//Priority Class File package com.os.project; import java.util.Scanner; public class Priority { @SuppressWarnings("resource") public static void collectData() { int totalProcess, burstTime[], priority[]; Scanner input, pburstTime, pPriority; System.out.println("Please Enter total Process : "); input = new Scanner(System.in); totalProcess = input.nextInt(); burstTime = new int[totalProcess]; priority = new int[totalProcess]; for(int i = 0; i < totalProcess; i++) { System.out.println("Please Enter burst time of process #"+(i+1)); pburstTime = new Scanner(System.in); burstTime[i] = pburstTime.nextInt(); System.out.println("Please Enter priority of process #"+(i+1)); pPriority = new Scanner(System.in); priority[i] = pPriority.nextInt(); } Priority.calculateResult(totalProcess, burstTime, priority); } public static void calculateResult(int totalProcess, int[] burstTime, int[] priority) { int[] turnAroundTime, waitingTime; turnAroundTime = new int[totalProcess]; waitingTime = new int[totalProcess]; int averageWT = 0, averageTAT = 0; insertionSort(totalProcess, burstTime, priority); waitingTime[0] = 0; for(int m = 1; m < totalProcess; m++) { waitingTime[m] = burstTime[m - 1] + waitingTime[m - 1]; } for(int i = 0; i < totalProcess; i++) { turnAroundTime[i] = waitingTime[i] + burstTime[i]; } System.out.println("No of Process\t|\t" + "Burst Time\t\t|\t" + "Priority\t\t|\t" + "Waiting Time\t\t|\t\t" + "Turn Around Time"); for(int i = 0; i < totalProcess; i++) { averageWT += waitingTime[i]; averageTAT += turnAroundTime[i]; System.out.println((i+1)+ "\t\t|\t\t" + burstTime[i] + "\t\t|\t\t" + priority[i] + "\t\t|\t\t" + waitingTime[i] + "\t\t|\t\t" + turnAroundTime[i]); } System.out.println("The Average Waiting Time of All Process : "+(averageWT/totalProcess)); System.out.println("The Average Turn Around Time of All Process : "+(averageTAT/totalProcess)); } public static void insertionSort(int totalProcess, int[] burstTime, int[] priority) { int j, i, pTemp, pburst; for(i = 1; i < totalProcess; i++) { pTemp = priority[i]; pburst = burstTime[i]; j = i - 1; while(j >= 0 && priority[j] > pTemp) { priority[j+1] = priority[j]; burstTime[j+1] = burstTime[j]; j--; } priority[j+1] = pTemp; burstTime[j+1] = pburst; } } } //Main Class File package com.os.project; import java.util.Scanner; public class Main { public static void main(String args[]) { Priority.collectData(); } }
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Tuesday, 29 May 2018
Priority Scheduling Algorithm in Java
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