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- getSystemService (Context)
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ObjectMapper provides functionality for reading and writing JSON, either to and
from basic POJOs (Pl
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A linear collection that supports element insertion and removal at both ends.
The name deque is shor
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A Map is a data structure consisting of a set of keys and values in which each
key is mapped to a si
- PriorityQueue (java.util)
A PriorityQueue holds elements on a priority heap, which orders the elements
according to their natu
- AtomicInteger (java.util.concurrent.atomic)
An int value that may be updated atomically. See the java.util.concurrent.atomic
package specificati
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General file manipulation utilities. Facilities are provided in the following
areas: * writing to a
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