- Reading from database using SQL prepared statement
- getApplicationContext (Context)
- getSystemService (Context)
- getResourceAsStream (ClassLoader)
- File (java.io)
An "abstract" representation of a file system entity identified by a pathname.
The pathname may be a
- FileOutputStream (java.io)
An output stream that writes bytes to a file. If the output file exists, it can
be replaced or appen
- Selector (java.nio.channels)
A controller for the selection of SelectableChannel objects. Selectable channels
can be registered w
- MessageFormat (java.text)
Produces concatenated messages in language-neutral way. New code should probably
use java.util.Forma
- Pattern (java.util.regex)
Patterns are compiled regular expressions. In many cases, convenience methods
such as String#matches
- Logger (org.apache.log4j)
This is the central class in the log4j package. Most logging operations, except
configuration, are d
- From CI to AI: The AI layer in your organization