Which of the following are true about abstraction? (Multiple choice can be selected) A It is concealing how something works. B It is the hiding of the actual implementation of codes. C It protects the integrity of data inside the program D It restricts the modification of the values of the variables/field by restricting access to the variables E None of the actual ther choices are correc

Which of the following are true about abstraction? (Multiple choice can be selected) A It is concealing how something works. B It is the hiding of the actual implementation of codes. C It protects the integrity of data inside the program D It restricts the modification of the values of the variables/field by restricting access to the variables E None of the actual ther choices are correc

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Similar questions

Week One: Introduction to Object oriented Programming Course overview. Reading: Key Differences between Procedural Programming and Object-Oriented Programming (OOP). Chapter One Assignment: Write C++ code to implement void and return type functions. The code should contain more than one function. Use the implemented code to investigate the possibility of the following by indicating them as valid or invalid 1- Returning (directly or indirectly) values using void function. 2- Returning (directly or indirectly) multiple values. 3- Passing an Array to a function. 4- Implementing more than one function with same name. 5- Controlling access to functions. 6- Declaring a variable with multiple data types simultaneously.
Use C++ Language 1. Write a program in C++ and make a class ‘encap’. Make a private attribute ‘x’ and access that attribute and modify using ‘set’ function. Give set function an input argument to modify the value. Display the modified value using ‘get’ function. 2. Make a Class ‘adder’ which has three public methods/functions. i. A constructor to make the value of int ‘total’ zero. ii. ‘Addnumber’ with input argument to add the number to total. iii. ‘Gettotal’ to return the total. Int total is private. Add int 20,30 and 40 by calling addnumber function in main and display result on screen. 3. Create a class having two private integers and use public methods to swap their values and display the initial and swaped values on screen.
subject: programmimng language: c++ Question: Create a class Time with private data members hour, minute, second. The class must alsohave public functions setMinute(), setHour and setSecond() to set values of hour, minuteand second, and printTime() to print time in format: hh:mm:ss
Choose the correct answers following for all C++
The book makes the claim that "All built-in data types ... are ADTs". Think specifically about primitive data types (int, char, double, etc.): Do you agree or disagree? If you agree, explain why built-in data types fulfill the definition of an ADT. (Be sure to refer to at least one specific example.) If you disagree, explain why (give an example of a built-in type and why it doesn't meet the criteria for an ADT). (To be clear: "built-in" means part of the language specification and often given special recognition by the compiler. Classes that are part of a language's library -- such as ArrayList in Java -- aren't considered "built-in".)
A. Explain the difference between Classes and Objects. B. Give one example for functions declaration.
Write a program using the C ++ OOP language, and the program should contain at least the following to four topics Inheritance Operator Overloading Vector Template Exception Handling File Stream Friend function and Friend class The following must be taken into account: 1- The arrangement 2-The idea of the program 3- The topics that have been chosen 4 - A simple explanation of the program's work 5- Writing comments explaining each step of the program 6- Show the implementation screen
Explain well. Have a nice day:)
You must use one other model (math/random).
a) What are the main feature of OOPS? b) Is there any difference between Class and Structure? Prove with the help of example. c) Is there any difference between abstract and concrete class? Give proper justification. d) What do you think about data hiding, data encapsulation and data binding? Elaborate. e) When a program that uses the constructor overloading is compiled, C++ compiler checks the number of parameters, their order and data types and marks them differently.
Need help in this question in relation to Binding Time