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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.
The decimal equivalent of Binary number 11010 is ? Ans. 11010 = 1 X 2 4 + 1 X 2 3 + 0 X 2 2 + 1 X 2 1 = 26.
The Laser Computer Printer Company decides monthly what to produce during the subsequent month. They produce three types of printers, the Laser Rocket, the Alpha Laser, and the La
Name some popular storage devices In contrasts with storage, which 1) retains data and programs irrespective of whether they are currently in use or not, (2) retains data
Sun and Ni's Law The Sun and Ni's Law is a generalization of Amdahl's Law as well as Gustafson's Law. The fundamental idea underlying the Sun and Ni's Law is to find the soluti
How many flip-flops are required to construct mod 30 counter ? Ans. Mod - 30 counter +/- requires 5 Flip-Flop as 30 5 . Mod - N counter counts overall ' N ' number of state
A sample rate of is required for a good quality representation of telephone conversation. A sample rate of 50 times/second /mile of distance travelled are needed fo
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With LDB one can change the pre-generated selection screen to their needs Yes with LDB one can alter the pre-generated selection screen.
Explain at least one modulation technique used for high speed modems. FSK - Frequency Shift Keying: In such technique the frequency of the carrier signal is changed as per to
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