- Creating JSON documents from java classes using gson
- getApplicationContext (Context)
- startActivity (Activity)
- scheduleAtFixedRate (Timer)
- KeyStore (java.security)
KeyStore is responsible for maintaining cryptographic keys and their owners.
The type of the syste
- Collection (java.util)
Collection is the root of the collection hierarchy. It defines operations on
data collections and t
- Locale (java.util)
Locale represents a language/country/variant combination. Locales are used to
alter the presentatio
- Map (java.util)
A Map is a data structure consisting of a set of keys and values in which each
key is mapped to a si
- Executor (java.util.concurrent)
An object that executes submitted Runnable tasks. This interface provides a way
of decoupling task s
- 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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