// Example 38 from page 29 of Java Precisely second edition (The MIT Press 2005)
// Author: Peter Sestoft (sestoft@itu.dk)


class Example38 {
  static double[] ps = new double[6];

  static {                              // static initializer block
    double sum = 0;
    for (int i=0; i<ps.length; i++)     // fill with increasing random numbers
      ps[i] = sum += Math.random();     
    for (int i=0; i<ps.length; i++)     // scale so last ps element is 1.0
      ps[i] /= sum;
  }

  static int roll() {
    double p = Math.random();
    int i = 0;
    while (p > ps[i])
      i++;
    return i+1;
  }

  public static void main(String[] args) {
    for (int i=0; i<10; i++)
      System.out.println(roll());
  }
}