- Running tasks concurrently on multiple threads
- setRequestProperty (URLConnection)
- findViewById (Activity)
- setScale (BigDecimal)
- Format (java.text)
The base class for all formats. This is an abstract base class which specifies
the protocol for clas
- Random (java.util)
This class provides methods that return pseudo-random values.It is dangerous to
seed Random with the
- UUID (java.util)
UUID is an immutable representation of a 128-bit universally unique identifier
(UUID). There are mul
- ConcurrentHashMap (java.util.concurrent)
A plug-in replacement for JDK1.5 java.util.concurrent.ConcurrentHashMap. This
version is based on or
- Semaphore (java.util.concurrent)
A counting semaphore. Conceptually, a semaphore maintains a set of permits. Each
#acquire blocks if
- Pattern (java.util.regex)
Patterns are compiled regular expressions. In many cases, convenience methods
such as String#matches
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