C++ How to Program (10th Edition)
10th Edition
ISBN: 9780134448237
Author: Paul J. Deitel, Harvey Deitel
Publisher: PEARSON
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Textbook Question
Chapter 2, Problem 2.7E
Discuss the meaning of each of the following objects:
a) std: :cin
b) std: : cout
(a)
Expert Solution
To determine
To discuss the meaning of std::cin.
Explanation of Solution
cin is an object which is used to read the data from input devices in a C++ program. Here, std is the standard I/O reader. It needs “iostream” header file to be included with preprocessor as #include<iostream>.std::cin is normally connected to the keyboard to input data. Data is inputted by a concatenating stream extraction operator (>gt;).
So, std::cin is used to read input from the user.
(b)
Expert Solution
To determine
To discuss the meaning of std::cout.
Explanation of Solution
cout is an object which is used to write the output to the console in a C++ program. Here, std is the standard I/O reader. It needs “iostream” header file to be included with preprocessor as #include<iostream>.std::cout is normally connected to screen to output the data.std::cout indicates that the cout is used from “namespace ” std. Data is outputted by a concatenating stream insertion operator (<<).
So,std::cout will send the stream of characters to the standard output stream object.
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Chapter 2 Solutions
C++ How to Program (10th Edition)
Ch. 2 - Discuss the meaning of each of the following...Ch. 2 - Fill in blanks in each of the following: a)...Ch. 2 - Write a single C++ statement or line that...Ch. 2 - State which of the following are true and which...Ch. 2 - Fill in the blanks in each of the following: a)...Ch. 2 - What, if anything, prints when each of the...Ch. 2 - Which of the following statements contain...Ch. 2 - Given the algebraic equation y — ax 3 + 7. which...Ch. 2 - (OrderofEvaluation) State the order of evaluation...Ch. 2 - (Arithmetic) Write a program that asks the user to...
Ch. 2 - (Printing) Write a program that prints the numbers...Ch. 2 - (Comparing Integers) Write a program that asks the...Ch. 2 - (Arithmetic, Smallest and Largest) Write a program...Ch. 2 - (Diameter, Circumference and Area of a Circle)...Ch. 2 - (Displaying Shapes with Asterisks) Write a program...Ch. 2 - What does the fallowing code print? Cout “*\n...Ch. 2 - (Largest and Smallest Integers) Write a program...Ch. 2 - (Odd or Even) Write a program that reads an...Ch. 2 - (Multiples)Write a program that reads in two...Ch. 2 - (Checkerboard Pattern) Display the following...Ch. 2 - (Integer Equivalent of a Character) Here is a peek...Ch. 2 - (Digits of an Integer) Write a program that inputs...Ch. 2 - (Table) Using the techniques of this chapter,...Ch. 2 - (Body Mass Index Calculator) We introduced the...Ch. 2 - (Car-Pool Savings Calculator) Research several...
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