- Running tasks concurrently on multiple threads
- getSharedPreferences (Context)
- scheduleAtFixedRate (Timer)
- runOnUiThread (Activity)
- BufferedWriter (java.io)
Wraps an existing Writer and buffers the output. Expensive interaction with the
underlying reader is
- Arrays (java.util)
This class contains various methods for manipulating arrays (such as sorting and
searching). This cl
- Semaphore (java.util.concurrent)
A counting semaphore. Conceptually, a semaphore maintains a set of permits. Each
#acquire blocks if
- Handler (java.util.logging)
A Handler object accepts a logging request and exports the desired messages to a
target, for example
- 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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