# I can't figure out how to make this array compatible with my Button class
**URL:** https://discourse.processing.org/t/i-cant-figure-out-how-to-make-this-array-compatible-with-my-button-class/39403
**Category:** Coding Questions
**Created:** [October 23, 2022, 7:44pm UTC](https://discourse.processing.org/t/i-cant-figure-out-how-to-make-this-array-compatible-with-my-button-class/39403 "2022-10-23T19:44:14Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@darthbray](https://discourse.processing.org/u/darthbray)
#### Post date: [October 23, 2022, 7:44pm UTC](https://discourse.processing.org/t/i-cant-figure-out-how-to-make-this-array-compatible-with-my-button-class/39403/1 "2022-10-23T19:44:14Z")
> please format code with \ button \* [homework policy](https://discourse.processing.org/faq/#homework) \* [asking questions](https://discourse.processing.org/t/2147)
I’m trying to create a randomly generated chord progression program but I haven’t even reached that part yet, I’m stuck on making an array with my button class. The error message is “Type mismatch: cannot convert from sketch\_221023a.Button to int,” which doesn’t make sense because I’ve followed 3 tutorials on how to implement arrays into classes and I don’t see what’s wrong. (please excuse some redundancies and messy attempted solutions, I’ve been trying to bugfix this for the past hour)
```auto
//library imports
import wellen.*;
//tips for using wellen
//Tone.note_on(x,y) | creates a note, x being the pitch and y being the velocity. Pitch is between 0-127. Velocity is 0-100.
//Tone.note_off(x,y) | will turn off matching tones
//Tone.is_playing() ? x : y | detects if a note is playing, will give x if yes or y if no
//Scale.HALF_TONE, this defines the scale for an int, half tone is the scale of all tones
//Scale.get_note(x, y, z) | x is the scale used, y is the root note, z is the steps up from the root note in accordance with the scale
Button resetbutton;
int screenx = 800;
int screeny = 800;
//screenx and y because size doesn't take floats
int sy;
int sx;
int numButton = 1;
int buttonWidth;
int buttonHeight;
String[] text = {"1","2","3","4"};
int[] buttons = new int[50];
int colorR;
int colorG;
int colorB;
Button ba;
void settings() {
sx = screenx;
sy = screeny;
for (int i = 0; i < 4; i ++)
{
buttons[i] = new Button(0+(sx/numbutton), 0+(sy/numbutton), buttonWidth, buttonHeight, text, buttonColor, colorR, colorG, colorB);
numButton = numButton++;
}
size(screenx, screeny);
}
void setup() {
}
void draw() {
ba = new Button(0+(sx/numButton), 0+(sy/numButton), buttonWidth, buttonHeight, "hi", colorR, colorG, colorB);
background(255);
fill(0);
println(screenx+ screeny);
// buttons.update
// buttons.render
}
void mousePressed() {
Tone.note_on(50, 100);
}
```
here is the class code
```auto
class Button
{
PVector Pos = new PVector(0, 0);
float Width = 0;
float Height = 0;
color Color;
String Text;
boolean Pressed = false;
boolean Clicked = false;
// Constructor to create button
Button(int x, int y, int w, int h, String t, int r, int g, int b)
{
Pos.x = x;
Pos.y = y;
Width = w;
Height = h;
Color = color(r, g, b);
Text = t;
}
void update() //must be place in draw in order to work
{
if (mousePressed == true && mouseButton == LEFT && Pressed == false)
{
Pressed = true;
if (mouseX >= Pos.x && mouseX <= Pos.x+Width && mouseY >= Pos.y && mouseY <= Pos.y+Height)
{
Clicked = true;
}
} else {
Clicked = false;
Pressed = false;
}
}
void render() //must be place in draw to render on screen
{
fill(Color);
rect(Pos.x, Pos.y, Width, Height);
fill(0);
textAlign(CENTER, CENTER);
text(Text, Pos.x+(Width/2), Pos.y+(Height/2));
}
boolean IsClicked()//used in if statements to check if button has been clicked
{
return Clicked;
}
}
```
if anybody can help I’d super super appreciate it!
---
### Author:  [@darthbray](https://discourse.processing.org/u/darthbray)
#### Post date: [October 23, 2022, 7:47pm UTC](https://discourse.processing.org/t/i-cant-figure-out-how-to-make-this-array-compatible-with-my-button-class/39403/2 "2022-10-23T19:47:43Z")
a little update I added this code
Button buttons = new Button[50];
it did not change the result
---
### Author:  [@Tiemen](https://discourse.processing.org/u/Tiemen)
#### Post date: [October 23, 2022, 10:43pm UTC](https://discourse.processing.org/t/i-cant-figure-out-how-to-make-this-array-compatible-with-my-button-class/39403/3 "2022-10-23T22:43:16Z")
Hi there Dartbray, you’re close with your little update.
The problem is that you _declare_ it to be of type `Button` (singular), yet you _initialize_ it with `new Button[50]` (array). Simply change it into:
```auto
Button[] buttons = new Button[50];
```