Java-day17（项目三）
com.acoffee.team.domain包：
接口Equipment：
package com.acoffee.team.domain;
public interface Equipment {
public abstract String getDescription();
}
NoteBook类：
package com.acoffee.team.domain;
public class NoteBook implements Equipment{
private String model;// 机器的型号
private double price;// 价格
public NoteBook(String model, double price) {
super();
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+")";
}
}
PC类：
package com.acoffee.team.domain;
public class PC implements Equipment{
private String model;//机器型号
private String display;//显示屏名称
public PC(String model, String display) {
super();
this.model = model;
this.display = display;
}
public String getModel() {
return model;
}
public void setModel(String model) {
this.model = model;
}
public String getDisplay() {
return display;
}
public void setDisplay(String display) {
this.display = display;
}
@Override
public String getDescription() {
return model + "(" +display+ ")";
}
}
Printer类：
package com.acoffee.team.domain;
public class Printer implements Equipment{
private String name; //机器型号
private String type; //机器类型
public String getName() {
return name;
}
public Printer(String name, String type) {
super();
this.name = name;
this.type = type;
}
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：
package com.acoffee.team.domain;
public class Employee {
private int id;
private String name;
private int age;
private double salary;
public Employee() {
super();
}
public Employee(int id, String name, int age, double salary) {
super();
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 getDetails() {
return id + "\t" + name + "\t" + age + "\t" + salary;
}
@Override
public String toString() {
return getDetails();
}
}
Programmer类：
package com.acoffee.team.domain;
import com.acoffee.team.service.Status;
public class Programmer extends Employee {
private int memberId;//开发团队中的id
private Equipment equipment;
private Status status = Status.FREE;
public Programmer(int id, String name, int age, double salary,Equipment equipment) {
super(id, name, age, salary);
this.equipment = equipment;
}
public int getMemberId() {
return memberId;
}
public void setMemberId(int memberId) {
this.memberId = memberId;
}
public Equipment getEquipment() {
return equipment;
}
public void setEquipment(Equipment equipment) {
this.equipment = equipment;
}
public Status getStatus() {
return status;
}
public void setStatus(Status status) {
this.status = status;
}
@Override
public String toString() {
return super.getDetails() + "\t程序员\t" + status + "\t\t\t" + equipment.getDescription();
}
public String getTeamBaseDetails() {
return memberId + "/" + getId() +"\t"+ getName() + "\t" +getAge() + "\t" + getSalary();
}
public String getDetailsForTeam() {
return getTeamBaseDetails() + "\t程序员";
}
}
Designer类：
package com.acoffee.team.domain;
public class Designer extends Programmer {
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 double getBonus() {
return bonus;
}
public void setBonus(double bonus) {
this.bonus = bonus;
}
@Override
public String toString() {
return getDetails() + "\t设计师\t" + getStatus() + "\t" + bonus + "\t\t" +getEquipment().getDescription();
}
public String getDetailsForTeam() {
return getTeamBaseDetails() + "\t设计师\t" + getBonus();
}
}
Architect类：
package com.acoffee.team.domain;
public class Architect extends Designer{
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 int getStock() {
return stock;
}
public void setStock(int stock) {
this.stock = stock;
}
@Override
public String toString() {
return getDetails() + "\t架构师\t" + getStatus() + "\t" + getBonus() + "\t" + stock + "\t" +getEquipment().getDescription();
}
public String getDetailsForTeam() {
return getTeamBaseDetails() + "\t架构师\t" + getBonus() + "\t" + getStock();
}
}
com.acoffee.team.service包
Data类：
package com.acoffee.team.service;
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EQUIPMENTS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, name, type
public static final String[][] EQUIPMENTS = {
{
},
{
"22", "联想T4", "6000"},
{
"21", "戴尔", "NEC17寸"},
{
"21", "戴尔", "三星 17寸"},
{
"23", "佳能 2900", "激光"},
{
"21", "华硕", "三星 17寸"},
{
"21", "华硕", "三星 17寸"},
{
"23", "爱普生20K", "针式"},
{
"22", "惠普m6", "5800"},
{
"21", "戴尔", "NEC 17寸"},
{
"21", "华硕","三星 17寸"},
{
"22", "惠普m6", "5800"}
};
}
Status类：
package com.acoffee.team.service;
/**
*
* @Description 表示员工状态
* @author acoffee Email:763857320qq.com
* @version
* @date 2020-9-21 17:55:19
*
*/
public class Status {
private final String NAME;
private Status(String name) {
this.NAME = name;
}
public static final Status FREE = new Status("FREE");
public static final Status BUSY = new Status("BUSY");
public static final Status VACATION = new Status("VACATION");
public String getNAME() {
return NAME;
}
@Override
public String toString() {
return NAME;
}
}
TeamException类：
package com.acoffee.team.service;
/**
*
* @Description 自定义异常类
* @author acoffee Email:763857320qq.com
* @version
* @date 2020-9-21 20:21:43
*
*/
public class TeamException extends Exception{
static final long serialVersionUID = -3387516994229948L;
public TeamException() {
}
public TeamException(String msg) {
super(msg);
}
}
TeamService类：
package com.acoffee.team.service;
import com.acoffee.team.domain.Architect;
import com.acoffee.team.domain.Designer;
import com.acoffee.team.domain.Employee;
import com.acoffee.team.domain.Programmer;
/**
*
* @Description 关于开发团队成员的管理：添加、删除等。
* @author acoffee Email:763857320qq.com
* @version
* @date 2020-9-22 9:20:22
*
*/
public class TeamService {
private static int counter = 1;//给memberid赋值使用
private int MAX_MEMBER = 5;//限制开发团队的人数
private Programmer[] team = new Programmer[MAX_MEMBER];//保存开发团队的成员
private int total;//记录开发团队中实际人数
public TeamService() {
super();
}
/**
*
* @Description 获取开发团队中的所有成员
* @author acoffee
* @date 2020-9-22 9:26:42
* @return
*/
public Programmer[] getTeam() {
Programmer[] team = new Programmer[total];
for(int i = 0; i < team.length; i++) {
team[i] = this.team[i];
}
return team;
}
/**
*
* @Description 将指定的员工添加到开发团队中
* @author acoffee
* @date 2020-9-22 9:32:24
* @param e
* @throws TeamException
*/
public void addMember(Employee e) throws TeamException {
// 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
if(!(e instanceof Programmer)) {
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(e)) {
throw new TeamException("该成员已在开发团队中");
}
// 该员工已是某团队成员
// 该员正在休假，无法添加
Programmer p = (Programmer)e;//一定不会出现ClassCastException
// if(p.getStatus().getNAME().equals("BUSY")) 增加了出现空指针异常的风险
if("BUSY".equals(p.getStatus().getNAME())) {
throw new TeamException("该员工已是某团队成员");
}else if("VACATION".equals(p.getStatus().getNAME())) {
throw new TeamException("该员工正在休假");
}
// 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
//获取team已有成员中架构师，设计师，程序员的人数
int numOfArch = 0,numOfDes = 0,numOfPro = 0;
for(int i = 0; i < total; i++) {
if(team[i] instanceof Architect) {
numOfArch++;
}else if(team[i] instanceof Designer) {
numOfDes++;
}else {
numOfPro++;
}
}
if(p instanceof Architect) {
if(numOfArch >= 1) {
throw new TeamException("团队中已有一名架构师");
}
}else if(p instanceof Designer) {
if(numOfDes >= 2) {
throw new TeamException("团队中已有两名设计师");
}
}else if(p instanceof Programmer) {
if(numOfPro >= 3) {
throw new TeamException("团队中已有三名程序员");
}
}
//将p（或e）添加到现有的team中
team[total++] = p;
//p的属性赋值
p.setStatus(Status.BUSY);
p.setMemberId(counter++);
}
/**
*
* @Description 判断指定的员工是否已经存在于现有的团队中
* @author acoffee
* @date 2020-9-22 9:57:15
* @param e
* @return
*/
private boolean isExist(Employee e) {
for(int i = 0; i < total; i++) {
if(team[i].getId() == e.getId()) {
return true;
}
}
return false;
}
/**
*
* @Description 从团队中删除成员
* @author acoffee
* @throws TeamException
* @date 2020-9-22 11:15:05
*/
public void removeMember(int memberId) throws TeamException {
int i = 0;
for(;i < total;i++) {
if(team[i].getMemberId() == memberId) {
team[i].setStatus(Status.FREE);
break;
}
}
if(i == total) {
throw new TeamException("找不到指定memberId的员工，删除失败");
}
//删除一个元素：后一个元素覆盖前一个元素
// 方式一：
// for(int j = i + 1; j < total; j++) {
// team[j - 1] = team[j];
// }
//方式二：
for(int j = i; j < total - 1;j++) {
team[j] = team[j+1];
}
team[--total] = null;
}
}
NameListService类：
package com.acoffee.team.service;
import com.acoffee.team.domain.Architect;
import com.acoffee.team.domain.Designer;
import com.acoffee.team.domain.Employee;
import com.acoffee.team.domain.Equipment;
import com.acoffee.team.domain.NoteBook;
import com.acoffee.team.domain.PC;
import com.acoffee.team.domain.Printer;
import com.acoffee.team.domain.Programmer;
import static com.acoffee.team.service.Data.*;
/**
*
* @Description 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 acoffee Email:763857320qq.com
* @version v1.0
* @date 2020-9-21 18:27:49
*
*/
public class NameListService {
private Employee[] employees;
public NameListService() {
// 根据项目提供的Data类构建相应大小的employees数组
// 再根据Data类中的数据构建不同的对象，包括Employee、Programmer、Designer和Architect对象，以及相关联的Equipment子类的对象
// 将对象存于数组中
employees = new Employee[EMPLOYEES.length];
for(int i = 0; i < employees.length; i++) {
//获取员工的类型
int type = Integer.parseInt(EMPLOYEES[i][0]);
//获取Employee的4个基本信息
int id = Integer.parseInt(EMPLOYEES[i][1]);
String name = EMPLOYEES[i][2];
int age = Integer.parseInt(EMPLOYEES[i][3]);
double salary = Double.parseDouble(EMPLOYEES[i][4]);
Equipment equipment;
double bonus;
switch(type) {
case EMPLOYEE:
employees[i] = new Employee(id, name, age, salary);
break;
case PROGRAMMER:
equipment = createEquipment(i);
employees[i] = new Programmer(id, name, age, salary, equipment);
break;
case DESIGNER:
equipment = createEquipment(i);
bonus = Double.parseDouble(EMPLOYEES[i][5]);
employees[i] = new Designer(id, name, age, salary, equipment, bonus);
break;
case ARCHITECT:
equipment = createEquipment(i);
bonus = Double.parseDouble(EMPLOYEES[i][5]);
int stock = Integer.parseInt(EMPLOYEES[i][6]);
employees[i] = new Architect(id, name, age, salary, equipment, bonus, stock);
break;
}
}
}
/**
*
* @Description 获取指定index上的员工的设备
* @author acoffee
* @date 2020-9-21 19:05:24
* @param i
* @return
*/
private Equipment createEquipment(int index) {
int key = Integer.parseInt(EQUIPMENTS[index][0]);
String model = EQUIPMENTS[index][1];
switch(key) {
case PC://21
String display = EQUIPMENTS[index][2];
return new PC(model, display);
case NOTEBOOK:
double price = Double.parseDouble(EQUIPMENTS[index][2]);
return new NoteBook(model, price);
case PRINTER:
String type = EQUIPMENTS[index][2];
return new Printer(model, type);
}
return null;
}
/**
*
* @Description 获取当前所有员工
* @author acoffee
* @date 2020-9-21 20:14:35
* @return employees
*/
public Employee[] getAllEmployee() {
return employees;
}
/**
*
* @Description 指定员工的ID
* @author acoffee
* @date 2020-9-21 20:15:44
* @param id
* @return 指定员工对象
* @throws TeamException
*/
public Employee getEmployee(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");
}
}
com.acoffee.team.view包
TSUtility类（工具类）：
package com.acoffee.team.view;
import java.util.*;
/**
*
* @Description 项目中提供了TSUtility.java类，可用来方便地实现键盘访问。
* @author shkstart Email:[email protected]
* @version
* @date 2019年2月12日上午12:02:58
*
*/
public class TSUtility {
private static Scanner scanner = new Scanner(System.in);
/**
*
* @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
* @return
*/
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);
}
/**
*
* @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
* @return
*/
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;
}
/**
*
* @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
* @return
*/
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;
}
}
TeamView类：
package com.acoffee.team.view;
import com.acoffee.team.domain.Employee;
import com.acoffee.team.domain.Programmer;
import com.acoffee.team.service.NameListService;
import com.acoffee.team.service.TeamException;
import com.acoffee.team.service.TeamService;
public class TeamView {
private NameListService listSvc = new NameListService();
private TeamService teamSvc = new TeamService();
public void enterMainMenu() {
boolean isFlag = true;
char menu = 0;
while(isFlag) {
if(menu != '1') {
listAllEmployee();
}
System.out.println("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)：");
menu = TSUtility.readMenuSelection();
switch(menu) {
case '1':
getTeam();
break;
case '2':
addMember();
break;
case '3':
deleteMember();
break;
case '4':
System.out.println("确认是否退出(Y/N):");
char isExit = TSUtility.readConfirmSelection();
if(isExit == 'Y') {
isFlag = false;
}
break;
}
}
}
/**
*
* @Description 显示所有的员工信息
* @author acoffee
* @date 2020-9-22 18:55:01
*/
private void listAllEmployee() {
//System.out.println("显示公司所有的员工");
System.out.println("--------------------------开发团队调度软件--------------------------\n");
Employee[] employees = listSvc.getAllEmployee();
if(employees == null || employees.length == 0) {
//知识点null和长度为0的区别
System.out.println("公司中没有任何员工信息！");
}else {
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");
for(int i = 0;i < employees.length;i++) {
System.out.println(employees[i]);
}
}
System.out.println("-----------------------------------------------------------");
}
private void getTeam() {
//System.out.println("查看开发团队情况");
System.out.println("--------------------------团队成员列表--------------------------\n");
Programmer[] team = teamSvc.getTeam();
if(team == null || team.length == 0) {
System.out.println("开发团队目前没有成员");
}else {
System.out.println("TID/ID\t姓名\t年龄\t工资\t职位\t奖金\t股票\n");
for(int i = 0;i < team.length;i++) {
System.out.println(team[i].getDetailsForTeam());
}
}
System.out.println("-----------------------------------------------------------");
}
private void addMember() {
//System.out.println("添加团队成员");
System.out.println("--------------------------团队成员列表--------------------------\n");
System.out.println("请输入你要添加的员工ID：");
int id = TSUtility.readInt();
try {
Employee emp = listSvc.getEmployee(id);
teamSvc.addMember(emp);
System.out.println("添加成功");
} catch (TeamException e) {
System.out.println("添加失败，原因：" + e.getMessage());
}
TSUtility.readReturn();
}
private void deleteMember() {
//System.out.println("删除团队成员");
System.out.println("--------------------------删除员工--------------------------\n");
System.out.println("请输入要删除员工的TID:");
int memberId = TSUtility.readInt();
System.out.println("确认是否删除(Y/N)：");
char isDelete = TSUtility.readConfirmSelection();
if(isDelete == 'N') {
return;
}
try {
teamSvc.removeMember(memberId);
System.out.println("删除成功");
} catch (TeamException e) {
System.out.println("删除失败，原因："+e.getMessage());
}
//按回车继续
TSUtility.readReturn();
}
public static void main(String[] args) {
TeamView view = new TeamView();
view.enterMainMenu();
}
}
通过该项目三发现自己有很多不足，很多知识点都还是模模糊糊的，做项目是让我感觉到了知识的融汇贯通的重要性，继续加油吧。