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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.
how class and object work
Explain traversing through a collector using Iterator. Ans. We can access each element in Collection by using Iterators regardless of how they are organized in collector. Ite
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Explain the Rules for toString() Methods ? toString() methods should return a single line of text that does not contain any carriage returns or linefeeds. toString() methods
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Suppose that: A is the set of characters in the string "pellet"; B is the set of characters in the string "teller"; C is the set of characters in the string "pertinent"; a
What is Constraints explain with example? One of the purposes to use constructors and setter techniques rather than directly accessing fields is to enforce constraints. For exa
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