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How instant messaging works? Write the steps involved in this process?
The Instant Messaging services available permit us to manage a list of people (contacts) that we interact along with regularly. We can send instant messages to any of the contacts within our list as long as that contact is online. Subsequent steps are included in IM working:
1. User commences the IM client.2. IM client finds the IM server & logs in.3. It launches communication info (IP address, etc) to the IM server.4. IM server searches user's contacts & sends him/her the communication info.5. IM server also notifies the contacts which the user is online; sends his/her communication info to them.6. The user's & the contact's IM clients are prepared to communicate directly (P2P).7. As new contact has come online, IM server informs them about the user being online and many more.8. Multiple, real-time chat are possible.9. While the user logs-off, his/her IM client informs the IM server.10. IM servers wipes away the temporary file and inform the user's contact's about his/her ‘offline' status.
What is an Applets? Applets: These are small java programs. They can send from one to another computer over internet by using Applet Viewer which supports java. Applets
1. Make a class Rational to provide at least following methos and constructors: Rational r1= new Rational (3,5); Rational r2= new Rational (4,7); Rational r3=r1.add(r2);
What are the advantages of multimedia presentations? Write any five. Following are the benefits of multimedia presentations: • Great tool for efficiently communicating ideas
what is thread synchronization
Describe the final keyword ? The final keyword is used in various different contexts as a modifier meaning in which what it modifies cannot be changed in a few sense. final c
what are Objects and Fields in java
a) BeanNameAutoProxyCreator b) DefaultAdvisorAutoProxyCreator c) Metadata autoproxying
(Login User Control) Create a UserControl called LoginPasswordUserControl that contains a Label (loginLabel) that displays string "Login:", a TextBox (loginTextBox), where the user
What is an object's lock and which objects have locks? An object's lock is a mechanism that is used by multiple threads to get synchronized access to the object. A thread may i
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