- Creating JSON documents from java classes using gson
- putExtra (Intent)
- scheduleAtFixedRate (ScheduledExecutorService)
- addToBackStack (FragmentTransaction)
- File (java.io)
An "abstract" representation of a file system entity identified by a pathname.
The pathname may be a
- System (java.lang)
Provides access to system-related information and resources including standard
input and output. Ena
- Path (java.nio.file)
- Time (java.sql)
Java representation of an SQL TIME value. Provides utilities to format and parse
the time's represen
- SortedMap (java.util)
A map that has its keys ordered. The sorting is according to either the natural
ordering of its keys
- StringUtils (org.apache.commons.lang)
Operations on java.lang.String that arenull safe.
* IsEmpty/IsBlank - checks if a String contains
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