- Making http post requests using okhttp
- startActivity (Activity)
- scheduleAtFixedRate (Timer)
- orElseThrow (Optional)
Return the contained value, if present, otherwise throw an exception to be
created by the provided s
- ArrayList (java.util)
ArrayList is an implementation of List, backed by an array. All optional
operations including adding
- Collection (java.util)
Collection is the root of the collection hierarchy. It defines operations on
data collections and t
- Logger (org.apache.log4j)
This is the central class in the log4j package. Most logging operations, except
configuration, are d
- VirtualMachine (com.sun.tools.attach)
A Java virtual machine.
A VirtualMachine represents a Java virtual machine to which this Java vir
- JOptionPane (javax.swing)
- BasicDataSource (org.apache.commons.dbcp)
Basic implementation of javax.sql.DataSource that is configured via JavaBeans
properties. This is no
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