Answered: Define left and right Manipulators.

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

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Question

Define left and right Manipulators.

Expert Solution

Step 1

Manipulators:

The stream manipulators are the functions which are specially designed for “insertion(<<)” and “extraction(>>)”.
The “cout” facilitates ways to format the output data.
This also effects the appearance of the output data on the console screen.

Step 2

Left manipulators:

The left() function is used to set the adjust field format flag for the given string.
In order to display the output in left-justified, the keyword “left” is used.
The width() is used to pad the field.

For example:

#include <iostream>

using namespace std;

int main()

{

// Initializing the integer

double x = 2.24;

// Using left()

cout << "Left Manipulator:";

//Setting width

cout.width(12);

//Printing

cout << left << x << endl;

return 0;

}

Output:

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