- Making http requests using okhttp
- getSupportFragmentManager (FragmentActivity)
- onCreateOptionsMenu (Activity)
- notifyDataSetChanged (ArrayAdapter)
- File (java.io)
An "abstract" representation of a file system entity identified by a pathname.
The pathname may be a
- URLEncoder (java.net)
This class is used to encode a string using the format required by
application/x-www-form-urlencoded
- Permission (java.security)
Legacy security code; do not use.
- Calendar (java.util)
Calendar is an abstract base class for converting between a Date object and a
set of integer fields
- Collectors (java.util.stream)
- StringUtils (org.apache.commons.lang)
Operations on java.lang.String that arenull safe.
* IsEmpty/IsBlank - checks if a String contains
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