- Running tasks concurrently on multiple threads
- onRequestPermissionsResult (Fragment)
- notifyDataSetChanged (ArrayAdapter)
- startActivity (Activity)
- System (java.lang)
Provides access to system-related information and resources including standard
input and output. Ena
- Collection (java.util)
Collection is the root of the collection hierarchy. It defines operations on
data collections and t
- LinkedHashMap (java.util)
LinkedHashMap is an implementation of Map that guarantees iteration order. All
optional operations a
- Random (java.util)
This class provides methods that return pseudo-random values.It is dangerous to
seed Random with the
- Logger (org.apache.log4j)
This is the central class in the log4j package. Most logging operations, except
configuration, are d
- Filter (javax.servlet)
A filter is an object that performs filtering tasks on either the request to a
resource (a servlet o
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