- Running tasks concurrently on multiple threads
- runOnUiThread (Activity)
- addToBackStack (FragmentTransaction)
- orElseThrow (Optional)
Return the contained value, if present, otherwise throw an exception to be
created by the provided s
- FileWriter (java.io)
A specialized Writer that writes to a file in the file system. All write
requests made by calling me
- Thread (java.lang)
A thread is a thread of execution in a program. The Java Virtual Machine allows
an application to ha
- URLConnection (java.net)
A connection to a URL for reading or writing. For HTTP connections, see
HttpURLConnection for docume
- Dictionary (java.util)
Note: Do not use this class since it is obsolete. Please use the Map interface
for new implementatio
- SortedSet (java.util)
SortedSet is a Set which iterates over its elements in a sorted order. The order
is determined eithe
- Semaphore (java.util.concurrent)
A counting semaphore. Conceptually, a semaphore maintains a set of permits. Each
#acquire blocks if
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