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package PrioritySchedule;

import java.text.DecimalFormat;
import java.util.Scanner;

public class priosched {
		
	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 waitingTime[] = new int[job];
		int turnaround[] = new int[job];
 		float totalWait = 0;
 		float totalTurn = 0;
		int k = 0;
		int l = 0;
		turnaround[0] = Burst [0];
		
		
		System.out.println("\n\t\t\t\t\t===============================================================================\t\t\t\t");
		System.out.println("\t\t\t\t\tProcess\t\tBurst Time\t\tWaiting Time\t\tTurnaround Time");
		System.out.println("\t\t\t\t\t===============================================================================\t\t\t\t\n");
		
		for (int i = 0; i < job; i++) {
			
			for (int j = 0; j < job; j++) {
				
				if (Priority[i] == P1[j]) {
					
					System.out.println("\t\t\t\t\tP" + (j+1) + "\t\t" + Burst[j] + "\t\t\t" + wait + "\t\t\t" + turnaround[j]);
					waitingTime[k] = wait;
					totalWait += wait;
					wait += Burst[j];
					turnaround[l] = waitingTime[k] + Burst[k];
					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.println("\n\t\t\t\t\t===============================================================================\t\t\t\t");
		System.out.println("\t\t\t\t\t===============================================================================\t\t\t\t\n");
	}

}