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Chapter 3: Problem 18

Write a cout statement so the variable divsales is displayed in a field of eight spaces, in fixed-point notation, with a decimal point and two decimal digits.

Short Answer

Expert verified
Question: Write a cout statement that will display the value of the variable 'divsales' with a field width of 8 spaces, in fixed-point notation, and with two decimal digits. Answer: To display the value of 'divsales' with the specified formatting, write the following cout statement: ```cpp std::cout << std::fixed << std::setprecision(2) << std::setw(8) << divsales; ```

Step by step solution

01

Include Necessary Libraries

Firstly, include the iostream and iomanip libraries in the code to use the cout statement and formatting functions. ```cpp #include #include ```
02

Define the Variable 'divsales'

Before writing the cout statement, define the variable 'divsales' and assign it a sample value. ```cpp double divsales = 1234.56; ```
03

Set Up Fixed-Point Notation, Decimal Point, and Decimal Digits

Use the 'fixed' and 'setprecision' functions from iomanip library to set up fixed-point notation with two decimal digits. ```cpp std::cout << std::fixed << std::setprecision(2); ```
04

Set Up Field Width of Eight Spaces

Use the 'setw' function from the iomanip library to set up a field width of eight spaces for the output of 'divsales'. ```cpp std::cout << std::setw(8); ```
05

Print the Content of 'divsales' with Formatting

Finally, print the content of the 'divsales' variable using cout and apply the specified formatting using the functions from previous steps. ```cpp std::cout << divsales << std::endl; ``` So, the complete code would look like: ```cpp #include #include int main() { double divsales = 1234.56; std::cout << std::fixed << std::setprecision(2); std::cout << std::setw(8); std::cout << divsales << std::endl; return 0; } ``` This code will display 'divsales' with the specified formatting: ```console 1234.56 ```

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