- Making http requests using okhttp
- notifyDataSetChanged (ArrayAdapter)
- addToBackStack (FragmentTransaction)
- runOnUiThread (Activity)
- Socket (java.net)
Provides a client-side TCP socket.
- ArrayList (java.util)
ArrayList is an implementation of List, backed by an array. All optional
operations including adding
- LinkedHashMap (java.util)
LinkedHashMap is an implementation of Map that guarantees iteration order. All
optional operations a
- CountDownLatch (java.util.concurrent)
A synchronization aid that allows one or more threads to wait until a set of
operations being perfor
- Pattern (java.util.regex)
Patterns are compiled regular expressions. In many cases, convenience methods
such as String#matches
- IOUtils (org.apache.commons.io)
General IO stream manipulation utilities. This class provides static utility
methods for input/outpu
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