- Making http post requests using okhttp
- onCreateOptionsMenu (Activity)
- startActivity (Activity)
- scheduleAtFixedRate (ScheduledExecutorService)
- ObjectMapper (com.fasterxml.jackson.databind)
ObjectMapper provides functionality for reading and writing JSON, either to and
from basic POJOs (Pl
- Thread (java.lang)
A thread is a thread of execution in a program. The Java Virtual Machine allows
an application to ha
- 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Note: Do not use this class since it is obsolete.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
- HashMap (java.util)
HashMap is an implementation of Map. All optional operations are supported.All
elements are permitte
- Set (java.util)
A Set is a data structure which does not allow duplicate elements.
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