- Creating JSON documents from java classes using gson
- runOnUiThread (Activity)
- getApplicationContext (Context)
- getContentResolver (Context)
- SecureRandom (java.security)
This class generates cryptographically secure pseudo-random numbers. It is best
to invoke SecureRand
- ArrayList (java.util)
ArrayList is an implementation of List, backed by an array. All optional
operations including adding
- Properties (java.util)
A Properties object is a Hashtable where the keys and values must be Strings.
Each property can have
- UUID (java.util)
UUID is an immutable representation of a 128-bit universally unique identifier
(UUID). There are mul
- Callable (java.util.concurrent)
A task that returns a result and may throw an exception. Implementors define a
single method with no
- ZipFile (java.util.zip)
This class provides random read access to a zip file. You pay more to read the
zip file's central di
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