Simple random string question

changed this



int x;
int y;

String wordMy="";

int i=0;

void setup() {
  size(500, 500);
}

void draw() {


  if ( (i<wordMy.length())) {
    //!!!!


    x=int(random(25, 450));
    y=int(random(25, 450));
    textSize(25);
    fill(0);

    if (wordMy.length() > 0) { //!!!
      text(wordMy.charAt(i), 
        x, y);
    }


    i++;
  }
}

void keyPressed() {
  wordMy+=key;
}