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  Collection
  
  The class collection is consists exclusively of static methods that operate on or return collections...
  
  

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  Swing
  
  Swing is also part of Sun Microsystems' Java Foundation Classes (JFC) an Application Programming Interface (API)..
  
  

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  RMI
  
  RMI provides for remote communication between programs written in the Java programming language.
  

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  JDBC
  
  Java database connectivity is the API which defines how the client may access the database. It provide methods to querying the database..
  

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  Networking
  
  Networking is provide communication between computer systems or devices and provide ability to exchange data between them.
  

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  AT-COMMAND
  
  AT is the abbreviation of ATtention .AT commands also called Hayes command .At command is used to control modem.
  

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  IVR
  
  Interactive Voice Response (IVR) applications enable callers to interact with any software....
  

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  Jasper-Reports
  
  World's most popular open source reporting engine able to use data coming from any kind of data source..
  

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  Spring2.5 MVC
  
  Spring MVC provide the facility to developed web application in Spring Framework...