SJF_Non_Preemptive.zip_it

import java.io.InputStreamReader;import java.io.*; public class SJF_Non_Preemptive { public static void main(String args[]) { int arrival[],burst[],i,n=0; try { System.out.println("Enter no of jobs: "); BufferedReader in=new BufferedReader(new InputStreamReader(System.in)); n=Integer.parseInt(in.readLine()); arrival =new int[n]; burst=new int[n]; for(i=0;i<n;i++) { System.out.println("Enter "+i+" job arrival time: "); arrival[i]=Integer.parseInt(in.readLine()); System.out.println("Enter "+i+" job burst time :"); burst[i]=Integer.parseInt(in.readLine()); if(arrival[i]<0||burst[i]<=0) throw new IOException("e"); } float answer[]=new float[2]; answer=calculate(arrival,burst); System.out.println("Avg wait Time: "+answer[0]); System.out.println("Avg turn around time :"+answer[1]); } catch(Exception e) { System.out.println("Some error occured"); } } static float[] calculate(int arrival[],int burst[]) { int i=0,no_of_jobs=0,nextsmall=0,time=0; float answer[]=new float[2]; answer=new float[2]; answer[0]=0; answer[1]=0; no_of_jobs=arrival.length; for(i=0;i<no_of_jobs;i++) { nextsmall=min(arrival,burst,time); answer[0]+=(float)(time-arrival[nextsmall]); answer[1]+=(float)(time+burst[nextsmall]-arrival[nextsmall]); time+=burst[nextsmall]; } answer[0]/=no_of_jobs; answer[1]/=no_of_jobs; return answer; } static int min(int arrival[],int burst[],int time) { int nextsmall=0,i=0; for(i=0;i<arrival.length;i++) { if(time>arrival[i]) { if(burst[i]<burst[nextsmall]) nextsmall=i; } else break; } return nextsmall; } }