What is the output of the following code: #include #include using namespace std; int main(){ double x = 142.366; cout <« setw( 5) << setiosflags(ios::fixed) << setprecision(2) << x « endl; cin.ignore(); return 0; }

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
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What is the output of the following code:

```cpp
#include <iostream>
#include <iomanip>
using namespace std;

int main() {
    double x = 142.366;
    cout << setw(5) << setiosflags(ios::fixed) << setprecision(2) << x << endl;
    cin.ignore();
    return 0;
}
```

### Explanation:

This C++ code sets a double variable `x` to `142.366`. The `cout` statement uses manipulators `setw(5)`, `setiosflags(ios::fixed)`, and `setprecision(2)`.

- `setw(5)`: Sets the width of the output field to 5 characters. However, since `142.37` (after applying precision) requires more than 5 characters, this has no effect here.
- `setiosflags(ios::fixed)`: Ensures the number is printed in fixed-point notation.
- `setprecision(2)`: Sets the precision of the output to 2 decimal places.

As a result, the output will be:

```
142.37
```
Transcribed Image Text:What is the output of the following code: ```cpp #include <iostream> #include <iomanip> using namespace std; int main() { double x = 142.366; cout << setw(5) << setiosflags(ios::fixed) << setprecision(2) << x << endl; cin.ignore(); return 0; } ``` ### Explanation: This C++ code sets a double variable `x` to `142.366`. The `cout` statement uses manipulators `setw(5)`, `setiosflags(ios::fixed)`, and `setprecision(2)`. - `setw(5)`: Sets the width of the output field to 5 characters. However, since `142.37` (after applying precision) requires more than 5 characters, this has no effect here. - `setiosflags(ios::fixed)`: Ensures the number is printed in fixed-point notation. - `setprecision(2)`: Sets the precision of the output to 2 decimal places. As a result, the output will be: ``` 142.37 ```
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setprecision (2) basically round off decimal place upto 2 digit

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