- Making http requests using okhttp
- getContentResolver (Context)
- notifyDataSetChanged (ArrayAdapter)
- getApplicationContext (Context)
- InputStreamReader (java.io)
A class for turning a byte stream into a character stream. Data read from the
source input stream is
- OutputStream (java.io)
A writable sink for bytes.Most clients will use output streams that write data
to the file system (
- ServerSocket (java.net)
This class represents a server-side socket that waits for incoming client
connections. A ServerSocke
- URL (java.net)
A Uniform Resource Locator that identifies the location of an Internet resource
as specified by RFC
- TimerTask (java.util)
The TimerTask class represents a task to run at a specified time. The task may
be run once or repeat
- 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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