- Making http post requests using okhttp
- getSystemService (Context)
- getApplicationContext (Context)
- startActivity (Activity)
- Charset (java.nio.charset)
A charset is a named mapping between Unicode characters and byte sequences.
Every Charset can decode
- Collections (java.util)
This class consists exclusively of static methods that operate on or return
collections. It contains
- Callable (java.util.concurrent)
A task that returns a result and may throw an exception. Implementors define a
single method with no
- HttpServlet (javax.servlet.http)
Provides an abstract class to be subclassed to create an HTTP servlet suitable
for a Web site. A sub
- Color (java.awt)
The Color class is used to encapsulate colors in the default sRGB color space or
colors in arbitrary
- BufferedImage (java.awt.image)
The BufferedImage subclass describes an java.awt.Image with an accessible buffer
of image data. All
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