
C:\\Program Files\\Java\\jdk1.8.0
jre
I
The problem was my project's JDK location. From the Android Studio Project tool window, I right clicked on the root directory, selected 'module settings', and set the JDK location. Everything's fine now.