public class EconomicModel {

    public static void main(String[] args) {

        int[] StarTime = new int[20];
        int[] duration = new int[40];
        int[] TotalDuration = new int[40];
        int[] EndTime = new int[StarTime.length];
        int[] relinqtime = new int[20];

        int[] ResAllocRAM = {101,9,56,89,43,30,8,60,13,41,60, 20, 32,71,76,7,31,46,30,99 };


        StarTime[0] = 0;

        ExponentialDistribution exp = new ExponentialDistribution(4.0);
        for(int j = 1; j < 20; j++){
            StarTime[j] = (int)exp.sample() + 1+StarTime[j-1];

        }
            for(int k = 0; k < 20;k ++){
                duration[k] = 20 + (int)(Math.random() * ((120 - 10) + 1));

            }


            for(int k = 0; k < 20; k++){
                EndTime[k] = StarTime[k] + duration[k];

            }
            Random r = new Random();
            for (int i=0; i<20; i++){
                relinqtime[i] = r.nextInt((EndTime[i] - StarTime[i])+ StarTime[i] ) + StarTime[i];

            }
            for ( int j = 0; j<20; j++)
            for(int k =  StarTime[j]; k <= relinqtime[j]; k++){
                 TotalDuration[k]+= ResReqRAM[j];

            }
            }
            }