Round Robin

package FCFS; import java.util.HashMap; import java.util.Random; public class RoundRobin { int no_of_process; public HashMap burstTime = new HashMap(); public int waitingTime[]; public HashMap priority = new HashMap(); public int data[][]; int OTS; int ATS = 6; public RoundRobin(int process, int ots) { no_of_process = process; data = new int[no_of_process][7]; OTS = ots; waitingTime = new int[no_of_process]; } public void setInput() { long mySeed = 100; Random r = new Random(mySeed); // set burst time for (int j = 1; j <= no_of_process; j++) { int burst_Time = (r.nextInt(32)); if(burst_Time ==0 ) burst_Time = 12; burstTime.put(j, burst_Time); data[j - 1][0] = j; data[j - 1][1] = burst_Time; data[j - 1][2] = OTS; System.out.print(" " + burst_Time); } // Set priority for (int j = 1; j <= no_of_process; j++) { int burst_Time = (r.nextInt(3)); priority.put(j, burst_Time+1); if (burst_Time == 0) { data[j - 1][3] = 1; } else { data[j - 1][3] = 0; } System.out.print(" \n" + (burst_Time + 1)); }

System.out.println("CC"); // calcoulate SC for (int j = 0; j < no_of_process; j++) { if (data[j][1] - data[j][2] <= OTS) { data[j][4] = 1; } else { data[j][4] = 0; } // csc int cc = data[j][2] + data[j][3] + data[j][4]; System.out.println(cc); if (ATS - cc <= OTS) { data[j][5] = cc-OTS; } else { data[j][5] = 0; } //ITS data[j][6] = data[j][2] + data[j][3] + data[j][4] + data[j][5]; } } public void waitingTime(){ int value =0; for (int j = 0; j < no_of_process; j++) { if(data[j][1]>0){ value = data[j][6]; } int temp = data[j][1]; data[j][1] = data[j][1] - data[j][6]; if(data[j][1]<=0){ data[j][1]=0; } for(int i = 0; i < no_of_process; i++){ if(i != j){ if(data[j][1]>0) waitingTime[i] = waitingTime[i] + value; else waitingTime[i] = waitingTime[i] +temp ; } }

} } public void output() { System.out.println("*********************************"); for (int j = 0; j < no_of_process; j++) { System.out.println(data[j][0] + " " + data[j][1] + " " + data[j][2] + " " + data[j][3] + " " + data[j][4] + " " + data[j][5] + " " + data[j][6]); }

} public static void main(String args[]) { RoundRobin obj = new RoundRobin(5, 4); obj.setInput(); obj.output(); } }