What is source and listener, Computer Engineering

A source is an object that produces an event. This happens when the internal state of that object changes in some way. A listener is an object that is notified when an event happens. It has two main requirements. First, it must have been registered with a source to receive notifications about particular event. Second, it must implement essential methods to receive and process these notifications.                

 

 

Posted Date: 4/8/2013 2:30:47 AM | Location : United States







Related Discussions:- What is source and listener, Assignment Help, Ask Question on What is source and listener, Get Answer, Expert's Help, What is source and listener Discussions

Write discussion on What is source and listener
Your posts are moderated
Related Questions
Write a decision table that specifies the rules for the game of checkers

Control Unit (CU)  : Every PEs are under the control of one control unit. CU controls the inter communication among the PEs. There is a local memory of CU also known as CY memory.

Assume that you have been asked to solve problem with exact area constraints, the area error being no more than 1% for each department. What are the linear equations you would nee

Q. Explain Program Source Code? Program Source Code  Every assembly language statement appears as: {identifier}  Keyword {{parameter},}  {;comment}.   Element of a


Your JDBC code may throw the following exception: "The coordinator has rolled back the transaction.No further JDBC access is permitted within this transaction." The WebLogic

Q. Define Decision Support System? Ans. The decision support system is an information system application which help decision making. DSS tends to be used in planning or analy

Define data path. The registers, the ALU, and the interconnecting bus are collectively referred to as the data path.


Explain data rates in public switched telephone network. Data rates in PSTNs : A voice channel in a public switched telephone network is band restricted with a nominal bandwid