Robust/src/Benchmarks/PERT/Java/Stage.java

   1 import java.util.Random;
   2
   3 public class Stage {
   4     int ID;
   5
   6     int[] samplings;
   7     int optime;
   8     int nortime;
   9     int petime;
  10     int time;
  11     double variance2;
  12
  13     public Stage(int id) {
  14         this.ID = id;
  15
  16         this.samplings = new int[10];
  17         for(int i = 0; i < this.samplings.length; ++i) {
  18             this.samplings[i] = 0;
  19         }
  20
  21         this.optime = 0;
  22         this.nortime = 0;
  23         this.petime = 0;
  24         this.time = 0;
  25         this.variance2 = 0;
  26     }
  27
  28     public void sampling() {
  29         /*if(ID % 2 == 1) {
  30                         int tmp = samplings[samplings.length];
  31                 }*/
  32
  33         Random r = new Random(ID);
  34         int tint = 0;
  35         for(int i = 0; i < this.samplings.length; ++i) {
  36             do {
  37                 tint = r.nextInt()%50;
  38             } while(tint <= 0);
  39             this.samplings[i] = tint;
  40             //System./*out.print*/printString(tint + "; ");
  41         }
  42         //int tint = ID * 3;
  43         //for(int i = 0; i < this.samplings.length; ++i) {
  44         //      this.samplings[i] = tint + i;
  45                 //System.printString(tint + "; ");
  46         //}
  47         //System.printString("\n");//out.println();
  48     }
  49
  50     public void estimate() {
  51         /*if(ID % 2 == 1) {
  52                         int tmp = samplings[samplings.length];
  53                 }*/
  54
  55         int highest = this.samplings[0];
  56         int lowest = this.samplings[0];
  57         int sum = this.samplings[0];
  58         for(int i = 1; i < this.samplings.length; ++i) {
  59             int temp = this.samplings[i];
  60             if(temp > highest) {
  61                 highest = temp;
  62             } else if(temp < lowest) {
  63                 lowest = temp;
  64             }
  65             sum += temp;
  66         }
  67         sum  = sum - highest - lowest;
  68         int ordinary = sum / (this.samplings.length - 2);
  69         this.optime = lowest;;
  70         this.petime = highest;
  71         this.nortime = ordinary;
  72         this.time = (this.optime + 4 * this.nortime + this.petime) / 6;
  73         this.variance2 = (double)(this.optime - this.petime) * (double)(this.optime - this.petime) / 36.0;
  74         //System.out.println("Op time: " + this.optime + "; Nor time: " + this.nortime + "; Pe time: " + this.petime + "; variance2: " + (int)(this.variance2*100) + "(/100)");
  75     }
  76
  77     public int getAntTime() {
  78         return this.time;
  79     }
  80
  81     public double getAntVariance2() {
  82         return this.variance2;
  83     }
  84
  85 }