PApplet call methods


I try to install the PApplet in eclypse for make bigger and cleaner project, the installation work : i can launch a window and add content. But, i want create external class who call methods like rect(float, float, float, float) or other.

My first tab :

package fr.hyper_mïko.gereform;

import processing.core.PApplet;

public class GereForm extends PApplet{
    protected byte nPage;
    public static void main(String[] args) {
    public void settings() {
    public void setup() {
    public void draw() {
        rect(mouseX, mouseY, 10, 10); //It's working

My second tab :

package fr.hyper_mïko.gereform.util.IO;

import processing.core.*;

public class Button extends Inputs{
    public Object interact() {
        if(PApplet.mouseX > this.posX) //Here i tried to read mouseX like in processing ide
        return null;
    public void process() {}
    public void display() {
        PApplet.rect(posX, posY, sizeX, sizeY); //Here i tried to call rect() like in processing ide

Of course i have the abstract superclass Inputs with posX, posY, sizeX, sizeY

on PApplet.mouseX and PApplet.rect() in have the error "Cannot make a static reference to the non-static field PApplet.mouseX" and "Cannot make a static reference to the non-static method rect(float, float, float, float) from the type PApplet"

I understand the error but i don't know how to fix it.

Someone call tell me what is wrong with my code (or with me) ?



  • edited October 2017

    Either your Button class or its parent Inputs need to request the PApplet instance reference from your GereForm class. :-B

    Best place to request that PApplet reference is straight from your class' constructor: *-:)

    public class Button extends Inputs {
      protected final PApplet p;
      public Button(final PApplet pa) {
        p = pa;
      public void display() {
        p.rect(posX, posY, sizeX, sizeY);
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