(0);
int spread = 50;
int cols, rows;
void setup() {
size(540, 960);
cols = width/spread;
rows = height/spread;
for (int i = 0; i < cols; i++) {
for (int j = 0; i < rows; j++) {
int x = i * spread;
int y = j * spread;
Days.add(new PVector(x, y));
}
}
}
void draw() {
for (int i = Days.size() - 1; i >= 0; i--) {
float x = ((PVector)Days.get(i)).x;
float y = ((PVector)Days.get(i)).y;
fill(255);
stroke(0);
ellipse(x, y, 50, 50);
}
}
```
I am following the example here [http://learningprocessing.com/examples/chp16/example-16-06-Grid](http://learningprocessing.com/examples/chp16/example-16-06-Grid)
and tried to adapt it for my own use, I am guessing something there went wrong.
---
### Author:  [@Chrisir](https://discourse.processing.org/u/Chrisir)
#### Post date: [June 10, 2020, 10:04am UTC](https://discourse.processing.org/t/cannot-find-solution-to-could-not-run-the-sketch-target-vm-failed-to-initialize/21732/2 "2020-06-10T10:04:03Z")
Restart your computer please
Sometimes only a hickup
---
### Author:  [@TheEternalDragon](https://discourse.processing.org/u/TheEternalDragon)
#### Post date: [June 10, 2020, 10:12am UTC](https://discourse.processing.org/t/cannot-find-solution-to-could-not-run-the-sketch-target-vm-failed-to-initialize/21732/3 "2020-06-10T10:12:35Z")
This time I got a new error after running it for a little while
“OutOfMemoryError: You may need to increase the memory settings in Prefrences”
could this be because one of the loops didn’t stop looping? It highlighted line 20
Days.add(new PVector(x, y));
---
### Author:  [@Chrisir](https://discourse.processing.org/u/Chrisir)
#### Post date: [June 10, 2020, 10:23am UTC](https://discourse.processing.org/t/cannot-find-solution-to-could-not-run-the-sketch-target-vm-failed-to-initialize/21732/4 "2020-06-10T10:23:55Z")
> [@TheEternalDragon](#):
>
> ArrayList Days = new ArrayList(0);
Make This `ArrayList Days = new ArrayList();`
Without 0 and with telling the Arraylist the type of its elements
---
### Author:  [@TheEternalDragon](https://discourse.processing.org/u/TheEternalDragon)
#### Post date: [June 10, 2020, 10:26am UTC](https://discourse.processing.org/t/cannot-find-solution-to-could-not-run-the-sketch-target-vm-failed-to-initialize/21732/5 "2020-06-10T10:26:17Z")
Still gives me the same error sadly
---
### Author:  [@Chrisir](https://discourse.processing.org/u/Chrisir)
#### Post date: [June 10, 2020, 10:28am UTC](https://discourse.processing.org/t/cannot-find-solution-to-could-not-run-the-sketch-target-vm-failed-to-initialize/21732/6 "2020-06-10T10:28:43Z")
> [@TheEternalDragon](#):
>
> `for (int j = 0; i < rows`
j \< rows NOT i \< rows
Computers are stupid
---
### Author:  [@TheEternalDragon](https://discourse.processing.org/u/TheEternalDragon)
#### Post date: [June 10, 2020, 10:30am UTC](https://discourse.processing.org/t/cannot-find-solution-to-could-not-run-the-sketch-target-vm-failed-to-initialize/21732/7 "2020-06-10T10:30:33Z")
Jep I messed up making one of the loops, thanks for taking the time to sort that out for me 🙂
---
### Author:  [@Chrisir](https://discourse.processing.org/u/Chrisir)
#### Post date: [June 10, 2020, 10:35am UTC](https://discourse.processing.org/t/cannot-find-solution-to-could-not-run-the-sketch-target-vm-failed-to-initialize/21732/8 "2020-06-10T10:35:25Z")
> [@TheEternalDragon](#):
>
> ```auto
> float x = ((PVector)Days.get(i)).x;
> float y = ((PVector)Days.get(i)).y;
>
> ```
Technically:
`PVector pv = Days.get(i);`
(No need to tell (cast) PVector because you told it the Arraylist now when declaring it)
`ellipse(pv.x,pv.y, ......`
---
### Author:  [@TheEternalDragon](https://discourse.processing.org/u/TheEternalDragon)
#### Post date: [June 10, 2020, 10:39am UTC](https://discourse.processing.org/t/cannot-find-solution-to-could-not-run-the-sketch-target-vm-failed-to-initialize/21732/9 "2020-06-10T10:39:37Z")
O yea true, thanks for the tip 🤔
---
### Author:  [@Chrisir](https://discourse.processing.org/u/Chrisir)
#### Post date: [June 10, 2020, 11:14am UTC](https://discourse.processing.org/t/cannot-find-solution-to-could-not-run-the-sketch-target-vm-failed-to-initialize/21732/10 "2020-06-10T11:14:01Z")
my version with comments
```auto
ArrayList days = new ArrayList(); // lists start with lower case
void setup() {
size(540, 960);
int spread = 50; // make variables local when possible
int cols, rows;
cols = width/spread;
rows = height/spread;
for (int i = 0; i < cols; i++) {
for (int j = 0; j < rows; j++) {
float x = i * spread + spread/2+18; // centering the grid
float y = j * spread + spread/2+5;
days.add(new PVector(x, y));
}
}
}
void draw() {
fill(255);
stroke(0);
for (PVector pv : days) { // short form of for-loop
ellipse(pv.x, pv.y, 50, 50);
}
}
//
```