public class Student implements Payable {


  private String name, school, major;
  private int year;

  private float payRate = 0;
  private double totalHours = 0;
  private double totalSalary = 0;


  public Student(String name, int year, String school, String major) {

    this.name = name;
    this.year = year;
    this.school = school;
    this.major = major;
  }


  public Student(String name, int year, String school) {

    this(name, year, school, "Undecided");
  }


  public int getYear() {

    return year;
  }


  public String getSchoolName() {

    return school;
  }


  public String getMajorName() {

    return major;
  }


  public String toString() {

    return "Student " + name + " in school " + school + ", year " + year + ", with major " + major;
  }


  public String getName() {

    return name;
  }


  public double addHoursWorked(double h) throws Exception {

    if (h == 0) {
      throw new Exception("Cannot add zero (0) hours worked");
    } else if (h < 0) {
      throw new Exception("Cannot add negative (" + h + ") hours worked");
    } else if (payRate <= 0) {
      throw new Exception("Cannot use a zero or negative hourly (" + payRate + ") wage");
    }

    double newSalary = h * payRate;
    totalSalary += newSalary;
    totalHours += h;

    return newSalary;
  }


  public void setPayRate(float dollars) throws Exception {

    if (dollars <= 0) {
      throw new Exception("Cannot set a zero or negative hourly (" + dollars + ") wage");
    }

    this.payRate = dollars;
  }


  public double getSalaryTotal() {

    return totalSalary;
  }


  public void printAccount() {

    System.out.println("  Current hourly wage: $" + payRate + ", Total Salary: $" + totalSalary + ", Total Hours Worked: " + totalHours);
  }
}