> For the complete documentation index, see [llms.txt](https://mr-poston-1.gitbook.io/c++/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mr-poston-1.gitbook.io/c++/1.-c++-basics/1.2-basic-data-types/1.2.4-booleans.md).

# 1.2.4 Booleans

Like other computer languages, Booleans are true/false variables. They work very much like any other computer languages but do have one aspect a little different than a language such as Java.

In C++, Booleans are declared as type `bool`. They can be declared and initialized or just declared, just like other variables that you saw in C++.

```
bool b1 = true;

bool b2;
b2 = false;
```

The one thing that is a little different compared to Java is that Booleans are stored and printed as either a 1 or 0. (1 for true).

```
cout << b1 << endl; // true = 1
```

You can actually assign them values of 1 and 0 as well, but `true` and `false` will work for the definition.

### Logical Operators

Like Java and other languages, C++ makes use of logical operators for Booleans. See the table below.

| Operator | Description                                                                    |
| -------- | ------------------------------------------------------------------------------ |
| `&&`     | And operator. If both values are true, returns true, otherwise returns false.  |
| `\|\|`   | Or operator. If either value is true, returns true, otherwise returns false.   |
| `!`      | Not operator. Returns the opposite value. For example, if true, returns false. |

### Try This Example

{% embed url="<https://onlinegdb.com/75Yt3eK5n>" %}
Booleans
{% endembed %}


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