Java 员工工资计算 任务描述

我有一个问题陈述： 使用以下私有成员变量创建类Employee

int employeeId
String employeeName
double salary
double netSalary

在Employee类中包含适当的getter和setters方法。在Employee类中编写以下方法： public void calculatenetralary（int pfpercentage）-此方法应将PF percentage作为参数。从工资中扣除PF金额并设置netSalary

创建一个Main类，该类具有调用该方法以获取输入的Main方法，并打印细节，如示例所示

还可以编写一个方法：

public static Employee getEmployeeDetails（）-获取员工详细信息-id、姓名和薪资，并返回员工对象

public static int getPFPercentage（）-获取PF百分比并返回相同的

在main方法中，调用上述两个方法，然后在Employee类中调用calculateNetSalary方法并打印输出，如下所示

示例输入1：

输入Id: 101 输入名称： 维韦克 输入工资： 20000 输入PF百分比： 七,

样本输出1：

身份证号码：101

姓名：维韦克

工资：20000.0

净工资：18600.0

---

我所做的 我在Employee.java中编写了getter&setters方法和calculateNetSalary（）方法。我陷入了在Main.java中写什么和如何写的困境

Employee.java

public class Employee{

    private int employeeId;
    private String employeeName;
    private double salary;
    private double netSalary;

    //setters
    public void setEmployeeId(int employeeId){
        this.employeeId=employeeId;
    }
    public void setEmployeeName(String employeeName){
        this.employeeName=employeeName;
    }
    public void setSalary(double salary){
        this.salary=salary;
    }
    public void netSalary(double netSalary){
        this.netSalary=netSalary;
    }

    //getters
    public int getEmployeeId(){
        return employeeId;
    }
    public String getEmployeeName(){
        return employeeName;
    }
    public double getSalary(){
        return salary;
    }
    public double getNetSalary(){
        return netSalary;
    }

    public void calculateNetSalary(int pfpercentage){

        pfamount=salary*pfpercentage;
        netSalary=salary-pfamount;
    }
}

Main.java

import java.util.Scanner;
public class Main{
    public staic void main(String[] args){
        Scanner sc = new Scanner(System.in);
        Employee emp = new Employee();

        System.out.println("Enter Id:"+setEmployeeId(sc.nextInt()))
        System.out.println("Enter Name:"+setEmployeeName(sc.next()));
        System.out.println("Enter salary:"+setSalary(sc.nextDouble()));

        System.out.println("Enter PF percentage:");
        double pfpercentage = sc.nextDouble();

        public static Employee getEmployeeDetails(){


        }

        public static int getPFPercentage(){

        }

    }
}

---

我无法完成Main.java，因为我不确定写什么和如何写。

这应该是您的代码：

 public void main(String[] args){
        Scanner sc = new Scanner(System.in);
        Employee emp = new Employee();

        emp.setEmployeeId(sc.nextInt());
        emp.setEmployeeName(sc.next()) ;
        emp.setSalary(sc.nextDouble());

        System.out.println("Enter PF percentage:");
        double pfpercentage = sc.nextDouble();
        emp.calculateNetSalary(pfpercentage);
        System.out.println("Salay is " + emp.getNetSalary());
    }

另外，请注意，您尚未定义pfamount的类型：

 public void calculateNetSalary(double pfpercentage){

        double pfamount=salary*pfpercentage;
        netSalary=salary-pfamount;
    }

不能在main（）方法内定义其他方法。

---

您可以在其中调用其他方法（根据您的喜好）。

您的代码中有几个问题。首先看Employee.java，有两个问题：

设置

netSalary

的方法声明为

public void netSalary（double netSalary）

，而应该是

public void SetNetSalary（double netSalary）

public void calculate（int pfpercentage）

中的计算看起来不正确。如果你想通过一个双精度测试（即2代表2%），那么你需要将其除以100，将数字转换为百分比

如果要使用变量，则需要声明变量（namelty

pfamount

需要声明为

double

，然后才能为其赋值）

您可能需要一个

公共字符串toString（）

方法来打印employee对象

所以你会得到这样的结果：

public class Employee{

  private int employeeId;
  private String employeeName;
  private double salary;
  private double netSalary;

//setters
  public void setEmployeeId(int employeeId){
      this.employeeId=employeeId;
  }

  public void setEmployeeName(String employeeName){
      this.employeeName=employeeName;
  }

  public void setSalary(double salary){
      this.salary=salary;
  }

  public void setNetSalary(double netSalary){
      this.netSalary=netSalary;
  }

  //getters
  public int getEmployeeId(){
      return employeeId;
  }

  public String getEmployeeName(){
      return employeeName;
  }

  public double getSalary(){
      return salary;
  }

  public double getNetSalary(){
      return netSalary;
  }

  public void calculateNetSalary(double pfpercentage) {
      double pfamount = salary * (pfpercentage / 100);
      netSalary = salary - pfamount;
  }

  @Override
  public String toString() {
      String output = new StringBuffer()
              .append("Id: ").append(employeeId)
              .append(System.lineSeparator()).append("Name: ").append(employeeName)
              .append(System.lineSeparator()).append("Salary: ").append(salary)
              .append(System.lineSeparator()).append("Net Salary: ").append(netSalary).toString();
      return output;
  }
}

import java.util.Scanner;

public class EmployeeSalaryCalculation {

private Scanner scanner;

  public EmployeeSalaryCalculation() {
    scanner = new Scanner(System.in);
  }

  public Employee getEmployeeDetails() {
      Employee employee = new Employee();
      System.out.println("Enter Id:");
      employee.setEmployeeId(scanner.nextInt());
      System.out.println("Enter Name:");
      employee.setEmployeeName(scanner.next());
      System.out.println("Enter salary:");
      employee.setSalary(scanner.nextDouble());
      return employee;
  }

  public double getPFPercentage(){
      System.out.println("Enter PF percentage:");
      return scanner.nextDouble();
  }

  public static void main(String[] args) {
      EmployeeSalaryCalculation employeeSalaryCalculation = new EmployeeSalaryCalculation();
      Employee employee = employeeSalaryCalculation.getEmployeeDetails();
      employee.calculateNetSalary(employeeSalaryCalculation.getPFPercentage());
      System.out.println(employee.toString());
  }
}

您的Main.java也有几个问题：

不能在方法中声明方法

这不是实现

java.util.Scanner

的正确方法

System.out.println（“输入Id:+setEmployeeId（sc.nextInt（）））

。基本上，扫描仪部分需要与

系统.out

分离（请记住

系统.out

的唯一作用是打印文本，它不等待扫描仪的输入）

如果我正确理解了您的问题，那么您需要将一些逻辑从main方法中移到

getEmployeeDetails（）

和

getPFPercentage（）

所以你会得到这样的结果：

public class Employee{

  private int employeeId;
  private String employeeName;
  private double salary;
  private double netSalary;

//setters
  public void setEmployeeId(int employeeId){
      this.employeeId=employeeId;
  }

  public void setEmployeeName(String employeeName){
      this.employeeName=employeeName;
  }

  public void setSalary(double salary){
      this.salary=salary;
  }

  public void setNetSalary(double netSalary){
      this.netSalary=netSalary;
  }

  //getters
  public int getEmployeeId(){
      return employeeId;
  }

  public String getEmployeeName(){
      return employeeName;
  }

  public double getSalary(){
      return salary;
  }

  public double getNetSalary(){
      return netSalary;
  }

  public void calculateNetSalary(double pfpercentage) {
      double pfamount = salary * (pfpercentage / 100);
      netSalary = salary - pfamount;
  }

  @Override
  public String toString() {
      String output = new StringBuffer()
              .append("Id: ").append(employeeId)
              .append(System.lineSeparator()).append("Name: ").append(employeeName)
              .append(System.lineSeparator()).append("Salary: ").append(salary)
              .append(System.lineSeparator()).append("Net Salary: ").append(netSalary).toString();
      return output;
  }
}

import java.util.Scanner;

public class EmployeeSalaryCalculation {

private Scanner scanner;

  public EmployeeSalaryCalculation() {
    scanner = new Scanner(System.in);
  }

  public Employee getEmployeeDetails() {
      Employee employee = new Employee();
      System.out.println("Enter Id:");
      employee.setEmployeeId(scanner.nextInt());
      System.out.println("Enter Name:");
      employee.setEmployeeName(scanner.next());
      System.out.println("Enter salary:");
      employee.setSalary(scanner.nextDouble());
      return employee;
  }

  public double getPFPercentage(){
      System.out.println("Enter PF percentage:");
      return scanner.nextDouble();
  }

  public static void main(String[] args) {
      EmployeeSalaryCalculation employeeSalaryCalculation = new EmployeeSalaryCalculation();
      Employee employee = employeeSalaryCalculation.getEmployeeDetails();
      employee.calculateNetSalary(employeeSalaryCalculation.getPFPercentage());
      System.out.println(employee.toString());
  }
}

---

你有一个好的开始。但是，也有一些语法错误，例如忘记用分号结束某些语句。另外，据我所知，Java不支持嵌套方法，因此您不应该在

main

方法中包含方法

getEmployeeDetails（）

和

getPFPercentage（）

。我已经重新整理了代码来纠正这个错误

我对

Employee

类所做的其他更改，特别是

calculateNetSalary

方法

pfPercentage

除以100，然后再乘以

工资

。此外，使用适当的setter方法计算后，实例变量

netSalary

被设置为局部变量

netSalary

。方法

netSalary

也被重命名为

setNetSalary

，因为这更能说明该方法的功能

除了按照规范完成

Main

类之外，我没有对您的代码进行任何其他更改。如果代码的任何其他部分需要澄清，您可以对此留下评论

Main.java

import java.util.Scanner;

public class Main {

    private static Scanner scanner = new Scanner(System.in);

    public static void main(String[] args){
        Employee newEmployee = getEmployeeDetails();
        double pfPercentage = getPFPercentage();

        System.out.println();
        System.out.println("Confirm employee details: ");
        System.out.println("Id : " + newEmployee.getEmployeeId());
        System.out.println("Name : " + newEmployee.getEmployeeName());
        System.out.println("Salary : " + newEmployee.getSalary());

        newEmployee.calculateNetSalary(pfPercentage);
        System.out.println("Net Salary : " + newEmployee.getNetSalary());
    }

    /**
     * Gets the details of a new employee from user input
     * @return the new {@link Employee}
     */
    public static Employee getEmployeeDetails() {
        Employee employee = new Employee();
        System.out.println("Enter Id: ");
        employee.setEmployeeId(scanner.nextInt());
        System.out.println("Enter Name: ");
        employee.setEmployeeName(scanner.next());
        System.out.println("Enter salary: ");
        employee.setSalary(scanner.nextDouble());
        return employee;
    }

    /**
     * Gets the PF percentage from user input
     * @return the PF percentage
     */
    public static double getPFPercentage(){
        System.out.println("Enter PF percentage:");
        double pfPercentage = scanner.nextDouble();
        return pfPercentage;
    }

}

public class Employee{

    private int employeeId;
    private String employeeName;
    private double salary;
    private double netSalary;

    // Setters
    public void setEmployeeId(int employeeId){
        this.employeeId = employeeId;
    }

    public void setEmployeeName(String employeeName){
        this.employeeName = employeeName;
    }

    public void setSalary(double salary){
        this.salary = salary;
    }

    private void setNetSalary(double netSalary){
        this.netSalary = netSalary;
    }

    // Getters
    public int getEmployeeId(){
        return employeeId;
    }

    public String getEmployeeName(){
        return employeeName;
    }

    public double getSalary(){
        return salary;
    }

    public double getNetSalary(){
        return netSalary;
    }

    public void calculateNetSalary (double pfPercentage){
        double pfAmount = salary * (pfPercentage / 100);
        double netSalary = salary - pfAmount;
        this.setNetSalary(netSalary);
    }
}

Employee.java

import java.util.Scanner;

public class Main {

    private static Scanner scanner = new Scanner(System.in);

    public static void main(String[] args){
        Employee newEmployee = getEmployeeDetails();
        double pfPercentage = getPFPercentage();

        System.out.println();
        System.out.println("Confirm employee details: ");
        System.out.println("Id : " + newEmployee.getEmployeeId());
        System.out.println("Name : " + newEmployee.getEmployeeName());
        System.out.println("Salary : " + newEmployee.getSalary());

        newEmployee.calculateNetSalary(pfPercentage);
        System.out.println("Net Salary : " + newEmployee.getNetSalary());
    }

    /**
     * Gets the details of a new employee from user input
     * @return the new {@link Employee}
     */
    public static Employee getEmployeeDetails() {
        Employee employee = new Employee();
        System.out.println("Enter Id: ");
        employee.setEmployeeId(scanner.nextInt());
        System.out.println("Enter Name: ");
        employee.setEmployeeName(scanner.next());
        System.out.println("Enter salary: ");
        employee.setSalary(scanner.nextDouble());
        return employee;
    }

    /**
     * Gets the PF percentage from user input
     * @return the PF percentage
     */
    public static double getPFPercentage(){
        System.out.println("Enter PF percentage:");
        double pfPercentage = scanner.nextDouble();
        return pfPercentage;
    }

}

public class Employee{

    private int employeeId;
    private String employeeName;
    private double salary;
    private double netSalary;

    // Setters
    public void setEmployeeId(int employeeId){
        this.employeeId = employeeId;
    }

    public void setEmployeeName(String employeeName){
        this.employeeName = employeeName;
    }

    public void setSalary(double salary){
        this.salary = salary;
    }

    private void setNetSalary(double netSalary){
        this.netSalary = netSalary;
    }

    // Getters
    public int getEmployeeId(){
        return employeeId;
    }

    public String getEmployeeName(){
        return employeeName;
    }

    public double getSalary(){
        return salary;
    }

    public double getNetSalary(){
        return netSalary;
    }

    public void calculateNetSalary (double pfPercentage){
        double pfAmount = salary * (pfPercentage / 100);
        double netSalary = salary - pfAmount;
        this.setNetSalary(netSalary);
    }
}

---

你是说你不能计算百分比吗？请澄清您所坚持的是什么。您不能在其他方法中包含方法。因此，首先删除这两个空方法

setEmployeeId（）

、

setEmployeeName（）

和

setAlary（）

是Employee类的方法，因此需要对Employee调用它们：

emp.setEmployeeId（…）

。不要试图打印内容，获取输入，并在一行中设置员工ID。这是三个单独的说明，应该放在三行上：1。打印一条消息，2。读取员工ID，3。将员工的ID设置为您在步骤2中读取的ID。