- Running tasks concurrently on multiple threads
- findViewById (Activity)
- getSupportFragmentManager (FragmentActivity)
- setRequestProperty (URLConnection)
- FileWriter (java.io)
A specialized Writer that writes to a file in the file system. All write
requests made by calling me
- InputStream (java.io)
A readable source of bytes.Most clients will use input streams that read data
from the file system (
- HashMap (java.util)
HashMap is an implementation of Map. All optional operations are supported.All
elements are permitte
- LinkedList (java.util)
Doubly-linked list implementation of the List and Dequeinterfaces. Implements
all optional list oper
- Cipher (javax.crypto)
This class provides access to implementations of cryptographic ciphers for
encryption and decryption
- ServletException (javax.servlet)
Defines a general exception a servlet can throw when it encounters difficulty.
- CodeWhisperer alternatives