- Creating JSON documents from java classes using gson
- startActivity (Activity)
- getContentResolver (Context)
- runOnUiThread (Activity)
- Permission (java.security)
Legacy security code; do not use.
- Collections (java.util)
This class consists exclusively of static methods that operate on or return
collections. It contains
- GregorianCalendar (java.util)
GregorianCalendar is a concrete subclass of Calendarand provides the standard
calendar used by most
- Timer (java.util)
Timers schedule one-shot or recurring TimerTask for execution. Prefer
java.util.concurrent.Scheduled
- Pattern (java.util.regex)
Patterns are compiled regular expressions. In many cases, convenience methods
such as String#matches
- Collectors (java.util.stream)
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