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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 implemented, or not at all implemented. One key difference between abstract classes and interfaces is that a class may implement an unlimited number of interfaces, but may inherit from only one abstract (or any other kind of) class. A class that is derived from an abstract class may still implement interfaces. Abstract classes are useful when creating components because they allow 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 needed. They also version well, because if additional functionality is needed in derived classes, it can be added to the base class without breaking code.
The FontMetrics class is used to describe implementation-specific properties, like ascent and descent, of a Font object.
In order to get the information kept in a Binary Search Tree in the descending order, one should traverse it in which of the following order? Right, Root, Left
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what is transform mapping and transaction mapping?
What is the difference between a Substructure and an Append Structure? In case of a substructure, the reference originates in the table itself, in the form of a statement
How many 128 × 8 RAM chips are required to provide a memory capacity of 2048 bytes. Ans. Available here RAM chips = 128 x 8 Required the memory capacity = 2048 x 8 No. of chip
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Zero address instruction. It is also possible to use instruction where the location s of all operand is explained implicitly. This operand of the use of the method for storing
What are the basic features of Supply Chain Management? Features of Supply Chain Management Supply Chain Management uses different methods to find out, affect and chang
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