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What is an interface and what is an abstract class? Please, expand by examples of using both. Explain why?
Abstract classes are closely related to interfaces. They are classes that cannot be instantiated, and are frequently either partially executed, or not at all implemented. One key difference among abstract classes and interfaces is that a class may execute an unlimited number of interfaces, but may inherit from only single abstract (or any other kind of) class. A class that is derived from an abstract class may still execute interfaces. Abstract classes are useful when creating components because they permit you specify an invariant level of functionality in some methods, but leave the implementation of other methods until a specific implementation of that class is required. They also version well, because if additional functionality is required in derived classes, it can be added to the base class without breaking code.
Refining the Ratio Analysis Basically, refinement leads to purity. Thus to get a cleaner, more understandable and consistent design need to iterate analysis process. R
Modus ponens rule: In fact the general format for the modus ponens rule is as follows: like if we have a true sentence that states the proposition A implies proposition B and
What is virtual address? The binary address that the processor used for either instruction or data known as virtual address.
Illustrate the role of World Wide Web into the field of e-commerce. In the 1990 year, the advent of the World Wide Web upon the Internet represented a turning point into e-com
What format should my database be saved in to allow different versions of Microsoft Access to open the database? Ans) MS Access is not backwards compatible. To share tables amon
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According to the report, network 1 and network 2 are not able to reach network 3. As shown on OTBNetwork Topology above, OTB Inc. has 2 routing protocols running due transition iss
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Interrupt vector table is always created in first 1K area of the memory. Explain why? When CPU receives an interrupt type number from PIC, it uses this number to look up corres
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