I have a problem with this sketch...I have not idea how make to display each element of a String in each particle...I have almost architect, no informatic, becaus i newby in P5...Somebody have an idea???

//----------------      LIBRERIAS      ---------------------------------------//

import point2line.*;
//-----------------  VARIABLES GLOBALES   ------------------------------------//

PFont fuente;
Particula [] particula = new Particula [6];
Vect2 [] posicion = new Vect2 [6];
//----------------------------------------------------------//

void setup(){
 size(640, 400);
 smooth();
 noStroke();
 fuente = loadFont("Arial-Black-9.vlw");
 textFont(fuente);
 textAlign(CENTER);
 textSize(6);

for(int i = 0; i < posicion.length;i++){
 posicion = new Vect2 (random(width),random(height));
}
 for(int i = 0; i < particula.length; i++){
   particula[i] = new Particula(posicion,new Vect2(2,2));
 }
}
//----------------------------------------------------------//

void draw(){
 fill(0);
 rect(0,0,640,400);
 for(int i = 0; i < particula.length; i++){
   particula[i].render();
   particula[i].actualizar();
   particula[i].reboteBordes();
   particula[i].updateTexto();
 }
}


class Particula extends Texto{
 //--------  VARIABLES PRINCIPALES       -----------------------------------------//

 Vect2 vel;
 float diam;
 //------------    CONSTRUCTOR       -----------------------------------//

 Particula(Vect2 [] pos, Vect2 vel){
   super(pos);
   this.vel = vel;
   diam = 40;
 }  
 //------------    MÉTODOS      -----------------------------------//

 void render(){
   fill(255,100);
   for(int i = 0; i<pos.length; i++){
   ellipse(pos[i].x,pos[i].y,diam,diam);
   }
 }
 //---------------------------------------------------------//

 void actualizar(){
   pos.add(vel);
 }
 void updateTexto(){
   super.updateTexto();
 }
 //---------------------------------------------------------//
 //Método para que las pelotas reboten por la pantalla sin salirse fuera
 void reboteBordes(){
   for(int i = 0; i<pos.length; i++){
   if(pos[i].x < diam/2){                      // Borde vertical izquierdo
     pos[i].x = diam/2;
     vel.x *= -0.8;
   }
   if(pos[i].x > width-diam/2){                  // Borde vertical derecho  
     pos[i].x = width-diam/2;
     vel.x *= -1.2;
   }
   if(pos[i].y < diam/2){                      // Borde horizontal superior
     pos[i].y = diam/2;
     vel.y *= -0.8;
   }
   if(pos[i].y > height-diam/2){                 // Borde horizontal inferior
     pos[i].y = height-diam/2;
     vel.y *= -1.2;
   }
 }
 }
 //------------    FIN DE LA CLASE   -------------------------//
}



class Texto{
 //-------------        VARIABLES PRINCIPALES         ------------------------------------//

 Vect2 [] pos;          // Coordenadas de inserción del Texto
 String[] words = {
   "INCINERACION", "CREMACIÓN", "CIELO", "INFIERNO", "LIMBO", "ALMA  "      };
 //-------------        CONSTRUCTOR        ------------------------------------//

 // Tenemos que meterle al constructor todas estas variables
 Texto(Vect2 [] pos){
   this.pos = pos;
 }
 //-------------        MÉTODOS        ------------------------------------//

 // Método para actualizar el texto
 void updateTexto(){
   fill(255,0,0);
   textFont(fuente);
   textAlign(CENTER,CENTER);
   for(int i =0; i < pos.length; i++){
     for(int j =0; j < words.length; j++){
       text(words[j], pos[i].x, pos[i].y);
     }
   }
 }
 //-------------        FIN DE LA CLASE    ------------------------------------//
}

hi. i couldn't understand what is the problem you are having as well; but once you have mentioned some problem with retrieving words from a String[], the problem is probably on this part of your code

for(int i =0; i < pos.length; i++){
    for(int j =0; j < words.length; j++){
      text(words[j], pos[i].x, pos[i].y);
    }
  }

the way it is written it probably retrieves every word of the words[] for each time it checks the pos[], superimposing the entire words[] at each pos[i].

is text being output at all?
if you could describe what you want to accomplish and what is not happening or what is happening wrong it would be great.