day17：java基础-项目3---开发团队调度软件

• 需求说明
• 软件结构设计
• 代码实现

将员工的基本信息类，data放置在service包中

package myproject03.team.service;

//员工的基本信息
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 = {//通过switch-case的方式取值，不会出现数组角标越界的危险
        {"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"}
    };
}

工具类TSUtility放置在view包中

package myproject03.team.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;
    }
}

新建3个包view、service和domain。
1、在domain包中新建接口Equipment，类PC、NoteBook、Printer用于实现接口，创建设备。

//设备的接口
package myproject03.team.domain;
//设备的接口
public interface Equipment {
	public abstract String getDiscription();//实现接口时需要实现该抽象方法，是对设备的描述方法
}

package myproject03.team.domain;

public class PC implements Equipment{//设备PC
	private String model;//机器型号
	private String display;//显示器名称
	
	public PC() {//默认构造器
		super();
	}

	public PC(String model, String display) {//PC的带参构造器
		super();
		this.model = model;
		this.display = display;
	}
//参数的get/set方法
	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 getDiscription() {//用于输出设备的描述信息
		return model+"("+display+")";
	}
}

package myproject03.team.domain;

public class NoteBook implements Equipment{//设备NoteBook
	private String model;//机器型号
	private double price;//价格

	public NoteBook(String model, double price) {//带参构造器
		super();
		this.model = model;
		this.price = price;
	}
	public NoteBook() {
		super();
	}
	//参数的get/set方法
	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 getDiscription() {//用于输出设备的描述信息
		return model+"("+price+")";
	}
}

package myproject03.team.domain;

public class Printer implements Equipment{//设备Printer
	private String name;//机器型号
	private String type;//机器类型

	@Override
	public String getDiscription() {//用于输出设备的描述信息
		return name+"("+type+")";
	}
//参数的get/set方法
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getTape() {
		return type;
	}
	public void setTape(String tape) {
		this.type = tape;
	}
	public Printer() {
		super();
	}
	public Printer(String name, String tape) {
		super();
		this.name = name;
		this.type = tape;
	}
}

设备新建完成。
2、在domain包中新建员工类Employee，Employee为Programmer的父类，Programmer是Designer、Architect的父类。
即：程序员、设计师、架构师都是员工，且设计师和架构师都是程序员。

package myproject03.team.domain;

//员工类，为Programmer的父类，programmer是Designer、Architect的父类

public class Employee {

	private int id;//员工id
	private String name;//员工姓名
	private int age;//员工年龄
	private double salary;//员工薪资
	//参数的get/set方法
	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;
	}
	//构造函数
	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 String getDetails() {//输出员工的描述信息
		return id + "t" + name+ "t"+ age + "t" + salary;
	}
	@Override
	public String toString() {//重写Object的toString方法
		return getDetails();
	}
}

package myproject03.team.domain;

import myproject03.team.service.Status;

public class Programmer extends Employee{//程序员继承Employee类

	private int memberId;//开发团队中的ID
	private Status status = Status.FREE;//表示状态，默认为FREE
	private Equipment equipment;//所使用的设备
	//构造函数
	public Programmer() {
		super();
	}
	public Programmer(int id, String name, int age, double salary, Equipment equipment) {
		super(id, name, age, salary);
		this.equipment = equipment;
	}
	//参数的get/set方法
	public int getMemberId() {
		return memberId;
	}
	public void setMemberId(int memberId) {
		this.memberId = memberId;
	}
	public Status getStatus() {
		return status;
	}
	public void setStatus(Status stadus) {
		this.status = stadus;
	}
	public Equipment getEquipment() {
		return equipment;
	}
	public void setEquipment(Equipment equipment) {
		this.equipment = equipment;
	}
	
	//输出描述信息【注】程序员、设计师、架构师所输出的描述信息是不一样的
	@Override
	public String toString() {
		return getDetails() + "t程序员t" + status +"ttt" + equipment.getDiscription();
	}
	public String getTeambaseDetial() {
		return memberId + "/" + getId() + "t" +getName()+"t" + getAge() + "t" + getSalary();
	}
	public String getDetailForTeam() {
		return  getTeambaseDetial()+ "t程序员";
	}
}

在Service包中新建一个Status类，表示员工的状态，当员工处于FREE状态时，可以将其添加入开发团队，当员工处于BUSY或VOCATION状态时无法添加

package myproject03.team.service;


public class Status {//枚举类：有限个
	private final String NAME;
	
	private Status(String name) {//私有化构造器，不能在类外造对象（相当于单例，但是有三个）
		this.NAME = name;
		
	}
	
	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 NAME;
	}
	
	@Override
		public String toString() {//重写toString方法
			return NAME;
		}
}

在domain包中新建设计师类和架构师类

package myproject03.team.domain;

public class Designer extends Programmer {//设计师类继承Programmer

	private double bonus;//奖金
	//构造函数
	public Designer() {
		super();
	}
	public Designer(int id, String name, int age, double salary, Equipment equipment, double bonus) {
		super(id, name, age, salary, equipment);
		this.bonus = bonus;
	}
	//参数的get/set方法
	public double getBonus() {
		return bonus;
	}
	public void setBonus(double bonus) {
		this.bonus = bonus;
	}
	//输出描述信息
	@Override
	public String toString() {
		return getDetails() + "t设计师t" + getStatus() +"t" + bonus+ "tt" + getEquipment().getDiscription();
	}
	public String getDetailForTeam() {
		return getTeambaseDetial() + "t设计师"+getBonus();
	}
}

package myproject03.team.domain;

public class Architect extends Designer {//架构师类继承Designer类

	private int stock;//股票

	//构造函数
	public Architect() {
		super();
	}
	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;
	}
	
	//参数的get/set方法
	public int getStock() {
		return stock;
	}
	public void setStock(int stock) {
		this.stock = stock;
	}

	//输出描述信息
	public String getDetailForTeam() {
		return getTeambaseDetial() + "t架构师"+getBonus()+ "t" +getStock();
	}
	@Override
	public String toString() {
		return getDetails() + "t架构师t" + getStatus() +"t" + getBonus()+ "t" + stock+ "t" + getEquipment().getDiscription();
	}
}

3、在service包中新建NameListService类，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。

package myproject03.team.service;

import myproject03.team.domain.*;

import static myproject03.team.service.Data.*;

import org.omg.CORBA.PERSIST_STORE;



public class NameListService {
	
	private Employee[] employees;//用来保存公司所有员工对象
	//给employees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
//		2、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
//		3、将对象存于数组中
		employees = new Employee[EMPLOYEES.length];//Data.EMPLOYEES.length,因为导入了import static myproject03.team.service.Data.*; 可以省略Data
		
		for(int i=0;i 
其中，可以对NameListService进行测试，测试类如下：
 
package myproject03.team.service;

import org.junit.jupiter.api.Test;

import myproject03.team.domain.Employee;


public class NameListServiceTest {

	@Test
	public void testGetAllEmployees() {
		NameListService service = new NameListService();
		Employee[] employees =  service.getAllEmployees();
		for(int i=0;i 
接下来是自定义异常类，对输出或操作错误进行异常的捕获和输出处理
 
package myproject03.team.service;

public class TeamException extends Exception{
	static final long serialVersionUID = -338516993124229948L;
	
	public TeamException() {
		super();
	}
	public TeamException(String msg) {
		super(msg);
	}
}
 
package myproject03.team.service;

import myproject03.team.domain.Architect;
import myproject03.team.domain.Designer;
import myproject03.team.domain.Employee;
import myproject03.team.domain.Programmer;


public class TeamService {
	private static int counter = 1;//给memberId赋值
	private final int MAX_MEMBER = 5;//限制开发团队成员人数
	private Programmer[] team = new Programmer[MAX_MEMBER];//保存开发团队成员
	private int total;//记录开发团队实际的人数。
	
	public TeamService() {
		super();
	}
	
	
	
	public Programmer[] getTeam() {
		Programmer[] team = new Programmer[total];
		for(int i=0;i= 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(isExit(e)) {
			throw new TeamException("该员工已在本开发团队中");
		}
				//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ClassCastExcecption
		//p.getStatus().getNAME().equals("BUSY");
		if("BUSY".equalsIgnoreCase(p.getStatus().getNAME())) {
			throw new TeamException("该员工已是某团队成员");
		}else if("VOCATION".equalsIgnoreCase(p.getStatus().getNAME())){
			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
		
		
		//获取team已有的成员中架构师、设计师、程序员的人数
		int numOfArch=0 , numOfDes=0 , numOfPro=0;
		for(int i=0;i=1) {//当程序执行到这不满足时，会报出异常终止执行
				throw new TeamException("团队中至多只能有一名架构师");
			}
		}else if(p instanceof Designer){
			if(numOfDes>=2) {
				throw new TeamException("团队中至多只能有两名设计师");
			}
		}else if(p instanceof Programmer) {
			if(numOfPro>=3) {
				throw new TeamException("团队中至多只能有三名程序员");
			}
		}
		
		//错误的写法，当第一个if执行不通过时，会继续执行下一个else if() 导致异常
//		if(p instanceof Architect && numOfArch>1) {//同上
//			throw new TeamException("团队中至多只能有一名架构师");
//		}else if(p instanceof Designer && numOfDes>2){
//			throw new TeamException("团队中至多只能有两名设计师");
//		}else if(p instanceof Programmer && numOfPro>3) {
//			throw new TeamException("团队中至多只能有三名程序员");
//		}
		
		
		//将p（或e）添加到现有的team中。
		team[total] = p;
		total++;
		//p的属性赋值
		p.setStatus(Status.BUSY);
		p.setMemberId(counter++);
	}
	
	
	private boolean isExit(Employee e) {
		for(int i =0;i 
最后在view包中新建mian方法,包含程序的增删查询等操作
 
package myproject03.team.view;

import myproject03.team.domain.Employee;
import myproject03.team.domain.Programmer;
import myproject03.team.service.NameListService;
import myproject03.team.service.TeamException;
import myproject03.team.service.TeamService;

public class TeamView {
	private NameListService listSvc = new NameListService();
	private TeamService teamSvc = new TeamService();
	
	public void enterMainMenu() {
		
		boolean loopFlag = true;
		char menu=0;
		while(loopFlag) {
			if(menu != '1') {
				listAllEmployees();
			}
			
			System.out.print("1-团队列表 t 2-添加团队成员 t 3-删除团队成员 t 4-退出 t (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.read/confirm/iSelection();
				if(isExit == 'Y') {
					loopFlag = false;
					System.out.println("程序结束");
				}
				break;
			}
		}
	}

	
	public void listAllEmployees() {
//		System.out.println("显示公司所有的员工信息");
		System.out.println("-------------------------------开发团队调度软件--------------------------------");
		Employee[] employees =  listSvc.getAllEmployees();
		if(employees == null || employees.length == 0) {//像判断数组是否没有元素，不能直接XXX.lenght==0,要加判断XXX== null，防止空指针异常
			System.out.println("公司中没有员工信息！");
		}else {
			System.out.println("IDt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 
执行结果如下：