Java学习笔记项目三：开发团队调度软件（尚硅谷）

JAVA学习笔记开发团队调度软件

①创建基础组件

Equipment 接口

---

package august.domain;

/**
 * 设备领取
 *
 * @author : Crazy_August
 * @Date: 2021-02-28
 * @Time: 16:58
 */
public interface Equipment {

   public abstract  String getDescription();

}

---

Equipment接口子类的设计（PC、NoteBook、Printer）

PC

---

package august.domain;

/**
 * Created with IntelliJ IDEA.
 *
 * @author : Crazy_August
 * @Date: 2021-02-28
 * @Time: 17:41
 */
public class PC implements Equipment{

    //机器的型号
    private String model;
    //显示器名称
    private String display;

    public PC() {

    }

    public PC(String model, String display) {
        this.model = model;
        this.display = display;
    }

    public String getModel() {
        return model;
    }

    public String getDisplay() {
        return display;
    }



    @Override
    public String getDescription() {
        return model +"(" +  display + ")";
    }

}

---

NoteBook类

---

package august.domain;

import august.domain.Equipment;

/**
 * Created with IntelliJ IDEA.
 *
 * @author : Crazy_August
 * @Date: 2021-02-28
 * @Time: 17:43
 */
public class NoteBook implements Equipment {

    //机器的型号
    private String model;
    private double price;

    public NoteBook() {

    }

    public NoteBook(String model, double price) {
        this.model = model;
        this.price = price;
    }


    public String getModel() {
        return model;
    }

    public void setModel(String model) {
        this.model = model;
    }

    public double getPrice() {
        return price;
    }

    public void setPrice(double price) {
        this.price = price;
    }

    @Override
    public String getDescription() {
        return model + "(" + price + ")";
    }
}

---

Printer类

---

package august.domain;

/**
 * Created with IntelliJ IDEA.
 *
 * @author : Crazy_August
 * @Date: 2021-02-28
 * @Time: 17:45
 */
public class Printer implements Equipment {

    private String name;
    //机器的机型
    private String type;

    public Printer() {
    }

    public Printer(String name, String type) {
        this.name = name;
        this.type = type;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getType() {
        return type;
    }

    public void setType(String type) {
        this.type = type;
    }

    @Override
    public String getDescription() {
        return name + "(" + type + ")";
    }
}

---

Employee类设计

---

Employee类

package august.domain;

/**
 * Created with IntelliJ IDEA.
 *
 * @author : Crazy_August
 * @Date: 2021-02-28
 * @Time: 16:47
 */
public class Employee {
    private int id;
    private String name;
    private int age;
    private double salary;

    public Employee(int id, String name, int age, double salary) {
        this.id = id;
        this.name = name;
        this.age = age;
        this.salary = salary;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public double getSalary() {
        return salary;
    }

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


    public String getshow(){
        return id + "\t" + name + "\t"+ age + "\t"+ salary ;
    }
    @Override
    public String toString() {
        return getshow();
    }
}

Programer类

package august.domain;

import august.service.Status;

/**
 * Created with IntelliJ IDEA.
 *
 * @author : Crazy_August
 * @Date: 2021-02-28
 * @Time: 16:51
 */
public class Programer extends Employee implements Equipment {

    //用来记录成员加入开发团队后在团队中的ID
    private int memberld;
    private Status status = Status.FREE;
    //    表示该成员领用的设备
    private Equipment equipment;

    public Programer(int id, String name, int age, double salary, Equipment equipment) {
        super(id, name, age, salary);
        this.equipment = equipment;
    }

    public Programer(int id, String name, int age, double salary) {
        super(id, name, age, salary);
    }

    @Override
    public String getDescription() {
        return null;
    }

    public int getMemberld() {
        return memberld;
    }

    public void setMemberld(int memberld) {
        this.memberld = memberld;
    }

    public Status getStatus() {
        return status;
    }

    public void setStatus(Status status) {
        this.status = status;
    }

    public Equipment getEquipment() {
        return equipment;
    }

    public void setEquipment(Equipment equipment) {
        this.equipment = equipment;
    }


    @Override
    public String toString() {
        return getshow() + "\t\t" + "程序员" + "\t" + getStatus().getNAME() + "\t\t" + "\t\t\t\t\t\t\t" + getEquipment().getDescription();
    }

    public String getDetailsTeam() {
        return memberld + "/" + getId() + "\t\t\t" + getName() + "\t" + getAge() + "\t\t" + getSalary() + "\t\t程序员";
    }
}

---

Designer类

package august.domain;

import august.service.Status;

/**
 * Created with IntelliJ IDEA.
 *
 * @author : Crazy_August
 * @Date: 2021-02-28
 * @Time: 16:51
 */
public class Designer extends Programer {

    //表示奖金
    private double bonus;

    public Designer(int id, String name, int age, double salary, Equipment equipment, double bonus) {
        super(id, name, age, salary, equipment);
        this.bonus = bonus;
    }

    public Designer(int id, String name, int age, double salary) {
        super(id, name, age, salary);
    }

    public double getBonus() {
        return bonus;
    }

    public void setBonus(double bonus) {
        this.bonus = bonus;
    }

    @Override
    public String toString() {
        return getshow() + "\t\t" + "设计师" + "\t" + getStatus().getNAME() + "\t\t" + bonus + "\t\t\t\t\t\t" + getEquipment().getDescription();
    }
    @Override
    public String getDetailsTeam() {
        return getMemberld() + "/" + getId() + "\t\t" + getName() + "\t" + getAge() + "\t\t" + getSalary() + "\t\t设计师\t" +bonus;
    }
}

---

Architect类

package august.domain;

import august.service.Status;

/**
 * Created with IntelliJ IDEA.
 *
 * @author : Crazy_August
 * @Date: 2021-02-28
 * @Time: 16:52
 */
public class Architect extends Designer {

    //表示公司奖励的股票数量
    private int stock;

    public Architect(int id, String name, int age, double salary, Equipment equipment, double bonus, int stock) {
        super(id, name, age, salary, equipment, bonus);
        this.stock = stock;
    }

    public Architect(int id, String name, int age, double salary) {
        super(id, name, age, salary);
    }


    public int getStock() {
        return stock;
    }

    public void setStock(int stock) {
        this.stock = stock;
    }

    @Override
    public String toString() {
        return getshow() + "\t\t" + "架构师" + "\t" + getStatus().getNAME()+ "\t\t" + getBonus() + "\t\t\t" + stock + "\t\t" +getEquipment().getDescription();
    }
    @Override
    public String getDetailsTeam() {
        return getMemberld() + "/" + getId() + "\t\t" + getName() + "\t" + getAge() + "\t\t" + getSalary() + "\t\t架构师\t" +getBonus() + "\t\t" + getStock();
    }
}

---

---

TSUtility 工具类

package august.view;

import java.util.Scanner;

/**
 * Created with IntelliJ IDEA.
 * 目中提供了TSUtility.java类，可用来方便地实现键盘访问。
 *
 * @author : Crazy_August
 * @Date: 2021-02-28
 * @Time: 17:06
 */
public class TSUtility {
    private static Scanner scanner = new Scanner(System.in);

    /**
     * @return
     * @Description 该方法读取键盘，如果用户键入’1’-’4’中的任意字符，则方法返回。返回值为用户键入字符。
     * @author shkstart
     * @date 2019年2月12日上午12:03:30
     */
    public static char readMenuSelection() {
        char c;
        for (; ; ) {
            String str = readKeyBoard(1, false);
            c = str.charAt(0);
            if (c != '1' && c != '2' &&
                    c != '3' && c != '4') {
                System.out.print("选择错误，请重新输入：");
            } else {
                break;
            }
        }
        return c;
    }

    /**
     * @Description 该方法提示并等待，直到用户按回车键后返回。
     * @author shkstart
     * @date 2019年2月12日上午12:03:50
     */
    public static void readReturn() {
        System.out.print("按回车键继续...");
        readKeyBoard(100, true);
    }

    /**
     * @return
     * @Description 该方法从键盘读取一个长度不超过2位的整数，并将其作为方法的返回值。
     * @author shkstart
     * @date 2019年2月12日上午12:04:04
     */
    public static int readInt() {
        int n;
        for (; ; ) {
            String str = readKeyBoard(2, false);
            try {
                n = Integer.parseInt(str);
                break;
            } catch (NumberFormatException e) {
                System.out.print("数字输入错误，请重新输入：");
            }
        }
        return n;
    }

    /**
     * @return
     * @Description 从键盘读取‘Y’或’N’，并将其作为方法的返回值。
     * @author shkstart
     * @date 2019年2月12日上午12:04:45
     */
    public static char readConfirmSelection() {
        char c;
        for (; ; ) {
            String str = readKeyBoard(1, false).toUpperCase();
            c = str.charAt(0);
            if (c == 'Y' || c == 'N') {
                break;
            } else {
                System.out.print("选择错误，请重新输入：");
            }
        }
        return c;
    }

    private static String readKeyBoard(int limit, boolean blankReturn) {
        String line = "";

        while (scanner.hasNextLine()) {
            line = scanner.nextLine();
            if (line.length() == 0) {
                if (blankReturn) {
                    return line;
                } else {
                    continue;
                }
            }

            if (line.length() < 1 || line.length() > limit) {
                System.out.print("输入长度（不大于" + limit + "）错误，请重新输入：");
                continue;
            }
            break;
        }

        return line;
    }
}

---

②实现service包中的类

---

---

---

NameListService类

---

package august.service;

import august.domain.*;


/**
 * 功能:负责将Data中的数据封装到Employee[]数组中，同时提供相关操作Employee[]的方法。
 *
 * @author : Crazy_August
 * @Date: 2021-02-28
 * @Time: 16:48
 */
public class NameListService {
    //用来保存公司所有员工对象
    private Employee[] employees;

    //给Employee及数组元素进行初始化
    public NameListService() {

        //1.根据项目提供的Data类构建相应大小的employees数组

        employees = new Employee[Data.EMPLOYEES.length];

        //动态绑定
        Equipment equipment;

        //2.再根据Data类中的数据构建不同的对象，包括Employee、Programmer、Designet ,Architect对象，以及相关联的Equipment子类的对象
        //3.将对象存于数组中
        for (int i = 0; i < employees.length; i++) {
            int type = Integer.parseInt(Data.EMPLOYEES[i][0]);
            if (Data.EMPLOYEE == type) {
                employees[i] = new Employee(Integer.parseInt(Data.EMPLOYEES[i][1]), Data.EMPLOYEES[i][2], Integer.parseInt(Data.EMPLOYEES[i][3]), Double.parseDouble(Data.EMPLOYEES[i][4]));
            } else if (Data.PROGRAMMER == type) {
                //创建员工的设备
                equipment = creativeEquipment(i);
                employees[i] = new Programer(Integer.parseInt(Data.EMPLOYEES[i][1]), Data.EMPLOYEES[i][2], Integer.parseInt(Data.EMPLOYEES[i][3]), Double.parseDouble(Data.EMPLOYEES[i][4]), equipment);
            } else if (Data.DESIGNER == type) {
                equipment = creativeEquipment(i);
                employees[i] = new Designer(Integer.parseInt(Data.EMPLOYEES[i][1]), Data.EMPLOYEES[i][2], Integer.parseInt(Data.EMPLOYEES[i][3]), Double.parseDouble(Data.EMPLOYEES[i][4]), equipment, Double.parseDouble(Data.EMPLOYEES[i][5]));
            } else if (Data.ARCHITECT == type) {
                equipment = creativeEquipment(i);
                employees[i] = new Architect(Integer.parseInt(Data.EMPLOYEES[i][1]), Data.EMPLOYEES[i][2], Integer.parseInt(Data.EMPLOYEES[i][3]), Double.parseDouble(Data.EMPLOYEES[i][4]), equipment, Double.parseDouble(Data.EMPLOYEES[i][5]), Integer.parseInt(Data.EMPLOYEES[i][6]));
            }
        }
    }

    /**
     * @Description :获取员工的设备
     * @Author Crazy_August
     * @Date 2021-02-28  20:23
     * @Since version-1.0
     */
    public Equipment creativeEquipment(int index) {
        int Employeestype = Integer.parseInt(Data.EQIPMENTS[index][0]);
        switch (Employeestype) {
            case Data.PC:
                return new PC(Data.EQIPMENTS[index][1], Data.EQIPMENTS[index][2]);
            case Data.NOTEBOOK:
                return new NoteBook(Data.EQIPMENTS[index][1], Double.parseDouble(Data.EQIPMENTS[index][2]));
            case Data.PRINTER:
                return new Printer(Data.EQIPMENTS[index][1], Data.EQIPMENTS[index][2]);
            default:
        }
        return null;
    }


    public Employee[] getAllEmployee() {

        return employees;
    }

    public Employee getEmployees(int id) throws TeamException {
        for (int i = 0; i < employees.length; i++) {
            if (employees[i].getId() == id) {
                return employees[i];
            }
        }
        throw new TeamException("找不到指定的员工");
    }
}

---

TeamException自定义异常类

---

package august.service;

/**
 * Created with IntelliJ IDEA.
 *
 * @author : Crazy_August
 * @Date: 2021-02-28
 * @Time: 16:49
 */
public class TeamException extends Exception{
    static final long serialVersionUID = -3387516229948L;

    public TeamException() {
        super();
    }
    public TeamException(String msg) {
        super(msg);
    }
}

---

TeamService类

---

package august.service;

import august.domain.Architect;
import august.domain.Designer;
import august.domain.Employee;
import august.domain.Programer;

/**
 * 功能:关于开发团队成员的管理:添加、删除等。
 *
 * @author : Crazy_August
 * @Date: 2021-02-28
 * @Time: 16:48
 */
public class TeamService {

    //用来为开发团队新增成员自动生成团队中的唯一ID
    private static int counter = 1;
    private final int MAX_MEMBER = 5;
    //用来保存当前团队中的各成员对象
    private Programer[] team = new Programer[MAX_MEMBER];
    //记录团队成员的实际人数
    private int total = 0;

    //获取team中架构师、设计师、程序员中的人数
    private int numArc = 0;
    private int numDes = 0;
    private int numPro = 0;

    //得到团队
    public Programer[] getTeam() {
        Programer[] team = new Programer[total];
        for (int i = 0; i < team.length; i++) {
            team[i] = this.team[i];
        }
        return team;
    }

    /**
     * @Description :将指定的员工加到开发团队中
     * @Param [employee]
     * @Return [august.domain.Employee]
     * @Author Crazy_August
     * @Date 2021-03-01  12:59
     * @Since version-1.0
     */
    public void addMember(Employee employee) throws TeamException {
        //失败信息包含以下几种:
        //成员已满，无法添加
        if (total == MAX_MEMBER) {
            throw new TeamException("成员已满，无法添加");
        }
        //该成员不是开发人员,无法添加
        //判断employee是否是程序员
        if (!(employee instanceof Programer)) {
            throw new TeamException("该成员不是开发人员,无法添加");
        }
        //该员工已在本开发团队中
        if (isExist(employee)) {
            throw new TeamException("该员工已在本开发团队中,无法添加");
        }
        //该员工已是某团队成员
        //需要强转，因为上方if已经过滤掉employee没有Status属性
        Programer programer = (Programer) employee;
        // 注意：判断字符串内容是否相同用.equals()

//        if ("BUSY".equalsIgnoreCase(programer.getStatus().getNAME())) {
//            throw new TeamException("该员工已是某团队成员,无法添加");
//        } else if ("VOCATION".equalsIgnoreCase(programer.getStatus().getNAME())) {
//            //该员正在休假，无法添加
//            throw new TeamException("该员正在休假,无法添加");
//        }
        if (programer.getStatus() == Status.BUSY) {
            throw new TeamException("该员工已是某团队成员,无法添加");
        } else if (programer.getStatus() == Status.VOCATION) {
            //该员正在休假，无法添加
            throw new TeamException("该员正在休假,无法添加");
        }
        //团队中至多只能有一名架构师
        //团队中至多只能有两名设计师
        //团队中至多只能有三名程序员

//        for (int i = 0; i < total; i++) {
//
//            if (employee instanceof Architect) {
//
//            } else if (employee instanceof Designer) {
//
//            } else if (employee instanceof Programer){
//
//            }
//        }
        //小范围开始，因为都继承关系为 program > Desiger >Architect
        if (employee instanceof Architect) {
            if (numArc >= 1) {
                throw new TeamException("团队中至多只能有一名架构师,无法添加");
            }
            numArc++;
        } else if (employee instanceof Designer) {
            if (numDes >= 2) {
                throw new TeamException("团队中至多只能有两名设计师,无法添加");
            }
            numDes++;
        } else {
            if (numPro >= 3) {
                throw new TeamException("团队中至多只能有三名程序员,无法添加");
            }
            numPro++;
        }

        //添加无异常，添加 employee(需要强转，因为team是Program类型)
        // 或者 programer(上方已经转型  Programer programer = (Programer) employee;)
        // 操作
        //方式一:
        //team[total] = (Programer) employee;
        //方式二:
        team[total] = programer;

        total++;
        //更改开发团队员工的Status
        programer.setStatus(Status.BUSY);

        programer.setMemberld(counter++);
    }

    /**
     * @Description :判断员工是否存在开发团队中
     * @Param [employee]
     * @Return [august.domain.Employee]
     * @Author Crazy_August
     * @Date 2021-03-01  13:23
     * @Since version-1.0
     */
    private boolean isExist(Employee employee) {
        for (int i = 0; i < total; i++) {
            if (team[i].getId() == employee.getId()) {
                return true;
            }
        }
        return false;
    }

    /**
     * @Description :删除指定成员
     * @Param [menberld]
     * @Return [int]
     * @Author Crazy_August
     * @Date 2021-03-01  18:34
     * @Since version-1.0
     */
    public void removeMember(int menberld) throws TeamException {
        for (int i = 0; i < total; i++) {
            if (team[i].getMemberld() == menberld) {
                //修改状态
                team[i].setStatus(Status.FREE);
                Programer programer = team[i];
                if (programer instanceof Architect) {
                    numArc--;
                } else if (programer instanceof Designer) {
                    numDes--;
                } else {
                    numPro--;
                }

                // 后一个元素覆盖前一个元素，实现删除操作
                for (int j = i; j < total - 1; j++) {
                    team[j] = team[j + 1];
                }
                //最后一个元素需要置空
//            team[total - 1] = null;
//            total--;
                //或
                team[--total]=null;
                return;
            }
        }
        throw new TeamException("删除失败找不到指定成员");
    }


}

---

Status类

---

package august.service;

/**
 *
 *  表示员工的状态
 * @author : Crazy_August
 * @Date: 2021-02-28
 * @Time: 18:24
 */
public class Status {

    private final String STATUS;
    private Status(String STATUS){
        this.STATUS = STATUS;
    }

    public static final Status FREE = new Status("FREE");
    public static final Status BUSY = new Status("BUSY");
    public static final Status VOCATION = new Status("VOCATION");

    public String getNAME() {
        return STATUS;
    }
}

---

Data类

---

package august.service;

/**
 * Created with IntelliJ IDEA.
 *
 * @author : Crazy_August
 * @Date: 2021-02-28
 * @Time: 17:11
 */

public class Data {
    public static final int EMPLOYEE = 10;
    public static final int PROGRAMMER = 11;
    public static final int DESIGNER = 12;
    public static final int ARCHITECT = 13;

    public static final int PC = 21;
    public static final int NOTEBOOK = 22;
    public static final int PRINTER = 23;

    //Employee  :  10, id, name, age, salary
    //Programmer:  11, id, name, age, salary
    //Designer  :  12, id, name, age, salary, bonus
    //Architect :  13, id, name, age, salary, bonus, stock
    public static final String[][] EMPLOYEES = {
            {"10", "1", "马  云", "22", "3000"},
            {"13", "2", "马化腾", "32", "18000", "15000", "2000"},
            {"11", "3", "李彦宏", "23", "7000"},
            {"11", "4", "刘强东", "24", "7300"},
            {"12", "5", "雷  军", "28", "10000", "5000"},
            {"11", "6", "任志强", "22", "6800"},
            {"12", "7", "柳传志", "29", "10800", "5200"},
            {"13", "8", "杨元庆", "30", "19800", "15000", "2500"},
            {"12", "9", "史玉柱", "26", "9800", "5500"},
            {"11", "10", "丁 磊", "21", "6600"},
            {"11", "11", "张朝阳", "25", "7100"},
            {"12", "12", "杨致远", "27", "9600", "4800"}
    };

    //如下的EQIPMENTS数组与上面的EMPLOYEES数组元素一一对应
    //PC      :21, model, display
    //NoteBook:22, model, price
    //Printer :23, type, name
    public static final String[][] EQIPMENTS = {
            {},
            {"22", "联想T4", "6000"},
            {"21", "戴尔", "NEC17寸"},
            {"21", "戴尔", "三星 17寸"},
            {"23", "激光", "佳能 2900"},
            {"21", "华硕", "三星 17寸"},
            {"21", "华硕", "三星 17寸"},
            {"23", "针式", "爱普生20K"},
            {"22", "惠普m6", "5800"},
            {"21", "戴尔", "NEC 17寸"},
            {"21", "华硕", "三星 17寸"},
            {"22", "惠普m6", "5800"}
    };
}

---

③实现View包中的类设计

---

---

TeamView类

---

package august.view;

/**
 * view
 *
 * @author : Crazy_August
 * @Date: 2021-02-28
 * @Time: 16:40
 */

import august.domain.Employee;
import august.domain.Programer;
import august.service.NameListService;
import august.service.TeamException;
import august.service.TeamService;

/**
 * @Description :负责菜单的显示和处理用户操作
 * @Author Crazy_
 * August
 * @Date 2021-02-28  16:42
 * @Since version-1.0
 */
public class TeamView {

    private NameListService listSvc = new NameListService();
    private TeamService teamSvc = new TeamService();

    public static void main(String[] args) {
        TeamView teamView = new TeamView();
        teamView.entermMainMenu();

    }

    //主界面显示及控制方法。
    public void entermMainMenu() {

        boolean isFlag = true;
        TeamView teamView = new TeamView();
        char menu = 0;
        do {
            if (menu != '1') {
                teamView.listAllEmployees();
            }
            menu = TSUtility.readMenuSelection();
            switch (menu) {
                case '1':
                    teamView.getTeam();
                    break;
                case '2':
                    teamView.addMember();
                    break;
                case '3':
                    teamView.deleteMember();
                    break;
                case '4':
                    System.out.println("确认是否退出( Y/N )：");
                    char key = TSUtility.readConfirmSelection();
                    if ('Y' == key) {
                        isFlag = false;
                        System.out.println("退出成功");
                    }

                    break;
                default:
            }
        } while (isFlag);
    }

    //以表格形式列出公司所有成员
    private void listAllEmployees() {
        System.out.println("------------------------------------开发团队调度软件---------------------------------------");
        System.out.println("ID\t姓名\t\t年龄\t工资\t\t\t职位\t\t状态\t\t\t奖金\t\t\t\t股票\t\t\t领用设备");
        //显示员工详细信息
        for (int i = 0; i < listSvc.getAllEmployee().length; i++) {
            System.out.println(listSvc.getAllEmployee()[i]);
        }
        System.out.println("-----------------------------------------------------------------------------------------");
        System.out.println("1- 团队成员 2- 添加团队成员 3-删除团队成员 4-退出  请选择( 1 - 4 ) ");
    }


    //显示团队成员列表操作
    private void getTeam() {
        System.out.println("------------------------------------团队列表----------------------------------------------");
        Programer[] team = teamSvc.getTeam();
        if (team == null || team.length == 0){
            System.out.println("开发团队还没有成员");
        }else {
            System.out.println("TID/ID\t\t姓名\t\t年龄\t\t工资\t\t\t职位\t\t奖金\t\t\t股票");
            for (int i = 0; i < team.length; i++) {
                System.out.println(team[i].getDetailsTeam());
            }
            System.out.println("-----------------------------------------------------------------------------------------");
        }


    }

    //实现添加成员操作
    private void addMember() {
        System.out.println("------------------------------------添加员工----------------------------------------------");
        System.out.print("请输入要添加的员工ID：");
        int id = TSUtility.readInt();
        try {
            Employee employees = listSvc.getEmployees(id);
            teamSvc.addMember(employees);
            System.out.println("添加成功");
        } catch (TeamException e) {
            System.out.println("添加失败，原因 ：" + e.getMessage() + "\n");
        }

        System.out.println("-----------------------------------------------------------------------------------------");
        //按回车继续
        TSUtility.readReturn();
    }

    //实现删除成员操作
    private void deleteMember() {
        System.out.println("------------------------------------删除成员----------------------------------------------");
        System.out.print("请输入要删除员工的TID：");
        int id = TSUtility.readInt();
        System.out.print("确认是否删除( Y/N )：");
        char key = TSUtility.readConfirmSelection();

        try {
            if (key == 'Y') {
                teamSvc.removeMember(id);
                System.out.println("删除成功");
            }
        } catch (TeamException e) {
            System.out.print("删除失败，原因 ：" + e.getMessage() + "\n");
        }
        TSUtility.readReturn();
        System.out.println("-----------------------------------------------------------------------------------------");

    }

}

---

总结

自定义异常类：

​ ① 继承异常类 extends Exception

​ ② 序列号 static final long serialVersionUID = -3387516229948L;

​ ③ 提供构造器

public TeamException() {
   super();
}
public TeamException(String msg) {
   super(msg);
}

---

---

判断字符串内容是否相同用.equals()

  通常字符串放在前，避免空指针异常 

//        if ("BUSY".equalsIgnoreCase(programer.getStatus().getNAME())) {
//            throw new TeamException("该员工已是某团队成员,无法添加");
//        } else if ("VOCATION".equalsIgnoreCase(programer.getStatus().getNAME())) {
//            //该员正在休假，无法添加
//            throw new TeamException("该员正在休假,无法添加");
//        }--

---

---

使用 instanceof 用来判断A是否是B的实例对象或者B子类的实例对象。

 A instanceof B ，返回值为boolean类型。

从小范围开始，因为都继承关系为 program > Desiger >Architect

Person p = new Person() ; 
Man m = new Man() ; //Man是Person的子类
Animal a = new Animal() ;
m instanceof Man //返回true
m instanceof Animal//返回false
m instanceof Person//返回true

```
//小范围开始，因为都继承关系为 program > Desiger >Architect
if (employee instanceof Architect) {
 if (numArc >= 1) {
     throw new TeamException("团队中至多只能有一名架构师,无法添加");
 }
 numArc++;
} else if (employee instanceof Designer) {
 if (numDes >= 2) {
     throw new TeamException("团队中至多只能有两名设计师,无法添加");
 }
 numDes++;
} else {
 if (numPro >= 3) {
     throw new TeamException("团队中至多只能有三名程序员,无法添加");
 }
 numPro++;
}
```

removeMember方法有点难度

删除操作

​ 1.判断输入是否合法

​ 2.后一个元素覆盖前一个元素，实现删除操作

​ 3.//最后一个元素需要置空 null

                        慢慢来，会很快。