- Running tasks concurrently on multiple threads
- notifyDataSetChanged (ArrayAdapter)
- findViewById (Activity)
- onRequestPermissionsResult (Fragment)
- System (java.lang)
Provides access to system-related information and resources including standard
input and output. Ena
- URLConnection (java.net)
A connection to a URL for reading or writing. For HTTP connections, see
HttpURLConnection for docume
- KeyStore (java.security)
KeyStore is responsible for maintaining cryptographic keys and their owners.
The type of the syste
- Locale (java.util)
Locale represents a language/country/variant combination. Locales are used to
alter the presentatio
- Callable (java.util.concurrent)
A task that returns a result and may throw an exception. Implementors define a
single method with no
- VirtualMachine (com.sun.tools.attach)
A Java virtual machine.
A VirtualMachine represents a Java virtual machine to which this Java vir
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