- Creating JSON documents from java classes using gson
- getContentResolver (Context)
- requestLocationUpdates (LocationManager)
- getSystemService (Context)
- ObjectMapper (com.fasterxml.jackson.databind)
ObjectMapper provides functionality for reading and writing JSON, either to and
from basic POJOs (Pl
- System (java.lang)
Provides access to system-related information and resources including standard
input and output. Ena
- TreeSet (java.util)
TreeSet is an implementation of SortedSet. All optional operations (adding and
removing) are support
- Executor (java.util.concurrent)
An object that executes submitted Runnable tasks. This interface provides a way
of decoupling task s
- Collectors (java.util.stream)
- GridBagLayout (java.awt)
The GridBagLayout class is a flexible layout manager that aligns components
vertically and horizonta
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