/** A client class which *uses* class Student.
 * Contains example methods for lecture.
 */
class StudentTester {

  /** For lecture -- an example of generalizing repeated (if) statements
   * with a loop.
   */
  static void loopExample() {
    Student aStudent = Student.enrollNewStudent( "Blanche Paige", "4567" );
    
    while (aStudent.creditHours < 120) {
      getInteractiveGrade(aStudent);
    }

    System.out.println( "Total credit hours are " + aStudent.creditHours );
    
  }
  
  /** Record the info for a student taking a class,
   * reading the info from the keyboard interactively.
   * @param stu The student to update with a grade.
   */
  static void getInteractiveGrade( Student stu ) {

    java.util.Scanner skan;
    skan = new java.util.Scanner( System.in );

    char aGrade;
    int numHrs;
    System.out.print( "Please enter a grade (A-F): " );
    aGrade = (skan.next()).charAt(0);
    System.out.print( "Please enter the number of credit hours (e.g. 3): " );
    numHrs = skan.nextInt();
    Student.recordGrade(stu, aGrade, numHrs);
    System.out.println( stu.name + " has a gpa of " + Student.getGPA(stu) );
  }
  
  
  
  
  
}