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java
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package OSproject; import java.text.DecimalFormat; import java.util.Scanner; public class sample { public static void main(String[] args) { Scanner sc = new Scanner(System.in); DecimalFormat format = new DecimalFormat ("##.##"); System.out.println("Enter the number of processes: "); int job = sc.nextInt(); int Burst[] = new int[job]; for (int i = 0; i < job; i++) { System.out.println("Enter the burst time for " + (i+1) + ": "); Burst[i] = sc.nextInt(); } int Priority[] = new int[job]; for (int i = 0; i < job; i++) { System.out.println("Enter the priority number for process " + (i+1) + ": "); Priority[i] = sc.nextInt(); } int P1[] = new int[job]; for ( int i = 0; i < job; i++) { P1[i] = Priority[i]; } for (int i = 0; i < job; i++) { for (int j = 0; j < job-1; j++) { if(Priority[j] > Priority[j+1]) { int temp = Priority[j]; Priority[j] = Priority[j+1]; Priority[j+1] = temp; } } } int wait = 0; int turnTable = 0; int waitingTime[] = new int[job]; int turnaround[] = new int[job]; float totalWait = 0; float totalTurn = 0; int k = 0; int l = 0; System.out.format("%63s","===============================================================================\n"); System.out.format("%15s %15s %15s %18s", "Process", "Burst Time", "Waiting Time", "Turnaround Time\n"); System.out.format("%63s","===============================================================================\n"); for (int i = 0; i < job; i++) { for (int j = 0; j < job; j++) { if (Priority[i] == P1[j]) { turnTable += Burst[j]; System.out.format("%12d %13d %14d %15d\n", (j+1), Burst[j], wait, turnTable); waitingTime[k] = wait; totalWait += wait; wait += Burst[j]; turnaround[k] = waitingTime[k] + Burst[j]; totalTurn += turnaround[l]; } } } System.out.println("\n\t\t\t\t\tThe Average Waiting Time is: " + format.format(totalWait/job)); System.out.println("\n\t\t\t\t\tThe Average Turnaround Time is: " + format.format(totalTurn/job)); System.out.format("%63s","===============================================================================\n"); } }
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