- Start an intent from android
- getSupportFragmentManager (FragmentActivity)
- getSystemService (Context)
- getExternalFilesDir (Context)
- FileInputStream (java.io)
An input stream that reads bytes from a file.
File file = ...finally
if (in != null)
in.clos
- SecureRandom (java.security)
This class generates cryptographically secure pseudo-random numbers. It is best
to invoke SecureRand
- Arrays (java.util)
This class contains various methods for manipulating arrays (such as sorting and
searching). This cl
- Calendar (java.util)
Calendar is an abstract base class for converting between a Date object and a
set of integer fields
- Collections (java.util)
This class consists exclusively of static methods that operate on or return
collections. It contains
- Dictionary (java.util)
Note: Do not use this class since it is obsolete. Please use the Map interface
for new implementatio
- Github Copilot alternatives