- Running tasks concurrently on multiple threads
- getSharedPreferences (Context)
- onCreateOptionsMenu (Activity)
- getApplicationContext (Context)
- FileOutputStream (java.io)
An output stream that writes bytes to a file. If the output file exists, it can
be replaced or appen
- MalformedURLException (java.net)
This exception is thrown when a program attempts to create an URL from an
incorrect specification.
- KeyStore (java.security)
KeyStore is responsible for maintaining cryptographic keys and their owners.
The type of the syste
- SQLException (java.sql)
An exception that indicates a failed JDBC operation. It provides the following
information about pro
- Arrays (java.util)
This class contains various methods for manipulating arrays (such as sorting and
searching). This cl
- 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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