package domain;
public interface Equipment {
//这个方法的作用要看实例项目的运行.根据运行我们知道是对输出结果进行
//相应的修改.功能类似于toString().为什么不直接用toString()呢?
//因为接口不能继承类.所有没有Object中的toString().
//关于接口中方法的语法说明:接口中的方法默认都是public abstract.所以
//可以省略不写public abstract.
//另外接口也是可以定义实体方法的.使用default即可.
public abstract String getDescription();
}
package domain;
public class NoteBook implements Equipment {
private String model;
private double price;
public NoteBook(String model, double price) {
this.model = model;
this.price = price;
}
public NoteBook() {
}
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
//因为实现了Equipment接口.所以需要重写getDescription(),这个方法
public String getDescription() {
return model+"("+price+")";
}
}
package domain;
public class PC implements Equipment {
private String model;
private String display;
public PC() {
}
public PC(String model, String display) {
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+")";
}
}
package domain;
public class Printer implements Equipment {
private String name;
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 +")";
}
}
package domain;
public class Employee {
private int id;
private String name;
private int age;
private double salary;
public Employee() {
}
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 details() {
return id + "t" + name + "t" + age + "t" + salary;
}
@Override
public String toString() {
return details();
}
}
package domain;
import service.Status;
public class Programmer extends Employee {
//团队Id,就是每个程序员以及他子类的对象都可以添加到
//项目要求的团队中.然后给他们的这个属性进行赋值修改.
private int memberId;
public int getMemberId() {
return memberId;
}
public void setMemberId(int memberId) {
this.memberId = memberId;
}
//状态:空闲/繁忙,这个属性比较难.难在它的创建方式.
//首先她是一个引用数据类型.然后就是他的赋值方式
//很显然使用的类.属性的方式,该属性一定是静态的.
//那么这个属性引用了什么呢.来看Status类.
private Status status = Status.FREE;
public Status getStatus() {
return status;
}
public void setStatus(Status status) {
this.status = status;
}
private Equipment equipment;
public Programmer() {
}
public Programmer(int id, String name, int age, double salary, Equipment equipment) {
//super关键字指的是当前对象父类的特征.如果需要父类的某些成员(不能是私有的),可以通过
//super调用.
super(id, name, age, salary);
this.equipment = equipment;
}
public Equipment getEquipment() {
return equipment;
}
public void setEquipment(Equipment equipment) {
this.equipment = equipment;
}
@Override
public String toString() {
//现在还体会不到details方法的作用,在下一级就能体会到了.因为下面要
//根据对象的不同来输出 "程序员"就这一点变动.其实这里这里可以定义一个变量存放这个字符串的
//然后就只需要重写toString()不需要拼的这么辛苦.
//equipment.getDescription();我们之前在Equipment接口讲过这个方法的作用就是输出不同类的
//字符创拼接结果,使用的是多态.
return details() +"t程序员"+"t"+status.getNAME()+"ttttt"+equipment.getDescription();
}
}
package domain;
public class Designer extends Programmer{
//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() {
}
public double getBonus() {
return bonus;
}
public void setBonus(double bonus) {
this.bonus = bonus;
}
@Override
public String toString() {
//这里就体会到了.details的作用了.其实details应该放在Programer.会更好.
return details() +"t设计师"+"t"+getStatus().getNAME()+"ttt"+bonus+"t"+getEquipment().getDescription();
}
}
package domain;
public class Architect extends Designer{
//股票数量
private int stock;
public Architect() {
}
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 details()+"t"+"架构师"+"t"+ getStatus().getNAME()+"t"+getBonus()+"t"+stock+"t"+getEquipment().getDescription();
}
}
package service;
package 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"}
};
}
package service;
public class Status {
private final String NAME;
//私有化构造器,外部不能创建对象.
private Status(String name) {
this.NAME = name;
}
//其实就是单例模式.不同的是单例模式静态的是方法,它这里静态的是属性.
//final 只针对的变量只在当前作用域生效.
public static final Status FREE = new Status("FREE");
public static final Status VOCATION = new Status("VOCATION");
public static final Status BUSY = new Status("BUSY");
public String getNAME() {
return NAME;
}
@Override
public String toString() {
return NAME;
}
}
package service;
import domain.PC;
import domain.*;
import static service.Data.*;
public class NameListService {
private Employee[] employees;
//我们在空参构造中将数组赋值,并且不在提供其他构造,方便每次new NameListService()只有一个数组
//这个数组的值同时也被确定好了.
public NameListService() {
//首先确定好数组的长度.
employees = new Employee[EMPLOYEES.length];
//这些变量定义在后面的循环外面是为了节约内存,不用每次循环都要定义一次.
//为什么明明是局部变量但没赋值又不会报错呢,因为下面每次使用前都赋值了,不存在没赋值就使用的情况.
int type;
int id;
String name;
int age;
double salary;
double bonus;
//遍历的这一步我当出看实例代码才想到,因为要将Data中的数据取出来,就必须遍历一个一个取出来赋值.
//我们定义的数组是Employee类型,只能存入Employee对象,所以现在目标只有一个就是创建Employee对象
//使用Data中的数据给Employee对象赋值.
for (int i = 0; i < EMPLOYEES.length; i++) {
//得到二维数组EMPLOYEES每个一维中的第一个作为员工的类型.
//我们刚才观察Data数据可知.每个数组二维的第一数据确定类型.那么我们就将他取出来作为类型
//同时我们还知道Data中有常量表示这些类型,那好办了.
//因为都是字符串,而我们的常量是int型,所以需要使用包装类相关知识中的字符串转基本数据类型
//包装类.parsexxx().
type = Integer.parseInt(EMPLOYEES[i][0]);
//下面这四个数据都是Employee类以及其子类有的属性.所以也取出来.
//这里不方便使用两层循环,因为转换方式不一样.干脆直接用一层,内层就根据实际来.
id = Integer.parseInt(EMPLOYEES[i][1]);
name = EMPLOYEES[i][2];
age = Integer.parseInt(EMPLOYEES[i][3]);
salary = Double.parseDouble(EMPLOYEES[i][4]);
//然后根据我们的类型创建相应的对象.一一赋值.
switch (type) {
case EMPLOYEE:
employees[i] = new Employee(id, name, age, salary);
break;
case PROGRAMMER:
//到这里的下面就需要Equipment对象了.因为有这个属性.这里不方便直接取出Data中的
//Equipment对象进行赋值.所以我们创建一个方法返回Equipment对象即可.
employees[i] = new Programmer(id, name, age, salary, creatEq(i));
break;
case DESIGNER:
//根据类型的需要,也就是子类多一些属性.自定义变量.为什么不用担心空指针,比如
//EMPLOYEES[i][5]没有5之类的.因为根据类型来,Data中的数据已经定义好了.不会出现这种情况.
bonus = Double.parseDouble(EMPLOYEES[i][5]);
employees[i] = new Designer(id, name, age, salary, creatEq(i), bonus);
break;
case ARCHITECT:
bonus = Double.parseDouble(EMPLOYEES[i][5]);
int stock = Integer.parseInt(EMPLOYEES[i][6]);
employees[i] = new Architect(id, name, age, salary, creatEq(i), bonus, stock);
break;
}
}
}
private Equipment creatEq(int i) {
int key = Integer.parseInt(EQUIPMENTS[i][0]);
String model;
String display;
Equipment equipment;
double price;
String name;
String type;
switch (key) {
case PC:
model = EQUIPMENTS[i][1];
display = EQUIPMENTS[i][2];
equipment = new PC(model, display);
break;
case NOTEBOOK:
model = EQUIPMENTS[i][1];
price = Double.parseDouble(EQUIPMENTS[i][2]);
equipment = new NoteBook(model, price);
break;
case PRINTER:
name = EQUIPMENTS[i][1];
type = EQUIPMENTS[i][2];
equipment = new Printer(name, type);
break;
default:
equipment = null;
}
return equipment;
}
public Employee[] getAllEmployees() {
return employees;
}
public Employee getEmployee(int id) throws TeamException {
for (int i = 0; i < EMPLOYEES.length; i++) {
if (id==employees[i].getId()){
return employees[i];
}
}
throw new TeamException("该员工不存在");
}
}
package service;
public class TeamException extends Exception {
//系列化版本号
static final long serialVersionUID = -33875169124229948L;
public TeamException() {
}
public TeamException(String message) {
super(message);
}
}
package service;
import domain.Architect;
import domain.Designer;
import domain.Employee;
import domain.Programmer;
public class TeamService {
// counter为静态变量，用来为开发团队新增成员自动生成团队中的唯一ID，
// 即memberId。（提示：应使用增1的方式）
private static int counter = 1;
//表示开发团队最大成员数
private final int MAX_MEMBER = 5;
//用来保存当前团队中的各成员对象,使用创建对象来当属性,说明外部
//如果创建当前类TeamService的对象,该对象的属性中有个Programmer[].
//无论怎么 *** 作都是同一个数组.想不懂可以画内存图.
private Programmer[] team = new Programmer[MAX_MEMBER];
//记录团队成员的实际人数
private int total = 0;
public int getTotal() {
return total;
}
public Programmer[] getTeam() {
return team;
}
//往团队中增加成员
public void addMember(Employee e) throws TeamException {
if (total >= MAX_MEMBER) {
throw new TeamException("成员已满，无法添加");
}
//走到这,说明人员没满.
if (!(e instanceof Programmer)) {
throw new TeamException("该成员不是开发人员，无法添加");
}
//走到这说明是开发人员.那么下一步可以强转成开发人员,而且必定成功.
Programmer p = (Programmer)e;
if (Status.BUSY.equals(p.getStatus())){
throw new TeamException("该员工已在本开发团队中");
}
//走到这说明他不在开发团队当中.
if(Status.VOCATION.equals(p.getStatus())){
throw new TeamException("该员正在休假，无法添加");
}
//走到这该开发人员一定是空闲的.那么就看团队目前情况了.
//我们可以统计一下里面有多少架构师,设计师以及开发人员
int countA=0,countD=0,countP=0;
for (int i = 0; i < total; i++) {
if(team[i] instanceof Architect){
countA++;
}
if(team[i] instanceof Designer){
countD++;
}
}
//因为如果是架构师,设计师也会被判定为true.
countD=countD-countA;
countP=total-countA-countD;
//如果传进来的是架构师.
if(p instanceof Architect) {
if (countA > 0) {
throw new TeamException("团队中至多只能有一名架构师");
}
}else if(p instanceof Designer){
if(countD>1){
throw new TeamException("团队中至多只能有两名设计师");
}
}else{
if(countP>2){
throw new TeamException("团队中至多只能有三名程序员");
}
}
//走到这了,那说明都满足条件.可以添加.
//先将memberId设置为1,然后将counter++,变成2.方便下一个添加进来的.
p.setMemberId(counter++);
//将索引为0也就是第一个位置给p,然后将索引往后推1.
team[total++] = p;
//加进去后将p的状态改为BUSY.因为是同一对象.在内存中都是指向同一个属性.
//所以先后顺序没影响.
p.setStatus(Status.BUSY);
}
//删除团队成员
public void removeMember(int memberId) throws TeamException {
for (int i = 0; i < total; i++) {
if(memberId == team[i].getMemberId()){
//如果找到了该成员,先改为空闲,然后后面的成员往前覆盖.
team[i].setStatus(Status.FREE);
//total表示的是实际人数,total-1才是索引.
for (int j = i; j < total -1; j++) {
team[j] = team[j+1];
}
//最后一个置空.
team[--total] = null;
}
}
throw new TeamException("删除失败，原因：找不到该成员，无法删除");
}
}
package view;
package view;
import java.util.*;
public class TSUtility {
private static Scanner scanner = new Scanner(System.in);
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;
}
public static void readReturn() {
System.out.print("按回车键继续...");
readKeyBoard(100, true);
}
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;
}
public static char read/confirm/iSelection() {
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;
}
}
```java
package view;
import domain.Employee;
import domain.Programmer;
import service.NameListService;
import service.TeamException;
import service.TeamService;
public class TeamView {
//这里将对象作为属性,那么在当前类就会只有一个,怎么 *** 作都是 *** 作同一个.
//这个是之前存放Data数据的Employee[];
NameListService listSvc = new NameListService();
//这个是Programmer[] team.
TeamService teamSvc = new TeamService();
//同理,声明在外面的变量,是为了不在循环里重复声明.
Employee employee;
char key = '0';
int id;
char yn;
//主界面显示及控制方法。
public void enterMainMenu() {
//声明它作为一个标记,方便结束循环.
boolean isFlag = true;
while (isFlag) {
//这个挺巧妙的,如果你们运行会发现,展示开发团队后并没有再次输出列表.
if (key != '1') {
System.out.println("-------------------------------开发团队调度软件--------------------------n");
System.out.println("IDt姓 名t年龄t工资tt职位tt状态tt奖金tt股票tt领用设备");
listAllEmployees();
}
System.out.println("-------------------------------------------------------------------------");
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): ");
key = TSUtility.readMenuSelection();
System.out.println();
//将接收的结果直接作为选择的值.
switch (key) {
case '1':
getTeam();
break;
case '2':
addMember();
break;
case '3':
deleteMember();
break;
case '4':
System.out.print("确认是否退出(Y/N)：");
yn = TSUtility.read/confirm/iSelection();
if (yn == 'Y') {
isFlag = false;
}
break;
}
}
}
//以表格形式列出公司所有成员
public void listAllEmployees() {
Employee[] aE = listSvc.getAllEmployees();
for (Employee list : aE) {
System.out.println(list);
}
}
//显示团队成员列表 *** 作
public void getTeam() {
System.out.println("--------------------团队成员列表---------------------n");
Programmer[] team = teamSvc.getTeam();
if (teamSvc.getTotal() != 0) {
System.out.println("TID/IDt姓名t年龄t工资t职位t奖金t股票");
//这里不能用for-each因为只能遍历total,如果遍历全部会出现空指针.
for (int i = 0; i < teamSvc.getTotal(); i++) {
//return id+ "t" + name + "t"+age+"t"+salary;
//details()+"t"+"架构师"+"t"+ getStatus().getNAME()+"t"+getBonus()+"t"+stock
System.out.println(" "+ team[i].getMemberId()+"/"+team[i]);
}
} else {
System.out.println("开发团队目前没有成员！");
}
}
//实现添加成员操作
public void addMember() {
System.out.println("---------------------添加成员---------------------");
System.out.print("请输入要添加的员工ID：");
id = TSUtility.readInt();
//之前这里要抛异常对吧,现在统一处理.如果要抛异常,那么通过自定义异常类的对象.getMessage()输出
//自定义的语句.
try {
employee = listSvc.getEmployee(id);
teamSvc.addMember(employee);
System.out.println("添加成功");
} catch (TeamException e) {
System.out.println("添加失败:");
System.out.println(e.getMessage());
}
TSUtility.readReturn();
}
//实现删除成员操作
public void deleteMember() {
System.out.println("---------------------删除成员---------------------");
System.out.print("请输入要删除员工的TID：");
id = TSUtility.readInt();
System.out.print("确认是否删除(Y/N)：");
yn = TSUtility.read/confirm/iSelection();
if(yn=='Y'){
try {
teamSvc.removeMember(id);
} catch (TeamException e) {
System.out.println(e.getMessage());
}
}
}
}
```java
package view;
public class TeamViewTest {
public static void main(String[] args) {
TeamView teamView = new TeamView();
teamView.enterMainMenu();
}
}
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