Load textfile into array to display depth image

Hey guys,

after watching some tutorials about the kinect I finally managed to get the depth image and transform that depth image into text/numbers. I have a textfile with a poem, just one for now, and I want that it picks random words to create something new. In my code I loaded the file, but instead of words it gives me numbers. Does anyone know what I do wrong?

import org.openkinect.freenect.*;
import org.openkinect.processing.*;

String[] lines;
String[] tokens;
String[] allwords;


PImage depthImg;
int minDepth =  400;
int maxDepth = 900;
int kinectWidth = 640;
int kinectHeight = 480;
//max depth 2048
int cont_length = displayWidth*displayHeight;
float angle;
float reScale;

Kinect kinect;


void setup() {
  lines = loadStrings("rainbow.txt");
  String allwords = join(lines, "\n");
  tokens = splitTokens(allwords, ",; .?1234567890!");
  println(tokens);
  reScale = (float) width / kinectWidth;

  size(1280, 800, P3D);

  PFont f = createFont( "Franklin Gothic Medium", 24 );
  textFont(f);

  kinect = new Kinect(this);
  kinect.initDepth();
  angle = kinect.getTilt();
  depthImg = new PImage(640, 480, ARGB);
  depthImg.filter(BLUR, 1);
  reScale = (float) width / kinectWidth;
}



void draw() {
  background(0);
  int[] rawDepth = kinect.getRawDepth();
  float minThresh = map(mouseX, 0, width, 0, 4500);
  float maxThresh = map(mouseY, 0, width, 0, 4500);


  for (int x=0; x < kinect.width; x+=10) {
    for (int y=0; y < kinect.height; y+=10) {
      int offset = x + y * kinect.width;
      int d = rawDepth[offset];
      float b = brightness(depthImg.pixels[offset]);
      float z = map(b, 0, 255, 250, -250);





      if (d >= minDepth && d <= maxDepth) {


        fill(0, 255, 0);
        pushMatrix();
        textSize(10);
        translate(x, y, z);
        text(int(random(tokens.length)), x, y );

        popMatrix();
      }
    }
  }
  text(minThresh + " " + maxThresh, 10, 64);
  translate(0, (height-kinectHeight*reScale)/2);
  scale(reScale);
  image(depthImg, 0, 0, displayWidth, displayHeight);
  depthImg.updatePixels();




  fill(0);
  text("TILT: " + angle, 10, 20);
}

void mousePressed() {
  saveFrame();
}
void keyPressed() {
  if (key == CODED) {
    if (keyCode == UP) {
      angle++;
    } else if (keyCode == DOWN) {
      angle--;
    }
    angle = constrain(angle, 0, 30);
    kinect.setTilt(angle);
  }
}