- Making http requests using okhttp
- getSystemService (Context)
- startActivity (Activity)
- setRequestProperty (URLConnection)
- MessageDigest (java.security)
Uses a one-way hash function to turn an arbitrary number of bytes into a
fixed-length byte sequence.
- Collections (java.util)
This class consists exclusively of static methods that operate on or return
collections. It contains
- Dictionary (java.util)
Note: Do not use this class since it is obsolete. Please use the Map interface
for new implementatio
- Callable (java.util.concurrent)
A task that returns a result and may throw an exception. Implementors define a
single method with no
- IOUtils (org.apache.commons.io)
General IO stream manipulation utilities. This class provides static utility
methods for input/outpu
- Color (java.awt)
The Color class is used to encapsulate colors in the default sRGB color space or
colors in arbitrary
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