- Start an intent from android
- getSharedPreferences (Context)
- getContentResolver (Context)
- findViewById (Activity)
- FileOutputStream (java.io)
An output stream that writes bytes to a file. If the output file exists, it can
be replaced or appen
- PrintWriter (java.io)
Wraps either an existing OutputStream or an existing Writerand provides
convenience methods for prin
- KeyStore (java.security)
KeyStore is responsible for maintaining cryptographic keys and their owners.
The type of the syste
- Arrays (java.util)
This class contains various methods for manipulating arrays (such as sorting and
searching). This cl
- TreeSet (java.util)
TreeSet is an implementation of SortedSet. All optional operations (adding and
removing) are support
- Kernel (java.awt.image)
- Best IntelliJ plugins