java薪资系统

Question

我正在实现一个薪资系统，在这个系统中，我需要实现一个PayrollSystem类，以便将一个雇员添加到员工的ArrayList中，并为这些员工中的每一个创建检查。我编写了Employee和Paycheck类，但是PayrollSystem类有问题。

如何创建addEmployee方法？我是将Employee对象与该员工的信息一起传递给它，还是有其他方法？

雇员：

package payrollSystem;

public class Employee {
    private String firstName;
    private String lastName;
    private int ID;
    private double hourlyWage;
    private double hoursWorked;

    public Employee(String first, String last, int id, double wage, double hours) {
        firstName = first;
        lastName = last;
        ID = id;
        hourlyWage = wage;
        hoursWorked = hours;
    }

    public void setFirstName(String first) {
        this.firstName = first;
    }

    public String getFirstName() {
        return firstName;
    }

    public void setLastName(String last) {
        this.lastName = last;
    }

    public String getLastName() {
        return lastName;
    }

    public void setID(int ID) {
        this.ID = ID;
    }

    public int getID() {
        return ID;
    }

    public void setHourlyWage(double hourlyWage) {
        this.hourlyWage = hourlyWage;
    }

    public double getHourlyWage() {
        return hourlyWage;
    }

    public void setHoursWorked(double hoursWorked) {
        this.hoursWorked = hoursWorked;
    }

    public double getHoursWorked() {
        return hoursWorked;
    }

    public double calcPay(double wage, double hours) {
        wage = getHourlyWage();
        hours = getHoursWorked();

        return wage * hours;
     }
}

PayCheck:

package payrollSystem;

public class PayCheck {
    private String firstName;
    private String lastName;
    private int ID;
    private double netAmount;

    public PayCheck(String first, String last, int id, double wage, double hours) {
        firstName = first;
        lastName = last;
        ID = id;
        netAmount = wage * hours;
    }

    public String toString() {
        return "Paycheck issued for " + netAmount + "to " + firstName + ", "+ lastName + ", employee ID " + ID;
    }
}

PayrollSystem:

package payrollSystem;

import java.util.List;
import java.util.ArrayList;

public class PayrollSystem {
     public List<Employee> employees = new ArrayList<Employee>();
     public String companyName;

     PayrollSystem(String company) {
         companyName = company;
     }

     void addEmployee(Employee a) {
         employees.add(a);
     }

     void getHoursWorked(double hrs) {
         this.a.getHoursWorked();
     }

     void issueCheck() {
         double checkAmount = this.a.calcPay(a.getHoursWorked(), a.getHourlyWage());

         PayCheck check = new PayCheck(a.getFirstName(), a.getLastName(),  a.getID(), a.getHoursWorked(), a.getHourlyWage());

         check.toString();
     }
}

Answer 1

您可以创建一个addEmployee()方法。只要您在某个地方创建了员工，然后将其传递给您的payRoll类。

假设您有一个List的员工：

public void addEmployee(Employee employee){
    employees.add(employee);
}

在您的main中，您可以直接离开(假设myEmployee是一个Employee对象)：

PayrollSystem payrollSystem = new PayRollSystem();
payrollSystem.addEmployee(new Employee("John", "Smith", 1, wage, hours)); // Way 1
payrollSystem.addEmployee(myEmployee); // Way 2

Employee对象将包含员工的所有信息。所以当那个对象被传入时，所有的信息都会随之而来。这允许您从payrollSystem中获取所有员工，或者使用内部方法对他们执行操作。