Hello, everybody. I'm working on only my second program using Processing, and I'm having a problem. Here's an example of what I'm doing:

"int young = 0;
...

public void draw() {
text("young = " + young, 50, 50);
...}"

When I try to run this, it prints "young = " okay, but it doesn't erase the variable 'young' after each refresh; it writes the new number on top of the old one, making everything illegible. Did I miss something here?



Whole program:

import processing.core.*;

public class project2 extends PApplet {

int counter = 0;
//counter for current generation

int refresh = 6;
//frame rate

//resources

int fuel = 10000;
//nonrenewable

int water = 50000;

int animals = 500;

int plants = 5000;

//people

int young = 0;

int adults = 2;

int dead = 0;

//variable transitions

int birthCount = 2;

int animalCount = 2;

//create font

PFont myFont;


public void setup() {


//create window


frameRate(refresh);


size(1000,1000);


//setup font


myFont = createFont("verdana", 16);


textFont(myFont);


//load images

}


public void draw() {


//print variables


text("young = " + young, 50, 50);


text("adults = " + adults, 50, 100);


text("dead = " + dead, 50, 150);


text("fuel = " + fuel, 50, 200);


text("water = " + water, 50, 250);


text("animals = " + animals, 50, 300);


text("plants = " + plants, 50, 350);


if(counter%birthCount == 0) {
//trigger "birth" transition



adults--;



young = young + 2;


}


if(counter%2 == 0) {
//trigger "renew animals" transition



water--;



plants--;



animals--;



animals = animals + 2;


}


if(counter%animalCount == 0) {


//trigger "renew plants" and "growth" transitions



//renew plants



water--;



plants--;



plants = plants + 2;



//growth



fuel--;



water--;



animals--;



plants--;



young--;



adults++;


}


if(counter%3 == 0) {


//trigger "death" transition



adults--;



dead++;


}


if(counter%4 == 0) {


//trigger "renew water" transition



water--;



water = water + 4;


}


//check mouse position


counter++;

}
}