
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Explain how to utilize wrapper classes for non-object data types to avoid mixed non-object and object values.
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- Explain how to utilize wrapper classes for non-object data types to avoid mixing non-object and object-related values?arrow_forwardPolymorphism: Why is it needed especially from an OOP standpoint? What is the essential concept when you cast objects regarding Polymorphism/Inheritance? (Related Chapters 11,12,13, 19) Generics: Explain Generic Programming. Why is generics important as a data type regarding objects? Polymorphism and Objects: Explain an array of polymorphic objects in a single/double dimensional array. How do you access this? How do you process this? When would you use this? Also, when the new topic/chapter is posted regarding File/IO: Write a few lines of code that allow you to save/retrieve this data from a file using the appropriate class/methods. Do this in two ways: StreamFile I/O and URL access. You can also illustrate this in your code via text (.txt) and binary (.dat) data access. Also, write a few more additional lines of code illustrating StreamFile I/O access for .txt and .bin files.arrow_forwardWhat do you specifically mean when you refer to something as an abstract data type?arrow_forward
- What features distinguish Constructors?arrow_forwardClasses, Objects, Pointers and Dynamic Memory Program Description: This assignment you will need to create your own string class. For the name of the class, use your initials from your name. The MYString objects will hold a cstring and allow it to be used and changed. We will be changing this class over the next couple programs, to be adding more features to it (and correcting some problems that the program has in this simple version). Your MYString class needs to be written using the .h and .cpp format. Inside the class we will have the following data members: Member Data Description char * str pointer to dynamic memory for storing the string int cap size of the memory that is available to be used(start with 20 char's and then double it whenever this is not enough) int end index of the end of the string (the '\0' char) The class will store the string in dynamic memory that is pointed to with the pointer. When you first create an MYString object you should…arrow_forwardExplain how abstract classes and methods workarrow_forward
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