java filereader splitting strings

So Im stuck on a homework assignment, and would only like a little bit of assistance I have 3 text files with multiple student names and their grades in the format:

Student Name

Test 1: 93

---

Student Name

Test 1: 99

---

I need to figure out a way to split the line where the grade is and skip the ------- that splits the students and their grades up. I would then need to parse the test grade into a variable so i could do calculations with it.

 public void openFile() throws IOException {
            //opens text file
            try {
                FileReader inputFile = new FileReader("C:\\Users\\Chris\\IdeaProjects\\workshop3\\src\\filereader\\file1.txt");
                //delimiter from scanner object skips characters passed as parameters
                kb = new Scanner(inputFile).useDelimiter("\n");
                while(kb.hasNext()){
                    line = kb.next();
                    System.out.println(line);
                }


            } catch (IOException e) {
                e.printStackTrace();
            }