- Start an intent from android
- getSharedPreferences (Context)
- addToBackStack (FragmentTransaction)
- scheduleAtFixedRate (ScheduledExecutorService)
- FileOutputStream (java.io)
An output stream that writes bytes to a file. If the output file exists, it can
be replaced or appen
- OutputStream (java.io)
A writable sink for bytes.Most clients will use output streams that write data
to the file system (
- 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
- Scanner (java.util)
A parser that parses a text string of primitive types and strings with the help
of regular expressio
- AtomicInteger (java.util.concurrent.atomic)
An int value that may be updated atomically. See the java.util.concurrent.atomic
package specificati
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