- Updating database using SQL prepared statement
- compareTo (BigDecimal)
- putExtra (Intent)
- scheduleAtFixedRate (Timer)
- FileOutputStream (java.io)
An output stream that writes bytes to a file. If the output file exists, it can
be replaced or appen
- FileWriter (java.io)
A specialized Writer that writes to a file in the file system. All write
requests made by calling me
- SecureRandom (java.security)
This class generates cryptographically secure pseudo-random numbers. It is best
to invoke SecureRand
- Servlet (javax.servlet)
Defines methods that all servlets must implement. A servlet is a small Java
program that runs within
- Font (java.awt)
The Font class represents fonts, which are used to render text in a visible way.
A font provides the
- BufferedImage (java.awt.image)
The BufferedImage subclass describes an java.awt.Image with an accessible buffer
of image data. All
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