for (int i = 0; i < size; i++)
{
        BufferedReader bReader1 = new BufferedReader (new InputStreamReader(System.in));
        BufferedReader bReader2 = new BufferedReader (new InputStreamReader(System.in));
        System.out.println("Enter surname of student ");
        String str = bReader1.readLine();
        System.out.println("Enter group of student ");
        String str2 = bReader2.readLine();  
        arrayOfstudents[i] = new Student(str, str2);
}