Processing Bubble

int numVals = 20;

int[] values = new int[numVals];

void drawVals(int vals,int i) {

    int xPos;
    colorVals(vals, i);
    strokeWeight(width/numVals);
    xPos = i*(width/numVals);
    line(xPos, height, xPos, vals);
}
void colorVals(int vals, int i) {
  int myColor = int(map(vals, 0, height, 85, 0));
  stroke(myColor, 100, 100);
}

void setup() {
  colorMode(HSB, 100);
 background (0);
 frameRate(10);
    for(int i = 0; i < numVals; i++){
   values[i] = int(random(1)*height);
   drawVals(values[i], i);

}


}
int i = 0;
int k = 0;
void draw() {

 background (0);
    if (values[k] < values[k+1]){
    int temp1 = values[k];
    int temp2 = values[k+1];
    values[k] = temp2;
    values [k+1] = temp1;
     }
  k++;
  Boolean truth = false;
 for(int j = 0; j< numVals; j++){
 drawVals(values[j], j);
 }
if( k == numVals-1) {
  k = 0;
}
for (int j = 0; j < numVals - 1; j++){
  if (values[j] < values[j+1]) {

  }
  else {
    truth = false;
    }
}
if (truth == true) {
  for(int i = 0; i < numVals; i++){
   values[i] = int(random(1)*height);
   drawVals(values[i], i);
}
}i