This tutorial shows multiple ways to Generate Random Numbers in the Dart programming language.

A random number is a unique number generated between a minimum and maximum value for multiple requests

The returned number is always between the ranges of values provided.

## Dart random Number Generator example

Dart provides `dart:math`

that contains a `Random`

class to provide a random generator.
It provides the `nextInt`

method takes a maximum value and returns a random number.

```
int nextInt(int max)
```

minimum number is taken as zero as a minimum and the maximum number is the given max value.

Here is a simple example to generate Random Generator

```
import 'dart: math';
main() {
var random = Random();
print(random.nextInt(10)); //Random number between 0 to 10
print(random.nextInt(100)); //Random number between 0 to 100
print(random.nextInt(200)); //Random number between 0 to 100
print(random.nextInt(1000)); //Random number between 0 to 1000
}
```

- Imported the
`dart:math`

package into a program using the`import`

keyword - Create a Random variable using the
`var`

keyword - Call nextInt() with seed number.
- Random Number always generated between 0 to seed number

Output:

```
4
70
47
294
```

## Dart random Number Generator within a range example

This is a `generating random number between min and max value of ranges example`

.

```
import 'dart:math';
main() {
var random = Random();
int min = 10;
int max = 20;
var randomNumber = min + random.nextInt(max - min);
print("$randomNumber is random number between $min and $max");
print(randomNumber);
}
```

Output:

```
19 is a random number between 10 and 20
19
```

## How to generate a random number in dart excluding a particular number?

For example, You want to generate a random number between 0 to 10 and the generated random number must not be 5.

Here is an example program to generate a Random Number excluding given number

```
import 'dart:math';
main() {
var random = Random();
var excludeNumber = 5;
var randomNumber;
do {
randomNumber = random.nextInt(10);
} while (randomNumber == excludeNumber);
print(randomNumber);
}
```