- Running tasks concurrently on multiple threads
- getSharedPreferences (Context)
- addToBackStack (FragmentTransaction)
- startActivity (Activity)
- FileOutputStream (java.io)
An output stream that writes bytes to a file. If the output file exists, it can
be replaced or appen
- FileWriter (java.io)
A specialized Writer that writes to a file in the file system. All write
requests made by calling me
- URLEncoder (java.net)
This class is used to encode a string using the format required by
application/x-www-form-urlencoded
- HashSet (java.util)
HashSet is an implementation of a Set. All optional operations (adding and
removing) are supported.
- Scanner (java.util)
A parser that parses a text string of primitive types and strings with the help
of regular expressio
- Table (org.hibernate.mapping)
A relational table
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