所以这个程序假设要做的是从键盘上获取id，hours和wage的输入。然后计算加班费，定期工资和总工资。在计算之后，应该计算的id，小时，工资，加班工资，常规工资和总工资必须打印到输出。
此外，员工的财产和行为也应该在员工类中。
但是当我想打印toString方法时，常规工资，加班工资和总工资都是零。知道为什么吗？
主要方法：
public class FinalExam
{ // begin class
public static void main(String[] args)
{ // begin main
// ********** DECLARATION OF CONSTANTS **********
// ********** DECLARATION OF VARIABLES **********
String strout; // output string (toString)
int ID; // employee's id number
int Hours; // employee's hours worked
double Wage; // employee's wage per hour
// ********** CREATE OBJECTS **********
ArrayList<Employee> employeeInfo = new ArrayList(); // list of all employee's properties/objects
// ********** CREATE INPUT STREAMS **********
Scanner keyboard = new Scanner(System.in); // create a Scanner object for keyboard input.
// ********** GET INPUT **********
// get the employee's ID
System.out.println("\nEnter your employee ID.");
ID = keyboard.nextInt(); //get the input and set it to the local varaible ID
Employee employee = new Employee(ID); // pass your id
//System.out.println("Employee ID: " + ID);
// get the employee's hours worked
System.out.println("\nEnter the amount of hours you worked this week.");
Hours = keyboard.nextInt(); //get the input and set it to the local varaible HoursWorked
employee.setHours(Hours); // pass your hours
//System.out.println("Hours worked: " + Hours);
// get the employee's wage
System.out.println("\nEnter your wage.");
Wage = keyboard.nextDouble(); //get the input and set it to the local varaible Wage
employee.setWage(Wage); // pass your wage
//System.out.println("Employee wage: " + Wage);
employeeInfo.add(employee); // add it to the list of course
// ********** OUTPUT **********
System.out.println("\n\n" + employeeInfo.toString());
} // end main
} // end class
然后是Employee类：
public class Employee
{ // begin class
// *********** CLASS VARIABLES **********
// *********** CLASS CONSTANTS **********
private static int MAXHOURS = 40; // maximum hours before overime
private static double OTRATE = 1.5; // overtime is one and a half
// ********** INSTANCE VARIABLES **********
private int ID; // employee's id
private int Hours; // number of hours worked
private double Wage; // pay per hour
private double RegularPay; // regular pay
private int OverHours; // number of overtime hours worked
private double OverPay; // overtime pay
private double GrossPay; // gross pay
// ********** CREATE INPUT STREAMS **********
DecimalFormat df1 = new DecimalFormat ("#####.00"); // to get two decimal places at the end of the numbers
// ********** CONSTRUCTORS ***********
public Employee(int IDnumber)
{ // begin initialized constructor
ID = IDnumber; // set ID to ID number
} // end initialized constructor
// ********** ACCESSORS **********
public int getID()
{ // begin getID
return ID;
} // end getID
public void setWage(double HourlyWage)
{ // begin setWage
Wage = HourlyWage;
} // end setWage
public double getWage()
{ // begin getWage
return Wage;
} // end getWage
public void setHours(int hoursWorked)
{ // begin setHours
Hours = hoursWorked;
} // end setHours
public double getHours()
{ // begin getHours
return Hours;
} // end getHours
// ********** MUTATORS **********
public double getOverPay()
{ // begin getOverPay
if (Hours > MAXHOURS)
{ // begin if hours worked is bigger than MAXHOURS
OverHours = Hours - MAXHOURS;
OverPay = OverHours * Wage * OTRATE;
} // end if hours worked is bigger than MAXHOURS
else
OverPay = 0;
return OverPay;
} // end getOverPay
public double getRegularPay()
{ // begin getRegularPay
return MAXHOURS * Wage;
} // end getRegularPay
public double getGrossPay()
{ // begin getGrossPay
return RegularPay + OverPay;
} // end getGrossPay
public String toString() // overrides the toString method inherited from object
{ // begin toString
String strout = "\nId \t\t Hours \t\t Rate \t\t Regular Pay \t Overtime Pay \t Gross Pay\n";
strout += ID + "\t " + Hours + "\t\t\t $" + (df1.format(Wage)) + "\t\t $" + (df1.format(RegularPay)) + "\t\t\t $" + (df1.format(OverPay)) + "\t\t\t $" + (df1.format(GrossPay));
// df1.format(double) allows me two decimal places
return strout;
} // end toString
} // end class
答案 0 :(得分：1)
您正在使用OvertimePay，GrossPay和RegularPay而不使用其getter，并且这些属性尚未初始化。你应该打电话给吸气鬼。
import java.text.DecimalFormat;
public class Employee
{ // begin class
// *********** CLASS VARIABLES **********
// *********** CLASS CONSTANTS **********
private static int MAXHOURS = 40; // maximum hours before overime
private static double OTRATE = 1.5; // overtime is one and a half
// ********** INSTANCE VARIABLES **********
private int ID; // employee's id
private int Hours; // number of hours worked
private double Wage; // pay per hour
private double RegularPay; // regular pay
private int OverHours; // number of overtime hours worked
private double OverPay; // overtime pay
private double GrossPay; // gross pay
// ********** CREATE INPUT STREAMS **********
DecimalFormat df1 = new DecimalFormat ("#####.00"); // to get two decimal places at the end of the numbers
// ********** CONSTRUCTORS ***********
public Employee(int IDnumber)
{ // begin initialized constructor
ID = IDnumber; // set ID to ID number
} // end initialized constructor
// ********** ACCESSORS **********
public int getID()
{ // begin getID
return ID;
} // end getID
public void setWage(double HourlyWage)
{ // begin setWage
Wage = HourlyWage;
} // end setWage
public double getWage()
{ // begin getWage
return Wage;
} // end getWage
public void setHours(int hoursWorked)
{ // begin setHours
Hours = hoursWorked;
} // end setHours
public double getHours()
{ // begin getHours
return Hours;
} // end getHours
// ********** MUTATORS **********
public double getOverPay()
{ // begin getOverPay
if (Hours > MAXHOURS)
{ // begin if hours worked is bigger than MAXHOURS
OverHours = Hours - MAXHOURS;
OverPay = OverHours * Wage * OTRATE;
} // end if hours worked is bigger than MAXHOURS
else
OverPay = 0;
return OverPay;
} // end getOverPay
public double getRegularPay()
{ // begin getRegularPay
return MAXHOURS * Wage;
} // end getRegularPay
public double getGrossPay()
{ // begin getGrossPay
return getRegularPay() + OverPay;
} // end getGrossPay
public String toString() // overrides the toString method inherited from object
{ // begin toString
String strout = "\nId \t\t Hours \t\t Rate \t\t Regular Pay \t Overtime Pay \t Gross Pay\n";
strout += ID + "\t " + Hours + "\t\t\t $" + (df1.format(Wage)) + "\t\t $" + (df1.format(getRegularPay())) + "\t\t\t $" + (df1.format(getOverPay())) + "\t\t\t $" + (df1.format(getGrossPay()));
// df1.format(double) allows me two decimal places
return strout;
} // end toString
} // end class
答案 1 :(得分：1)
您不打印员工对象的状态，而是列出employeeinfo列表。您需要遍历列表并打印每个员工：
for(Employee e : employeeInfo) {
System.out.println(e.toString());
}
答案 2 :(得分：1)
Atleast给我一个1-up的杀手toString方法：
import java.util.ArrayList;
import java.util.Scanner;
public class FinalExam
{
public static void main(String[] args)
{
FinalExam finalExam = new FinalExam();
finalExam.run();
}
void run()
{
Employee emp = new Employee();
ArrayList<Employee> list = new ArrayList<>();
Scanner scan = new Scanner(System.in);
System.out.print('\n' + "your employee id: ");
emp.setId(scan.nextInt());
System.out.print('\n' + "hours you worked: ");
emp.setHours(scan.nextInt());
System.out.print('\n' + "your wage:");
emp.setWage(scan.nextDouble());
list.add(emp);
scan.close();
System.out.println(emp.toString());
}
class Employee
{
final private int MAXHOURS = 40;
final private double OTRATE = 1.5;
private int id;
private int hours;
private double wage;
void setId(int id) { this.id = id; }
int getId() { return id; }
void setHours(int hours) { this.hours = hours; }
int getHours() { return hours; }
void setWage(double wage) { this.wage = wage; }
double getWage() { return wage; }
@Override
public String toString()
{
double payRegular, payOvertime,
payGross =
(payRegular = hours > MAXHOURS ? (MAXHOURS * wage) : (hours * wage)) +
(payOvertime = hours > MAXHOURS ? (hours - MAXHOURS) * (wage * OTRATE) : 0);
StringBuilder string = new StringBuilder(500);
string.append("\n");
string.append(
String.format("%10s %10s %10s %15s %15s %15s",
"Id", "Hours", "Rate", "Regular Pay", "Overtime Pay", "Gross Pay"));
string.append("\n");
string.append(
String.format("%10s %10s %10s %15s %15s %15s",
id, hours, wage, payRegular, payOvertime, payGross));
string.trimToSize();
return string.toString();
}
}
}