import java.io.*;

import java.util.ArrayList;

public class SRTF2 {

public static void main(String args[]) throws IOException

{

BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

int int for

x=100,c=0 ,stop=000,n=0; pid [] = new int[x];

(int j = 0; j < x; j++) { System.out.print("Please enter PID: "); pid[j] = Integer.parseInt(br.readLine()); if (pid[j] == stop) {

break; }

c++; }

n=c;

//System.out.println("Please enter PID: " +n );

int proc[][] = new int[n +1][4];//proc[][0] is the AT array,[][1] - RT,[][2] - WT,[][3] - TAT

for (int i = 1; i <= n; i++) {

System.out.println("");

System.out.print("Please enter the Arrival Time for Process " + i + ": "); proc[i][0] = Integer.parseInt(br.readLine());

System.out.print("Please enter the Burst Time for Process " + i + ": "); proc[i][1] = Integer.parseInt(br.readLine());

}

System.out.println();

System.out.println("The Gantt chart:");

//Calculation of Total Time and Initialization of Time Chart array int total_time = 0;

for(int i = 1; i <= n; i++)

{

total_time += proc[i][1]; }

int time_chart[] = new int[total_time];

for(int i = 0; i < total_time; i++)

{

} }

//Assign selected process to current time in the Chart

time_chart[i] = sel_proc;

//Selection of shortest process which has arrived

int sel_proc = 0;

int min = 99999;

for(int j = 1; j <= n; j++) {

if(proc[j][0] <= i)//Condition to check if Process has arrived {

if(proc[j][1] < min && proc[j][1] != 0) {

min = proc[j][1];

sel_proc = j;

}

//Decrement Remaining Time of selected process by 1 since it has been assigned the CPU for 1 unit of time

proc[sel_proc][1]--;

//WT and TAT Calculation

for(int j = 1; j <= n; j++)

{

if(proc[j][0] <= i) {

if(proc[j][1] != 0) {

proc[j][3]++;//If process has arrived and it has not already its TT is incremented by 1

if(j != sel_proc)//If the process has not been currently assigned the its WT is incremented by 1

proc[j][2]++;

}

else if(j == sel_proc)//This is a special case in which the process has been assigned CPU and has completed its execution

proc[j][3]++;

} }

//Printing the Time Chart

if(i != 0) {

if(sel_proc != time_chart[i - 1])

//If the CPU has been assigned to a different Process we need to print the current value of time and the name of

//the new Process

{

System.out.print("--" + i + "--P" + sel_proc);

} }

else//If the current time is 0 i.e the printing has just started we need to print the name of the First selected Process

System.out.print(i + "--P" + sel_proc);

if(i == total_time - 1)//All the process names have been printed now we have to

print the time at which execution ends

completed execution CPU and has arrived

System.out.print("--" + (i + 1)); System.out.println();

} System.out.println();

//Printing the WT and TAT for each Process

System.out.println("P\t WT \t TAT "); for(int i = 1; i <= n; i++)

{

System.out.printf("%d\t%2dms\t%2dms",i,proc[i][2],proc[i][3]);

System.out.println(); }

System.out.println();

//Printing the average

float WT = 0,TAT = 0; for(int i = 1; i <= n; {

WT += proc[i][2];

TAT += proc[i][3]; }

WT & TAT

i++)

WT /= n;

TAT /= n;

System.out.println("The Average WT is: " + WT + "ms"); System.out.println("The Average TAT is: " + TAT + "ms");

} }

can someone complete the code to calculate the respond time and average of response time?

"operating system course". SRTF scheduling ?