- Running tasks concurrently on multiple threads
- notifyDataSetChanged (ArrayAdapter)
- getSharedPreferences (Context)
- getApplicationContext (Context)
- InputStreamReader (java.io)
A class for turning a byte stream into a character stream. Data read from the
source input stream is
- Scanner (java.util)
A parser that parses a text string of primitive types and strings with the help
of regular expressio
- Collectors (java.util.stream)
- Cipher (javax.crypto)
This class provides access to implementations of cryptographic ciphers for
encryption and decryption
- Servlet (javax.servlet)
Defines methods that all servlets must implement. A servlet is a small Java
program that runs within
- StringUtils (org.apache.commons.lang)
Operations on java.lang.String that arenull safe.
* IsEmpty/IsBlank - checks if a String contains
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