- Reading from database using SQL prepared statement
- getExternalFilesDir (Context)
- putExtra (Intent)
- scheduleAtFixedRate (ScheduledExecutorService)
- FileWriter (java.io)
A specialized Writer that writes to a file in the file system. All write
requests made by calling me
- Arrays (java.util)
This class contains various methods for manipulating arrays (such as sorting and
searching). This cl
- Deque (java.util)
A linear collection that supports element insertion and removal at both ends.
The name deque is shor
- Servlet (javax.servlet)
Defines methods that all servlets must implement. A servlet is a small Java
program that runs within
- DataSource (javax.sql)
An interface for the creation of Connection objects which represent a connection
to a database. This
- Logger (org.apache.log4j)
This is the central class in the log4j package. Most logging operations, except
configuration, are d
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