主要方法 导入 java.util.Scanner;
公开课 HW4 {
public static int idScan() {
Scanner x = new Scanner(System.in);
int id = x.nextInt();
return id;
}
public static double salaryScan() {
Scanner y = new Scanner(System.in);
double salary = y.nextInt();
return salary;
}
public static int statusScan() {
Scanner z = new Scanner(System.in);
int status = z.nextInt();
return status;
}
public static void main(String args[]) {
Employee [] employee = new Employee[10];
employee [0] = new Employee(1, 0, 0);
employee [1] = new Employee(1, 0, 0);
employee [2] = new Employee(1, 0, 0);
employee [3] = new Employee(1, 0, 0);
employee [4] = new Employee(1, 0, 0);
employee [5] = new Employee(1, 0, 0);
employee [6] = new Employee(1, 0, 0);
employee [7] = new Employee(1, 0, 0);
employee [8] = new Employee(1, 0, 0);
employee [9] = new Employee(1, 0, 0);
for(Employee e : employee) {
System.out.println("Enter emplpoyee ID of an employee?");
int id = idScan();
System.out.println("Enter salary of the employee?");
double sal = salaryScan();
System.out.println("Is this employee a manager or worker? (Enter 1 for worker and 2 for manager)");
int stat = statusScan();
}
}
}
Employee.java 公开课员工{
private int employeeID;
private double salary;
private int status;
//Constructor
public Employee(int ID, double esalary, int estat) {
employeeID = ID;
esalary = salary;
status = estat;
}
//Getter ID
public int getID() {
return employeeID;
}
//Setter ID
public void setID(int ID) {
employeeID = ID;
}
//Getter Salary
public double getSalary() {
return salary;
}
//Setter Salary
public void setSalary(double esalary) {
salary = esalary;
}
//Getter Status
public double getStatus() {
return status;
}
//Setter Status
public void setStatus(int estat) {
status = estat;
}
}
ManagerEmployee.java 公共类 ManagerEmployee 扩展 Employee {
//Super Constructor
public ManagerEmployee(int ID, double esalary, int estat) {
super(ID, esalary, estat = 1);
}
}
WorkerEmployee.java 公共类 WorkerEmployee 扩展 Employee {
//Super Constructor
public WorkerEmployee(int ID, double esalary, int estat) {
super(ID, esalary, estat = 2);
}
}
我正在做的程序涉及通过扫描仪输入计算两种类型员工（经理/工人）的员工工资。我很困惑的一个部分涉及到我需要通过 for 循环中的扫描仪输入一个数字来指示工人或经理（1 代表工人，2 代表经理）的部分。我通常对需要在哪里建立该规则感到困惑，无论是在 Employee 类中还是在两个子类中。
我认为你正在尝试实现工厂模式。在这种情况下，您可以将
EmployeeabstractEmployeeEmployeeManagerWorkerstatusEmployeeEmployee.java
public abstract class Employee {
private int employeeID;
private double salary;
//Constructor
public Employee(int ID, double esalary) {
employeeID = ID;
salary = esalary;
}
//Getter ID
public int getID() {
return employeeID;
}
//Setter ID
public void setID(int ID) {
employeeID = ID;
}
//Getter Salary
public double getSalary() {
return salary;
}
//Setter Salary
public void setSalary(double esalary) {
salary = esalary;
}
}
ManagerEmployee.java
public class ManagerEmployee extends Employee {
//Super Constructor
public ManagerEmployee(int ID, double esalary) {
super(ID, esalary);
}
}
WorkerEmployee.java
public class WorkerEmployee extends Employee {
//Super Constructor
public WorkerEmployee(int ID, double esalary) {
super(ID, esalary);
}
}
在 main 方法中，您应该在检查用户输入后创建特定员工。
HW4.java
import java.util.Scanner;
public class HW4 {
public static int idScan() {
Scanner x = new Scanner(System.in);
int id = x.nextInt();
return id;
}
public static double salaryScan() {
Scanner y = new Scanner(System.in);
double salary = y.nextInt();
return salary;
}
public static int statusScan() {
Scanner z = new Scanner(System.in);
int status = z.nextInt();
return status;
}
public static void main(String args[]) {
int numOfEmployees = 10;
Employee[] employee = new Employee[numOfEmployees];
for (int i = 0; i < numOfEmployees; i++) {
System.out.println("Enter employee ID of an employee?");
int id = idScan();
System.out.println("Enter salary of the employee?");
double sal = salaryScan();
System.out.println("Is this employee a manager or worker? (Enter 1 for worker and 2 for manager)");
int stat = statusScan();
if (stat == 1) {
employee[i] = new WorkerEmployee(id, sal);
} else if (stat == 2) {
employee[i] = new ManagerEmployee(id, sal);
} else {
// handle error
}
}
}
}
或者，我们可以使用
enumEmployeeEmployee.java
public class Employee {
public enum Status {
MANAGER,
WORKER
}
private int employeeID;
private double salary;
private Status status;
//Constructor
public Employee(int ID, double esalary, Status stat) {
employeeID = ID;
salary = esalary;
status = stat;
}
//Getter ID
public int getID() {
return employeeID;
}
//Setter ID
public void setID(int ID) {
employeeID = ID;
}
//Getter Salary
public double getSalary() {
return salary;
}
//Setter Salary
public void setSalary(double esalary) {
salary = esalary;
}
public Status getStatus() {
return status;
}
public void setStatus(Status status) {
this.status = status;
}
}
你的
main public static void main(String args[]) {
int numOfEmployees = 10;
Employee[] employee = new Employee[numOfEmployees];
for (int i = 0; i < numOfEmployees; i++) {
System.out.println("Enter employee ID of an employee?");
int id = idScan();
System.out.println("Enter salary of the employee?");
double sal = salaryScan();
System.out.println("Is this employee a manager or worker? (Enter 1 for worker and 2 for manager)");
int stat = statusScan();
if (stat == 1) {
employee[i] = new Employee(id, sal, Employee.Status.WORKER);
} else if (stat == 2) {
employee[i] = new Employee(id, sal, Employee.Status.MANAGER);
} else {
// handle error
}
}
}
它与您当前的方法类似，但使用
enumintstatus