Exception in thread "main" java.lang.NumberFormatException: For input string: ""
    at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
    at java.lang.Integer.parseInt(Integer.java:592)
    at java.lang.Integer.parseInt(Integer.java:615)
    at Simulation.getJob(Simulation.java:12)
    at Simulation.main(Simulation.java:58)

//all of this is under main.
    m = Integer.parseInt( in.nextLine() );
    //make sure the file has stuff in it
    while(in.hasNext()){
        in.useDelimiter("n");
        //Create an array of type job to keep track of our number of jobs.
        Job[] jobs = new Job[m];

        line = in.next() + " ";
        token = line.split("\s+");

        for(int i = 1; i < m; i++){
        jobs[i] = getJob(in);
        System.out.println(jobs[i]);
        }
    }

//getJob function is here:
public static Job getJob(Scanner in){
    String[] s = in.nextLine().split(" ");
    int a = Integer.parseInt(s[0]);
    int d = Integer.parseInt(s[1]);
    return new Job(a,d);
    }