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- findViewById (Activity)
- startActivity (Activity)
- scheduleAtFixedRate (Timer)
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A connection to a URL for reading or writing. For HTTP connections, see
HttpURLConnection for docume
- SQLException (java.sql)
An exception that indicates a failed JDBC operation. It provides the following
information about pro
- Date (java.util)
A specific moment in time, with millisecond precision. Values typically come
from System#currentTime
- Properties (java.util)
A Properties object is a Hashtable where the keys and values must be Strings.
Each property can have
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Patterns are compiled regular expressions. In many cases, convenience methods
such as String#matches
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