Define Null reference
Null reference: A value utilized to mean, `no object'. Employed whenever an object reference variable is not referring to the object.
QUESTION 1 The following UML diagram describes an abstract class Customer. This class is to be used as part of a Company's inventory system. The inventory system will contain many different types of customers. A separate s
Timesharing system: It is an operating system which shares processor time among multiple processes by assigning each a time slice. Once a process's time slice has finished or expired, the other procedure is given a possibility to run.
What is meant by the session?
Describe the layout manager and what are the various types of layout managers accessible?
Deep copy: It is a copy of an object in which copies of all the object's sub-components are also prepared. The resultant object may, in effect, be a clone of the novel.
State the term UDDI?
Pattern: It is a recurring theme in class usage or design. Interfaces like Iterator encapsulate a pattern of admission to the items in a collection, whereas freeing the client from the requirement to know details of the way in which the collection is
Explain the way to create a Mutex.
Write down the properties exposed through ActiveX controls?
Write a program that prints out 20 random cards form a standard deck of 52 cards. Make sure the program prints out different sets of cards from one run to the next.
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