Vfrdtyky

 public String coursesTaking() {

    Gpa gpa;

    int i = rand.nextInt(12);

    int p = rand.nextInt(letterGrades.length);



    String grade = letterGrades[p];





    String coursesTaken = new String[i];

    String strArray = new String[coursesTaken.length];

    List<Integer> ints = new ArrayList<>();



    if (i==0)

        return " ";





    for(int j=0; j<i; j++) {

        for(int h=0; i<999; i++) {

            ints.add(h);



        }

        Collections.shuffle(ints);

        String q = String.format("%03d", ints.get(h));



        int k = rand.nextInt(22);

        Major m = Major.values()[k];



        String c = m.toString();

        c = c+q;

        String grade = gpa.nextLetterGrade();



        coursesTaken[j] = c+grade;

        strArray[j] = String.valueOf(coursesTaken[j]) + grade;



    }





    String str = Arrays.toString(strArray);

    str = str.substring(0, str.length()-1).replace("[", "");

    str = str.substring(0, str.length()-1).replace("]", ",");





    str = str.substring(-1).replace(",", grade);



    return str;

}





public class Gpa {

    private String letterGrades = {"A+", "A", "A-", "B+", "B", "B-", "C+", "C", "C-", "D+", "D", "D-",

            "F"};



    private java.util.Random rand = new java.util.Random();



    private int h;

    public String nextLetterGrade() {

        int i = rand.nextInt(letterGrades.length);



        String grade = letterGrades[i];



        return "," + grade + ",";

    }

I have two other methods similar to this except that they do not require the additional string of a letter-grade attached. However, when I run my code, I keep getting an error of Indexoutofbounds.

The int current; variable is taken from a private field I have
private int counter;
and the counter is initialized from a previous method of public String coursesToTake()

where a random integer from 0-12 is picked and the random integer sets the value for counter for the same instance object of the class that contain these methods.

When I run this method without the gpa addition, it works, and when i print out the gpa separately it works as well. However, when I try to append them together, I keep running into an error.

The specific line that causes the error is c = c+grade;