C++ How to Program (10th Edition)
C++ How to Program (10th Edition)
10th Edition
ISBN: 9780134448237
Author: Paul J. Deitel, Harvey Deitel
Publisher: PEARSON
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Chapter 2, Problem 2.7E

Discuss the meaning of each of the following objects:
a) std: :cin
b) std: : cout

(a)

Expert Solution
Check Mark
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
Check Mark
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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C++ How to Program (10th Edition)

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