- Creating JSON documents from java classes using gson
- startActivity (Activity)
- requestLocationUpdates (LocationManager)
- setContentView (Activity)
- FileOutputStream (java.io)
An output stream that writes bytes to a file. If the output file exists, it can
be replaced or appen
- SimpleDateFormat (java.text)
Formats and parses dates in a locale-sensitive manner. Formatting turns a Date
into a String, and pa
- Collections (java.util)
This class consists exclusively of static methods that operate on or return
collections. It contains
- TimeZone (java.util)
TimeZone represents a time zone offset, and also figures out daylight savings.
Typically, you get a
- Logger (org.apache.log4j)
This is the central class in the log4j package. Most logging operations, except
configuration, are d
- Component (java.awt)
A component is an object having a graphical representation that can be displayed
on the screen and t
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