- Parsing JSON documents to java classes using gson
- getApplicationContext (Context)
- startActivity (Activity)
- runOnUiThread (Activity)
- ArrayList (java.util)
ArrayList is an implementation of List, backed by an array. All optional
operations including adding
- Locale (java.util)
Locale represents a language/country/variant combination. Locales are used to
alter the presentatio
- TreeSet (java.util)
TreeSet is an implementation of SortedSet. All optional operations (adding and
removing) are support
- 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
- ImageIO (javax.imageio)
- Best IntelliJ plugins