$ keytool -genkey -v -keystore debug.keystore -storepass android -alias androiddebugkey -keypass android -keyalg RSA -keysize 2048 -validity 10000 -dname "C=US, O=Android, CN=Android Debug"System directories
| Method | Result |
|---|---|
| Environment.getDataDirectory() | /data |
| Environment.getDownloadCacheDirectory() | /cache |
| Environment.getRootDirectory() | /system |
External storage directories