- Making http post requests using okhttp
- addToBackStack (FragmentTransaction)
- notifyDataSetChanged (ArrayAdapter)
- getApplicationContext (Context)
- UnknownHostException (java.net)
Thrown when a hostname can not be resolved.
- Deque (java.util)
A linear collection that supports element insertion and removal at both ends.
The name deque is shor
- Pattern (java.util.regex)
Patterns are compiled regular expressions. In many cases, convenience methods
such as String#matches
- StringUtils (org.apache.commons.lang)
Operations on java.lang.String that arenull safe.
* IsEmpty/IsBlank - checks if a String contains
- Component (java.awt)
A component is an object having a graphical representation that can be displayed
on the screen and t
- 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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