Programming Tips - How can I find the second sdcard?

Date: 2017feb21 OS: Android Q. How can I find the second sdcard? A. One of these should work
String path1 = System.getenv("SECONDARY_STORAGE"); String path2 = System.getenv("EXTERNAL_SDCARD_STORAGE");
By the way, how to get the *first* sdcard:
Environment.getExternalStorageDir()
Alternate approaches:
Looked at everything call *card* below /mnt
Look for /sdcard and /extscard