- Making http post requests using okhttp
- getSystemService (Context)
- notifyDataSetChanged (ArrayAdapter)
- onCreateOptionsMenu (Activity)
- FileOutputStream (java.io)
An output stream that writes bytes to a file. If the output file exists, it can
be replaced or appen
- Socket (java.net)
Provides a client-side TCP socket.
- Scanner (java.util)
A parser that parses a text string of primitive types and strings with the help
of regular expressio
- Collectors (java.util.stream)
- StringUtils (org.apache.commons.lang)
Operations on java.lang.String that arenull safe.
* IsEmpty/IsBlank - checks if a String contains
- Font (java.awt)
The Font class represents fonts, which are used to render text in a visible way.
A font provides the
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