# Using FastNoise
**URL:** https://discourse.processing.org/t/using-fastnoise/5587
**Category:** Libraries
**Created:** [November 16, 2018, 9:08am UTC](https://discourse.processing.org/t/using-fastnoise/5587 "2018-11-16T09:08:38Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@drc](https://discourse.processing.org/u/drc)
#### Post date: [November 16, 2018, 9:08am UTC](https://discourse.processing.org/t/using-fastnoise/5587/1 "2018-11-16T09:08:39Z")
Hi,
I’d like to use the FastNoise library. I drag&dropped the FastNoise.java to a new sketch, and with the following code:
```auto
FastNoise myNoise;
void setup() {
myNoise.SetNoiseType(FastNoise.NoiseType.SimplexFractal);
}
```
I get the NullPointerException error, highlighting the only line in setup.
Could you please help me here? How should I use this library?
thanks!
---
### Author:  [@GoToLoop](https://discourse.processing.org/u/GoToLoop)
#### Post date: [November 16, 2018, 9:54am UTC](https://discourse.processing.org/t/using-fastnoise/5587/2 "2018-11-16T09:54:14Z")
> [@drc](#):
>
> I get the NullPointerException error, highlighting the only line in **setup()**.
- You had merely declared field _myNoise_ w/o initializing it: `FastNoise myNoise;`
- A reference field always defaults to `null` under Java.
- We can’t do anything to a `null` value but checking out whether a variable has it stored.
> [@drc](#):
>
> `myNoise.SetNoiseType(FastNoise.NoiseType.SimplexFractal);`
Ru sure it’s **SetNoiseType()**? Under Java’s naming conventions that should be named: **setNoiseType()**. ☕
---
### Author:  [@hamoid](https://discourse.processing.org/u/hamoid)
#### Post date: [November 16, 2018, 10:37am UTC](https://discourse.processing.org/t/using-fastnoise/5587/3 "2018-11-16T10:37:44Z")
Here’s the link to the library:
> **[Auburns/FastNoise\_Java](https://github.com/Auburns/FastNoise_Java)**
>
> FastNoise Java Version. Contribute to Auburns/FastNoise\_Java development by creating an account on GitHub.
Apparently it is `SetNoiseType` and not `setNoiseType`. For some reason all the methods are upper case.
In Ubuntu I had to download one dependency to make it work:
```
$ sudo apt install libvecmath-java
$ dpkg -L libvecmath-java | grep jar$
/usr/share/java/vecmath-1.5.2.jar
/usr/share/java/vecmath.jar
$ cd into/my/sketch/folder
$ mkdir code
$ cp /usr/share/java/vecmath.jar code/
```
Then I could run
```auto
FastNoise myNoise;
void setup() {
myNoise = new FastNoise();
myNoise.SetNoiseType(FastNoise.NoiseType.SimplexFractal);
println(myNoise.GetNoise(0.1, 0.2, 0.3));
}
```
The examples in GitHub look interesting. For example:
---
### Author:  [@hamoid](https://discourse.processing.org/u/hamoid)
#### Post date: [November 16, 2018, 10:41am UTC](https://discourse.processing.org/t/using-fastnoise/5587/4 "2018-11-16T10:41:12Z")
By the way, [this change](https://github.com/Auburns/FastNoise_Java/pull/1/files?utf8=%E2%9C%93&diff=unified&w=1) removes the dependency on javax.vecmath, making it self contained.
---
### Author:  [@drc](https://discourse.processing.org/u/drc)
#### Post date: [November 17, 2018, 10:28am UTC](https://discourse.processing.org/t/using-fastnoise/5587/5 "2018-11-17T10:28:13Z")
Thank you both! Now it works fine (I’ve already downloaded the vecmath before).