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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.
Consider the following Java definition of an integer list class. class IntegerList { private int[] list = new int[200]; private int size = 0; public boolean append(int value) {
Define Array ? Indexed collections of variable of similar data types or we can say a Set of organized variables of similar type.
The last exercise of each assignment will be continuous from assignment to assignment and will have the goal of building an e-store website by the end of the course. Date & Tim
1. Which of the following are not valid Java identifiers, and why? (a) wolVes (b) United(there is only one) (c) 87 (d) 5 3 (e) Real ale (f) isFound?by 2. A cla
Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4
What does it mean that a method or field is "static"? Static variables and methods are instantiated only once per class. In other words they are class variables, not example va
Explain the Coordinate System? Java uses the standard, two-dimensional, computer graphics coordinate system. The first visible pixel in the upper left-hand corner of the applet
Describe toString() Methods ? Print methods are general in some languages, but most Java programs operate differently. You can use System.out.println() to print any object. The
Implement relationship using a java program. Assume each course has a course title, code, subject and number of credits while each student has a name, registration number, list of
What is Mixing Data Types? As well as merging various operations, you can mix and match various numeric data types on the similar line. The program below uses both ints and dou
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