Text Rain Processing

Processing Coding Questions
5

same number with same position continuously

String [] data = {"A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", 
  "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"};
Drop[] drops = new Drop[8];

void setup() {
  size(640, 640);
  textAlign(CENTER);
  for (int i = 0; i < drops.length; i++) {
    drops[i] = new Drop();
  }
}

void draw() {
  background(250);
  for (int i = 0; i < drops.length; i++) {
    drops[i].fall();
    drops[i].show();
  }
}

class Drop {
  float x;
  float y;
  float len;
  float yspeed;
  String textHolder = "text";

  Drop() {
    x  = random(40,560);
    y  = random(-300, -50);
    yspeed  = random(1, 5);
    textHolder = str(int(random(32,165)));
  }

  void fall() {
    y = y + yspeed;
    float grav = map(0, 0, 20, 0, 0.2);
    yspeed = yspeed + grav;
    if (y > height) {
      y = random(1, 5);
      yspeed = map(0, 0, 20, 3, 5);
    }
  }

  void show() {
    fill(0);
    textSize(30);
    text(textHolder, x, y, y+len);
  }
}