Chapter 12: Problem 57

True or False The same output formatting techniques used with cout may also be used with file stream objects.

Short Answer

Expert verified

Answer: True

Step by step solution

Understanding `cout` formatting techniques

`cout` (console out) is an object of ostream class from the iostream library, which is a part of the C++ Standard Library. It is used to print text on the console output (usually the screen) and has several formatting techniques, such as: - Manipulators like `endl`, `flush`, `setw`, `setprecision`, etc. - Stream operators like `<<`. For example: ```c++ #include #include // For setw and setprecision using namespace std; int main() { cout << "Hello, World!" << endl; cout << setw(10) << setprecision(2) << fixed << 3.14159 << endl; int a = 5; double b = 2.5; cout << a << " * " << b << " = " << a*b << endl; return 0; } ```

Understanding file stream objects formatting techniques

File stream objects such as `ofstream` (output file stream) and `ifstream` (input file stream) are part of the fstream library, which is also a part of the C++ Standard Library. File stream objects are used to manipulate files, enabling you to read from, write to, or even both to, the files. While using file stream objects, we can apply the same formatting techniques as with `cout`. Some common manipulators and stream operators can be used with ofstream: - Manipulators like `endl`, `flush`, `setw`, `setprecision`, etc. - Stream operators like `<<`. For example: ```c++ #include #include // For setw and setprecision #include // For ofstream using namespace std; int main() { ofstream outputFile; outputFile.open("output.txt"); outputFile << "This is a test!" << endl; outputFile << setw(10) << setprecision(2) << fixed << 3.14159 << endl; int a = 5; double b = 2.5; outputFile << a << " * " << b << " = " << a*b << endl; outputFile.close(); return 0; } ``` In this example, we can see that the same manipulators and stream operators are used for formatting output in the `ofstream` object, just like with `cout`.

Conclusion

Based on the understanding of output formatting techniques used with cout and file stream objects, we can determine that the same output formatting techniques can be used for both. Therefore, the statement is **True**.

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True or False The same output formatting techniques used with cout may also be used with file stream objects.

Short Answer

Step by step solution

Understanding `cout` formatting techniques

Understanding file stream objects formatting techniques

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