- Running tasks concurrently on multiple threads
- getSharedPreferences (Context)
- getExternalFilesDir (Context)
- setContentView (Activity)
- File (java.io)
An "abstract" representation of a file system entity identified by a pathname.
The pathname may be a
- URI (java.net)
A Uniform Resource Identifier that identifies an abstract or physical resource,
as specified by RFC
- Collections (java.util)
This class consists exclusively of static methods that operate on or return
collections. It contains
- TimeZone (java.util)
TimeZone represents a time zone offset, and also figures out daylight savings.
Typically, you get a
- Semaphore (java.util.concurrent)
A counting semaphore. Conceptually, a semaphore maintains a set of permits. Each
#acquire blocks if
- Cipher (javax.crypto)
This class provides access to implementations of cryptographic ciphers for
encryption and decryption
- Top 12 Jupyter Notebook extensions