- Creating JSON documents from java classes using gson
- getExternalFilesDir (Context)
- putExtra (Intent)
- onCreateOptionsMenu (Activity)
- FileWriter (java.io)
A specialized Writer that writes to a file in the file system. All write
requests made by calling me
- SecureRandom (java.security)
This class generates cryptographically secure pseudo-random numbers. It is best
to invoke SecureRand
- Timestamp (java.sql)
A Java representation of the SQL TIMESTAMP type. It provides the capability of
representing the SQL
- DecimalFormat (java.text)
A concrete subclass of NumberFormat that formats decimal numbers. It has a
variety of features desig
- Comparator (java.util)
A Comparator is used to compare two objects to determine their ordering with
respect to each other.
- Executors (java.util.concurrent)
Factory and utility methods for Executor, ExecutorService,
ScheduledExecutorService, ThreadFactory,
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