- Creating JSON documents from java classes using gson
- startActivity (Activity)
- getSupportFragmentManager (FragmentActivity)
- getSystemService (Context)
- URLConnection (java.net)
A connection to a URL for reading or writing. For HTTP connections, see
HttpURLConnection for docume
- Collections (java.util)
This class consists exclusively of static methods that operate on or return
collections. It contains
- Set (java.util)
A Set is a data structure which does not allow duplicate elements.
- Pattern (java.util.regex)
Patterns are compiled regular expressions. In many cases, convenience methods
such as String#matches
- ZipFile (java.util.zip)
This class provides random read access to a zip file. You pay more to read the
zip file's central di
- JTextField (javax.swing)
- From CI to AI: The AI layer in your organization