# 
#     

A good application gives a user a wonderful experience upon using it. Sometimes, accepting user input is how the application interacts with the user. Thus, a good experience can involve telling the user that they are not alone.

In C++, `cin` is used to collect user input. 

##
## What is `cin`?

**`cin`** is a predefined object in C++ and an instance of class `<iostream>`. It is used to accept the input from the standard input device, i.e., keyboard.

The **"c"** stands for *character* and the **"in"** stands or *input*, hence `cin` stands for *"character input."*

# 
## Syntax

---
``` c++
cin >> [user input]
```
---

The `cin` uses the extraction operator `>>`. The other part is the user input which could be any character from the keyboard.

# 
## Code

We will create an application that allows users to enter their names and age in the following example.

#include <iostream>
#include <string>

using namespace std;

int main() {
  string name;
  int age;

  cout << "What is your name?\n";
  cin >> name;
  cout << "Hello I'm " << name << endl;
  
  cout << "\nWhat is your age?\n";
  cin >> age;
  cout << "My age is " << age;
  
  return 0;
}

# 
## Output

---
``` xml
What is your name?
Theodore
Hello I'm Theodore

What is your age?
19
My age is 19
```

# 
## Explanation

In the code above, we included the `<string>` library to use it. 

The user is allowed to enter the required inputs. This shows that `cin >>` will enable us to input any value of our choice.

---
> We used the sibling of `cin >>`, which is `cout <<`. This enables us to output values to the console.

How to get user input in C++

C++ uses cin to collect standard input via the keyboard, enabling user interaction. Example: 'cin >> name;'.

How to get user input in C++

What is cin?

Syntax

Code

Output

Explanation

What is `cin`?