制作大小=10个employee对象的数组[重复]

Question

有谁可以指导我在正确的方向上如何创建一个数组的这些员工？数组设置为常数size=10；下面是我的employee类和我尝试的数组的驱动程序。此外，我知道大部分输出都是空的（员工姓名、id等），因为我已经知道如何编写它，但到目前为止还没有。此外，类名“Employee 1”中的“1”之所以存在，是因为我已经在Employee下保存了另一个文件。你很可能知道，对Java很陌生。谢谢

   class Employee1{

  //variables
 private  String name;
 private double grossPay;

   // This is the constructor of the class Employee
   public Employee1(String EmpName)
   {
      name = EmpName;
   }
    //calculates gross pay and returns 
    public double weeklyPay(double hoursWorked, double hourlyRate)
    { 

     double timeAndHalf = (hourlyRate/2.0)+hourlyRate;
     double dblOvtHours;
     double dblOvtPay;
     double regHours;
     double ovtHours;

    if (hoursWorked <= 40) 
        {
        grossPay = hoursWorked*hourlyRate;
        }

        else if (hoursWorked > 40 && hoursWorked <= 60)
        {
        ovtHours = hoursWorked-40; 
        regHours = 40;
        grossPay = (ovtHours*timeAndHalf) + (regHours*hourlyRate);
        }

        else if (hoursWorked > 60)
        {
         ovtHours = 20; 
         regHours = 40;
         dblOvtHours = hoursWorked - 60;
         dblOvtPay = hourlyRate * 2;
         grossPay = (dblOvtPay*dblOvtHours) + (timeAndHalf * ovtHours) 
     +(regHours * hourlyRate);
        }

           return grossPay; 
   }/////////////////////////////////////////////////



   /* Print the Employee details */
   public String toString()
   {
       return "Employee Report\n" + "Name :" + "\nID number :" 
+ "\nHours Worked" + "\nHourly Rate : " +"\nGross pay: " + grossPay ;
   }
 }

我的驱动程序类：

import java.util.Scanner;
public class EmployeeDriver{

public static void main(String args[]){

   // Invoking methods for each object created
  final double hourlyRatef = 10.25;
  double hoursWorkedf, wPay; 
  double grossPayf = 0.0;

  Scanner input = new Scanner(System.in);

  System.out.print("Please enter the number of hours work: ");

  hoursWorkedf = input.nextDouble();


 //array that does not work //

  Employee1 emp = new Employee1();
  emp[0] = new Employee (); 

  /* invoke weeklyPay() method */
  grossPayf=  emp.weeklyPay(hoursWorkedf,hourlyRatef);

  // invoke printEmployee() method
  System.out.println (emp.toString());

  }
}

Answer 1

您所做的是创建单个对象，而不是数组。数组将如下所示：

final int SIZE = 10;
Employee1[] emp = new Employee1[SIZE];

那么数组的每个成员都必须这样实例化：

emp[0] = new Employee1();