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Chapter 2: Problem 2

To use cout statements you must include the ___________file in your program.

Short Answer

Expert verified
Answer: To use 'cout' statements in a C++ program, the 'iostream' file must be included. To include the 'iostream' file in your code, add the following line at the beginning of the program: `#include `.

Step by step solution

01

Identify the required file

To use 'cout' statements in a C++ program, you must include the 'iostream' file which contains the necessary functions and objects for input and output operations.
02

Include the file in your program

To include the 'iostream' file in your C++ program, add the following line at the beginning of your code: ```cpp #include ```
03

Use 'cout' statement for output

Now that the 'iostream' file has been included, you can use the 'cout' statement to display output. For example, to display a string "Hello, world!" on the screen, use the following code: ```cpp #include int main() { std::cout << "Hello, world!" << std::endl; return 0; } ``` Note that 'std::' is a namespace that includes 'cout' and 'endl', which are both standard elements of the 'iostream' file.

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