- Updating database using SQL prepared statement
- scheduleAtFixedRate (ScheduledExecutorService)
- startActivity (Activity)
- scheduleAtFixedRate (Timer)
- URLEncoder (java.net)
This class is used to encode a string using the format required by
application/x-www-form-urlencoded
- MessageDigest (java.security)
Uses a one-way hash function to turn an arbitrary number of bytes into a
fixed-length byte sequence.
- HashSet (java.util)
HashSet is an implementation of a Set. All optional operations (adding and
removing) are supported.
- Map (java.util)
A Map is a data structure consisting of a set of keys and values in which each
key is mapped to a si
- TimerTask (java.util)
The TimerTask class represents a task to run at a specified time. The task may
be run once or repeat
- Graphics2D (java.awt)
This Graphics2D class extends the Graphics class to provide more sophisticated
control overgraphics
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