# colorMode throws nullPointerException (java - eclipse)
**URL:** https://discourse.processing.org/t/colormode-throws-nullpointerexception-java-eclipse/18581
**Category:** Coding Questions
**Created:** [March 11, 2020, 12:51am UTC](https://discourse.processing.org/t/colormode-throws-nullpointerexception-java-eclipse/18581 "2020-03-11T00:51:54Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@leo.nerd](https://discourse.processing.org/u/leo.nerd)
#### Post date: [March 11, 2020, 12:51am UTC](https://discourse.processing.org/t/colormode-throws-nullpointerexception-java-eclipse/18581/1 "2020-03-11T00:51:54Z")
Hello. I’m coding my project in Eclipse. I’m trying to change the colorMode to HSB:
```auto
import processing.core.PApplet;
public void settings(){
public class mySketch extends PApplet{
public static void main(String[] args) {
String[] processingArgs = {"MySketch"};
MySketch mySketch = new MySketch();
PApplet.runSketch(processingArgs, MySketch);
}
public void settings() {
g.colorMode(HSB);
println(g.colorMode);
}
}
```
both lines result in a NullPointerException error:
```auto
java.lang.NullPointerException
at mySketch.settings(mySketch.java:58)
at processing.core.PApplet.handleSettings(PApplet.java:978)
at processing.core.PApplet.runSketch(PApplet.java:10897)
at mySketch.main(mySketch.java:26)
```
Help!
Thank you
L.
---
### Author:  [@LuckSmith](https://discourse.processing.org/u/LuckSmith)
#### Post date: [March 11, 2020, 4:15am UTC](https://discourse.processing.org/t/colormode-throws-nullpointerexception-java-eclipse/18581/2 "2020-03-11T04:15:21Z")
What does the `g` stand for? Is it initialized properly?
---
### Author:  [@leo.nerd](https://discourse.processing.org/u/leo.nerd)
#### Post date: [March 11, 2020, 1:09pm UTC](https://discourse.processing.org/t/colormode-throws-nullpointerexception-java-eclipse/18581/3 "2020-03-11T13:09:55Z")
It’s the reference to the PApplet’s default PGraphics if I understand the doc correctly
[https://processing.github.io/processing-javadocs/core/index.html?processing/core/PApplet.html](https://processing.github.io/processing-javadocs/core/index.html?processing/core/PApplet.html)
---
### Author:  [@jeremydouglass](https://discourse.processing.org/u/jeremydouglass)
#### Post date: [March 23, 2020, 2:41am UTC](https://discourse.processing.org/t/colormode-throws-nullpointerexception-java-eclipse/18581/4 "2020-03-23T02:41:49Z")
Were you able to resolve this issue?
I believe that you need to manipulate g in `setup()` – not `settings()`.
Here is the reference for `settings()`:
- [https://processing.org/reference/settings\_.html](https://processing.org/reference/settings_.html)
Define `size()` in settings. Then g is initialized. Then you can configure it in `setup()`.