public class ProduktSummeDouble {
  public static void main (String[] args) {
    double[] x = new double[6];
    double[] y = new double[6];
    double p, s;
    x[0] = 1e16; 
    x[1] = 0.1223; 
    x[2] = 1e14;  
    x[3] = 1e15; 
    x[4] = 3.0;    
    x[5] = -1e12;
    y[0] = 1e20; 
    y[1] = 2.0;    
    y[2] = -1e22;
    y[3] = 1e9; 
    y[4] = 0.2111; 
    y[5] = 1e12;
    s = 0;
    System.out.println("s = " + s);
    for (int i=0; i<6; i++) {
      p = x[i]*y[i];
      System.out.println("  + " + p + " liefert");
      s = s + p;
      System.out.println("s = " + s);
    }
  }
}