- Running tasks concurrently on multiple threads
- getSystemService (Context)
- findViewById (Activity)
- setRequestProperty (URLConnection)
- RandomAccessFile (java.io)
Allows reading from and writing to a file in a random-access manner. This is
different from the uni-
- ServerSocket (java.net)
This class represents a server-side socket that waits for incoming client
connections. A ServerSocke
- Connection (java.sql)
A connection represents a link from a Java application to a database. All SQL
statements and results
- Map (java.util)
A Map is a data structure consisting of a set of keys and values in which each
key is mapped to a si
- HttpServletRequest (javax.servlet.http)
Extends the javax.servlet.ServletRequest interface to provide request
information for HTTP servlets.
- StringUtils (org.apache.commons.lang)
Operations on java.lang.String that arenull safe.
* IsEmpty/IsBlank - checks if a String contains
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