项目三（开发团队调度软件）

整体结构

工具包

Date类（员工数据）

 1 package day2_1_project3.util;
 2 
 3 public class Data {
 4     public static final int EMPLOYEE = 10;
 5     public static final int PROGRAMMER = 11;
 6     public static final int DESIGNER = 12;
 7     public static final int ARCHITECT = 13;
 8 
 9     public static final int PC = 21;
10     public static final int NOTEBOOK = 22;
11     public static final int PRINTER = 23;
12 
13     //Employee(一般员工): 10,id,name,age,salary
14     //Programmer（程序员）: 11,id,name,age,salary
15     //Designer（设计师）: 12,id,name,age,salary,bonus
16     //Architect（架构师）: 13,id,name,age,salary,bonus,stock
17     public static final String[][] EMPLOYEES = {
18             {"10","1","马云","22","3000"},
19             {"13","2","马化腾","32","18000","15000","2000"},
20             {"11","3","李彦宏","23","7000"},
21             {"11","4","刘强东","24","7300"},
22             {"12","5","雷军","28","10000","5000"},
23             {"11","6","任志强","22","6800"},
24             {"12","7","柳传志","29","10800","5200"},
25             {"13","8","杨元庆","30","19800","15000","2500"},
26             {"12","9","史玉柱","26","3000","5500"},
27             {"11","10","丁磊","21","6600"},
28             {"11","11","张朝阳","25","7100"},
29             {"12","12","杨志远","27","9600","4800"}
30     };
31 
32     //如下的EQUIPMENTS数组与上面的EMPLOYEES数组元素一一对应
33     //PC      :21,model,display
34     //NoteBook:22,model,price
35     //Printer :23,name,type
36     public static final String[][] EQUIPMENTS = {
37             {},
38             {"22","联想T4","6000"},
39             {"21","戴尔","NEC17寸"},
40             {"21","戴尔","三星17寸"},
41             {"23","佳能2900","激光"},
42             {"21","华硕","三星17寸"},
43             {"21","华硕","三星17寸"},
44             {"23","爱普生20K","针式"},
45             {"22","普惠m6","5800"},
46             {"21","戴尔","NEC17寸"},
47             {"21","华硕","三星17寸"},
48             {"22","普惠m6","5800"},
49     };
50 }

TSUtility类（读取键盘输入的工具类）

 1 package day2_1_project3.util;
 2 import java.util.Scanner;
 3 public class TSUtility {
 4     private static Scanner scanner = new Scanner(System.in);
 5 
 6     /**
 7      * 读取键盘输入的菜单序号
 8      * @return
 9      */
10     public static char readMenuSelection() {
11         for (; ; ) {
12             String str = readKeyBoard(1,false);
13             char c = str.charAt(0);
14             if (c == '1' || c == '2' || c == '3' || c == '4') {
15                 return c;
16             }
17             System.out.print("选择错误，请重新输入：");
18         }
19     }
20 
21     /**
22      * 读取键盘输入字符
23      * @return
24      */
25     public static char readChar() {
26         for (; ; ) {
27             String str = readKeyBoard(1,false);
28             return str.charAt(0);
29         }
30     }
31 
32     public static int readInt() {
33         for (; ; ) {
34             String str = readKeyBoard(2,false);
35             int num = Integer.parseInt(str);
36             return num;
37         }
38     }
39 
40 
41     public static char readConfirmSelection() {
42         for (; ; ) {
43             String str = readKeyBoard(1,false);
44             char c = str.toUpperCase().charAt(0);
45             if (c == 'Y' || c == 'N') {
46                 return c;
47             }
48             System.out.print("选择错误，请重新输入：");
49         }
50     }
51 
52     /**
53      * 按Enter键继续
54      */
55     public static void readEnter() {
56         System.out.print("按Enter键继续...");
57         readKeyBoard(100, true);
58     }
59 
60 
61     /**
62      * 读取键盘输入
63      * @param limit
64      * @return
65      */
66     private static String readKeyBoard(int limit,boolean enterKey){
67         String str = "";
68         while (scanner.hasNextLine() ) {
69             str = scanner.nextLine().trim();
70             if (str.length() == 0) {
71                 if (enterKey) {
72                     return str;
73                 }
74                 System.out.println("请重新输入：");
75             } else if (str.length() > limit) {
76                 System.out.print("输入长度不能大于" + limit + ",请重新输入：");
77             } else {
78                 break;
79             }
80         }
81         return str;
82     }
83 
84 }

实体类包

Employee类（一般员工）

 1 package day2_1_project3.domain;
 2 
 3 public class Employee {
 4     private int id;
 5     private String name;
 6     private int age;
 7     private double salary;
 8 
 9     public Employee() {
10     }
11 
12     public Employee(int id, String name, int age, double salary) {
13         this.id = id;
14         this.name = name;
15         this.age = age;
16         this.salary = salary;
17     }
18 
19     public int getId() {
20         return id;
21     }
22 
23     public void setId(int id) {
24         this.id = id;
25     }
26 
27     public String getName() {
28         return name;
29     }
30 
31     public void setName(String name) {
32         this.name = name;
33     }
34 
35     public int getAge() {
36         return age;
37     }
38 
39     public void setAge(int age) {
40         this.age = age;
41     }
42 
43     public double getSalary() {
44         return salary;
45     }
46 
47     public void setSalary(double salary) {
48         this.salary = salary;
49     }
50 
51     public String getDetails() {
52         return id + "\t" + name + "\t"  + age + "\t\t"  + salary;
53     }
54 
55     @Override
56     public String toString() {
57         return getDetails();
58     }
59 }

Programmer类（程序员）

 1 package day2_1_project3.domain;
 2 
 3 import day2_1_project3.service.Status;
 4 
 5 public class Programmer extends Employee {
 6     private int memberId;//开发团队中的id
 7     //Status.FREE      空闲
 8     //Status.BUSY      已加入开发团队
 9     //Status.VOCATION  正在休假
10     private Status status = Status.FREE;//默认的状态是FREE
11     private Equipment equipment; //设备
12 
13     public Programmer() {
14     }
15 
16     public Programmer(int id, String name, int age, double salary, Equipment equipment) {
17         super(id, name, age, salary);
18         this.equipment = equipment;
19     }
20 
21     public int getMemberId() {
22         return memberId;
23     }
24 
25     public void setMemberId(int memberId) {
26         this.memberId = memberId;
27     }
28 
29     public Status getStatus() {
30         return status;
31     }
32 
33     public void setStatus(Status status) {
34         this.status = status;
35     }
36 
37     public Equipment getEquipment() {
38         return equipment;
39     }
40 
41     public void setEquipment(Equipment equipment) {
42         this.equipment = equipment;
43     }
44 
45     @Override
46     public String toString() {
47         return getDetails() + "\t程序员\t" + status + "\t\t\t\t\t" + equipment.getDescription();
48     }
49 
50     public String getBaseDetails() {
51         return memberId + "/" + getId() + "\t\t" + getName() + "\t" + getAge() + "\t\t" +
52                 getSalary();
53     }
54 
55     public String getDetailsForTeam() {
56         return getBaseDetails()  + "\t" + "程序员"  + "\t" + status + "\t\t\t\t\t" + equipment.getDescription();
57     }
58 }

Designer类（设计师）

 1 package day2_1_project3.domain;
 2 
 3 public class Designer extends Programmer {
 4     private double bonus;//奖金
 5 
 6     public Designer() {
 7     }
 8 
 9     public Designer(int id, String name, int age, double salary, Equipment equipment, double bonus) {
10         super(id, name, age, salary, equipment);
11         this.bonus = bonus;
12     }
13 
14     public double getBonus() {
15         return bonus;
16     }
17 
18     public void setBonus(double bonus) {
19         this.bonus = bonus;
20     }
21 
22     @Override
23     public String toString() {
24         return getDetails() + "\t设计师\t" + getStatus() + "\t" + bonus + "\t\t\t" + getEquipment().getDescription();
25     }
26 
27     @Override
28     public String getDetailsForTeam() {
29         return getBaseDetails()  + "\t" + "设计师" + "\t" + getStatus() + "\t" + bonus + "\t\t\t" + getEquipment().getDescription();
30     }
31 }

Architect类（架构师）

 1 package day2_1_project3.domain;
 2 
 3 public class Architect extends Designer {
 4     private int stock;//股份
 5 
 6     public Architect() {
 7     }
 8 
 9     public Architect(int id, String name, int age, double salary, Equipment equipment, double bonus, int stock) {
10         super(id, name, age, salary, equipment, bonus);
11         this.stock = stock;
12     }
13 
14     public int getStock() {
15         return stock;
16     }
17 
18     public void setStock(int stock) {
19         this.stock = stock;
20     }
21 
22     @Override
23     public String toString() {
24         return getDetails() + "\t架构师\t" + getStatus() + "\t" + getBonus() + "\t" + stock +"\t" + getEquipment().getDescription();
25     }
26     @Override
27     public String getDetailsForTeam() {
28         return getBaseDetails()  + "\t" + "架构师" + "\t" + getStatus()  + "\t" + getBonus() + "\t" + stock + "\t" + getEquipment().getDescription();
29     }
30 }

Equipment接口（设备）

1 package day2_1_project3.domain;
2 
3 public interface Equipment {
4     String getDescription();
5 }

NoteBook类（笔记本电脑）

 1 package day2_1_project3.domain;
 2 
 3 public class NoteBook implements Equipment {
 4     private String model;//机器型号
 5     private double price;//机器价格
 6 
 7     @Override
 8     public String getDescription() {
 9         return model + "(" + price + ")";
10     }
11 
12     public NoteBook() {
13     }
14 
15     public NoteBook(String model, double price) {
16         this.model = model;
17         this.price = price;
18     }
19 
20     public String getModel() {
21         return model;
22     }
23 
24     public void setModel(String model) {
25         this.model = model;
26     }
27 
28     public double getPrice() {
29         return price;
30     }
31 
32     public void setPrice(double price) {
33         this.price = price;
34     }
35 }

PC类（台式电脑）

 1 package day2_1_project3.domain;
 2 
 3 public class PC implements Equipment{
 4     private String model;//机器型号
 5     private String display;//显示器名称
 6 
 7     @Override
 8     public String getDescription() {
 9         return model + "(" + display + ")";
10     }
11 
12     public PC() {
13     }
14 
15     public PC(String model, String display) {
16         this.model = model;
17         this.display = display;
18     }
19 
20     public String getModel() {
21         return model;
22     }
23 
24     public void setModel(String model) {
25         this.model = model;
26     }
27 
28     public String getDisplay() {
29         return display;
30     }
31 
32     public void setDisplay(String display) {
33         this.display = display;
34     }
35 }

Printer类（打印机）

 1 package day2_1_project3.domain;
 2 
 3 public class Printer implements Equipment {
 4     private String name;//机器名称
 5     private String type;//机器类型
 6 
 7     @Override
 8     public String getDescription() {
 9         return name + "(" + type + ")";
10     }
11 
12     public Printer(String name, String type) {
13         this.name = name;
14         this.type = type;
15     }
16 
17     public Printer() {
18     }
19 
20     public String getName() {
21         return name;
22     }
23 
24     public void setName(String name) {
25         this.name = name;
26     }
27 
28     public String getType() {
29         return type;
30     }
31 
32     public void setType(String type) {
33         this.type = type;
34     }
35 }

service包

NameListService类

 1 package day2_1_project3.service;
 2 
 3 import day2_1_project3.domain.*;
 4 import static day2_1_project3.util.Data.*;
 5 
 6 
 7 /**
 8  * 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
 9  */
10 public class NameListService {
11     private Employee[] employees;
12 
13     /**
14      * 1.根据项目提供的Data类构建相应大小的employees数组
15      * 2.再根据Data类中的数据构建不同的对象，包括Employee,Programmer,Designer,Architect
16      * 3.将对象存于数组中
17      */
18     public NameListService() {
19         this.employees = new Employee[EMPLOYEES.length];
20 
21         for (int i = 0; i < EMPLOYEES.length; i++) {
22             //获取Employee的4个基本信息
23             int id = Integer.parseInt(EMPLOYEES[i][1]);
24             String name = EMPLOYEES[i][2];
25             int age = Integer.parseInt(EMPLOYEES[i][3]);
26             double salary = Double.parseDouble(EMPLOYEES[i][4]);
27             Equipment equipment;
28             double bonus;
29 
30             int type = Integer.parseInt(EMPLOYEES[i][0]);
31             switch (type) {
32                 case EMPLOYEE:
33                     employees[i] = new Employee(id, name, age, salary);
34                     break;
35                 case PROGRAMMER:
36                     equipment = createEquipment(i);
37                     employees[i] = new Programmer(id, name, age, salary, equipment);
38                     break;
39                 case DESIGNER:
40                     equipment = createEquipment(i);
41                     bonus = Double.parseDouble(EMPLOYEES[i][5]);
42                     employees[i] = new Designer(id, name, age, salary, equipment, bonus);
43                     break;
44                 case ARCHITECT:
45                     equipment = createEquipment(i);
46                     bonus = Double.parseDouble(EMPLOYEES[i][5]);
47                     int stock = Integer.parseInt(EMPLOYEES[i][6]);
48                     employees[i] = new Architect(id, name, age, salary, equipment, bonus, stock);
49                     break;
50             }
51         }
52     }
53 
54     private Equipment createEquipment(int index) {
55             int key = Integer.parseInt(EQUIPMENTS[index][0]);
56             String modelOrName = EQUIPMENTS[index][1];
57             switch (key) {
58                 case PC://21
59                     String display = EQUIPMENTS[index][2];
60                     return new PC(modelOrName,display);
61                 case NOTEBOOK://22
62                     double price = Double.parseDouble(EQUIPMENTS[index][2]);
63                     return new NoteBook(modelOrName,price);
64                 case PRINTER://23
65                     String type = EQUIPMENTS[index][2];
66                     return new Printer(modelOrName,type);
67             }
68             return null;
69     }
70 
71     /**
72      * 获取当前所有员工
73      * @return
74      */
75     public Employee[] getAllEmployees() {
76         return employees;
77     }
78 
79     /**
80      * 获取指定ID的员工对象
81      * @param id
82      * @return
83      */
84     public Employee getEmployee(int id) throws TeamException {
85         for (int i = 0; i < employees.length; i++) {
86             if (employees[i].getId() == id) {
87                 return employees[i];
88             }
89         }
90         throw new TeamException("找不到指定的员工");
91     }
92 
93 }

TeamService类

  1 package day2_1_project3.service;
  2 
  3 import day2_1_project3.domain.Architect;
  4 import day2_1_project3.domain.Designer;
  5 import day2_1_project3.domain.Employee;
  6 import day2_1_project3.domain.Programmer;
  7 
  8 /**
  9  * 关于开发团队成员的管理：添加、删除等
 10  */
 11 public class TeamService {
 12     private static int counter = 1;//用来为开发团队新增成员自动生成团队中的唯一ID，即memberId.
 13     private final int MAX_MEMBER = 5;//开发团队最大成员数
 14     private Programmer[] team = new Programmer[MAX_MEMBER];//保存当前团队中的各成员对象
 15     private int total;//记录团队成员的实际人数
 16 
 17     public TeamService() {
 18     }
 19 
 20     /**
 21      * 获取开发团队中的所有成员
 22      * @return
 23      */
 24     public Programmer[] getTeam() {
 25         Programmer[] programmers = new Programmer[total];
 26         for (int i = 0; i < total; i++) {
 27             programmers[i] = team[i];
 28         }
 29         return programmers;
 30     }
 31 
 32     /**
 33      * 将指定员工添加开发团队中
 34      * @param e
 35      * @throws TeamException
 36      */
 37     public void addMember(Employee e) throws TeamException {
 38         if (total >= MAX_MEMBER) {
 39             throw new TeamException("团队已满");
 40         }
 41         if (!(e instanceof Programmer)) {
 42             throw new TeamException("该成员不是开发人员");
 43         }
 44         if (isExist(e)) {
 45             throw new TeamException("该员工已在本开发团队中");
 46         }
 47         Programmer prog = (Programmer)e;
 48         //因为Status类没有重写Object的equals()方法，所以下面这个就不要使用了
 49         //if (programmer.getStatus().equals(Status.BUSY)){
 50         //下面这两行功能相识，但后者更好，因为equals()方法的调用者"BUSY",确保了不会出现空指针异常
 51         //if(programmer.getStatus().getNAME().equals("BUSY")){
 52         if("BUSY".equals(prog.getStatus().getNAME())){
 53             throw new TeamException(" 该员工已在某开发团队中");
 54         }else if ("VOCATION".equals(prog.getStatus().getNAME())) {
 55             throw new TeamException(" 该员工正在休假");
 56         }
 57         int numOfArch = 0,numOfDes = 0,numOfPro = 0;
 58         for (int i = 0; i <total; i++) {
 59             if (team[i] instanceof Architect) {
 60                 numOfArch++;
 61             } else if (team[i] instanceof Designer) {
 62                 numOfDes++;
 63             } else {
 64                 numOfPro++;
 65             }
 66         }
 67 
 68         //（e instanceof Architect）是true的话，不管(numOfArch >= 1)是true还是false,
 69         // 下面的else if和else都不会执行
 70         if (e instanceof Architect) {
 71             if (numOfArch >= 1) {
 72                 throw new TeamException("团队中至多只能有一名架构师");
 73             }
 74         } else if (e instanceof Designer) {
 75             if (numOfDes >= 2) {
 76                 throw new TeamException("团队中至多只能有两名设计师");
 77             }
 78         } else {
 79             if (numOfPro >= 3) {
 80                 throw new TeamException("团队中至多只能有三名程序员");
 81             }
 82         }
 83 
 84 
 85         //如果换成下面的编码，是否可以实现和上面一样的逻辑呢？
 86 //        if (e instanceof Architect && numOfArch >= 1) {
 87 //                throw new TeamException("团队中至多只能有一名架构师");
 88 //        } else if (e instanceof Designer && numOfDes >= 2) {
 89 //                throw new TeamException("团队中至多只能有两名设计师");
 90 //        } else {
 91 //                throw new TeamException("团队中至多只能有三名程序员");
 92 //        }
 93 
 94         //分析：（e instanceof Architect）是true的话，如果(numOfArch >= 1)是false,
 95         // 则下面的else if和else就有可能执行了
 96         //举例，如果开发团队只有2个设计师，现在添加一个架构师，则会执行else if()语句
 97         //报错"团队中至多只能有两名设计师",但开发团队中并没有架构师，现在添加一名
 98         //架构师是完全可以的。所以上面的编码是不正确的
 99 
100         prog.setStatus(Status.BUSY);
101         prog.setMemberId(counter++);
102         team[total++] = prog;
103     }
104 
105     /**
106      * 判断指定的员工是否已经在现有的开发团队中
107      * @param e
108      * @return
109      */
110     private boolean isExist(Employee e){
111         for (int i = 0; i < total; i++) {
112             if (e.getId() == team[i].getId()) {
113                 return true;
114             }
115         }
116         return false;
117     }
118 
119     public void removeMember(int memberId) throws TeamException {
120         for (int i = 0; i < total; i++) {
121             if (memberId == team[i].getMemberId()) {
122                 team[i].setStatus(Status.FREE);
123                 for (int j = i; j < total-1; j++) {
124                     team[j] = team[j + 1];
125                 }
126                 team[--total] = null;
127                 return;
128             }
129         }
130         throw new TeamException("找不到该成员");
131     }
132 }

Status 状态类

 1 package day2_1_project3.service;
 2 
 3 public class Status {
 4     private final String NAME;
 5 
 6     private Status(String name) {
 7         this.NAME = name;
 8     }
 9     public static final Status FREE= new Status("FREE");
10     public static final Status BUSY= new Status("BUSY");
11     public static final Status VOCATION= new Status("VOCATION");
12 
13     public String getNAME() {
14         return NAME;
15     }
16 
17     @Override
18     public String toString() {
19         return NAME;
20     }
21 }

TeamException 异常类

 1 package day2_1_project3.service;
 2 
 3 /**
 4  * 自定义异常类
 5  */
 6 public class TeamException extends Exception {
 7 
 8     static final long serialVersionUID = -3387513124229948L;
 9 
10     public TeamException() {
11     }
12 
13     public TeamException(String message) {
14         super(message);
15     }
16 }

view包

TeamView类

  1 package day2_1_project3.view;
  2 
  3 import day2_1_project3.domain.Employee;
  4 import day2_1_project3.domain.Programmer;
  5 import day2_1_project3.service.NameListService;
  6 import day2_1_project3.service.TeamException;
  7 import day2_1_project3.service.TeamService;
  8 import day2_1_project3.util.TSUtility;
  9 
 10 public class TeamView {
 11     private NameListService listSvs = new NameListService();
 12     private TeamService teamSvs = new TeamService();
 13 
 14     /**
 15      * 主界面显示及控制方法
 16      */
 17     public void enterMainMenu(){
 18         boolean loopFlag = true;
 19         char menu = 0;
 20         while (loopFlag) {
 21             if (menu != '1') {
 22                 listAllEmployees();
 23             }
 24             System.out.print("1-团队列表 2-添加团队成员 3-删除团队成员 4-退出 请选择（1-4）：");
 25             menu = TSUtility.readMenuSelection();
 26             switch (menu) {
 27                 case '1':
 28                     getTeam();
 29                     break;
 30                 case '2':
 31                     addMember();
 32                     break;
 33                 case '3':
 34                     deleteMember();
 35                     break;
 36                 case '4':
 37                     System.out.print("确认是否退出（Y/N）:");
 38                     char isExit = TSUtility.readConfirmSelection();
 39                     if (isExit == 'Y') {
 40                         loopFlag = false;
 41                     }
 42             }
 43         }
 44 
 45     }
 46 
 47     /**
 48      * 以表格方式列出公司所有成员
 49      */
 50     private void listAllEmployees() {
 51 //        System.out.println("显示开发团队所有成员");
 52         System.out.println("----------------------------开发团队调度软件----------------------------\n");
 53         Employee[] employees = listSvs.getAllEmployees();
 54         if (employees == null || employees.length == 0) {
 55             System.out.println("公司没有任何员工信息！");
 56         } else {
 57             System.out.println("ID\t姓名\t年龄\t工资\t职位\t状态\t奖金\t股票\t领用设备");
 58             for (int i = 0; i < employees.length;i++) {
 59                 System.out.println(employees[i]);
 60             }
 61         }
 62         System.out.println("-------------------------------------------------------------------------");
 63     }
 64 
 65     /**
 66      * 显示团队成员
 67      */
 68     private void getTeam() {
 69 //        System.out.println("团队列表");
 70         System.out.println("----------------------------团队成员列表----------------------------\n");
 71         Programmer[] team = teamSvs.getTeam();
 72         if (team == null || team.length == 0) {
 73             System.out.println("开发团队目前没有成员！");
 74         } else {
 75             System.out.println("TID/ID\t姓名\t年龄\t工资\t职位\t状态\t奖金\t股票\t领用设备");
 76             for (int i = 0; i < team.length; i++) {
 77                 System.out.println(team[i].getDetailsForTeam());
 78             }
 79         }
 80         System.out.println("-------------------------------------------------------------------------");
 81     }
 82 
 83     /**
 84      * 添加成员
 85      */
 86     private void addMember(){
 87 //        System.out.println("添加成员");
 88         System.out.print("请输入要添加的成员ID：");
 89         int id = TSUtility.readInt();
 90         try {
 91             Employee e = listSvs.getEmployee(id);
 92             teamSvs.addMember(e);
 93             System.out.println("添加成功！");
 94         } catch (TeamException ex) {
 95             System.out.println("添加失败，原因：" + ex.getMessage());
 96         }
 97         //按Enter键继续
 98         TSUtility.readEnter();
 99     }
100 
101     /**
102      * 删除成员
103      */
104     private void deleteMember() {
105 //        System.out.println("删除成员");
106         System.out.print("请输入要删除的成员TID：");
107         int tid = TSUtility.readInt();
108         System.out.print("确认是否删除（Y/N）:");
109         char isDelete = TSUtility.readConfirmSelection();
110         if (isDelete == 'N') {
111             return;
112         }
113         try {
114             teamSvs.removeMember(tid);
115             System.out.println("删除成功！");
116         } catch (TeamException e) {
117             System.out.println("添加失败，原因：" + e.getMessage());
118         }
119         TSUtility.readEnter();
120     }
121 
122     public static void main(String[] args) {
123         TeamView view = new TeamView();
124         view.enterMainMenu();
125     }
126 }

posted @ 2021-02-03 00:00 dog_IT 阅读(215) 评论(0) 编辑收藏举报

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