Exception in thread "main" java.lang.NegativeArraySizeException at Main.main(Main.java:21)
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.StringTokenizer;
public class Main
{
public static void main(String[] args) {
String line ;
String startTime ;
String endTime;
String name ;
int n=0;
int[] sumstrttime = new int[n];
int[] sumendtime = new int[n-1];
int[] sum = new int[n];
int time ;
int hh;
int mm;
int endhh;
int endmm;
int meet ;
StringTokenizer tokens = null;
String fileName="C";
try {
BufferedReader input = new BufferedReader(new FileReader(fileName) );
while((line = input.readLine())!=null){
System.out.println( line );
StringTokenizer st = new StringTokenizer( line ," ");
int s = Integer.parseInt(System.console().readLine());
if (n>9){
startTime = tokens.nextToken();
StringTokenizer start = new StringTokenizer(startTime ,":");
hh=Integer.parseInt(start.nextToken());
hh=hh*60;
mm=Integer.parseInt(start.nextToken());
System.out.println(startTime);
endTime = tokens.nextToken();
StringTokenizer end = new StringTokenizer(startTime ,":");
endhh=Integer.parseInt(end.nextToken());
endhh=endhh*60;
endmm=Integer.parseInt(end.nextToken());
name = tokens.nextToken();
for(int i = 0; i < n; i++){
sumstrttime [i] = hh+mm;
sumendtime[i] = endhh+endmm;
sum[i]=sumendtime[i] - sumstrttime[i+1];
System.out.print("time " + sum[i]);
}
}
}
}
catch(IOException e ){
System.out.print("not found ");
}
}
}