java宠物商店管理系统 Java实现宠物商店管理系统
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一、实验目的
1.掌握java类的继承、多态等的基本概念;
2.掌握简单的信息管理系统的设计与实现。
二、实验环境
实验建议在安装了以下软件的计算机上完成:
1. Windows xp/win7/win8/win10操作系统
2. JDK 1.6以上版本
3. Eclipse或NetBeans IDE或EditPlus或其它开发工具
三、实验内容与要求
(一) 问题描述
要求采用java面向对象的基本知识,实现宠物商店管理系统。
(二) 实验要求
1、宠物商店有狗和猫两种动物,请为这两种动物创建各自的类,而且它们都继承宠物类,为这些类定义基本的属性和方法;
2、为宠物商店也创建一个类,该类有基本属性,比如商店名称等,还有宠物笼子的属性,此外,还具备一些方法,比如:买进宠物、销售宠物、清点宠物库存、销售统计和盈利情况等;
3、实现买进宠物的方法,输入狗或猫的基本属性和进货价格,并把该买进的宠物放进宠物笼子;
4、实现销售宠物的方法,输入狗或猫的基本属性和销售价格,并把宠物从宠物笼子取出;
5、实现清点宠物库存方法,列出所有库存的宠物清单;
6、实现销售和盈利统计,查询所有已销售的宠物清单,包括进货价格和销售价格,还有总利润;
四、实现提示
1. 宠物笼子采用数组实现,数组的数据类型为宠物类;
2. 销售清单也采用数组实现。
五、代码
Pet类
public class Pets { private String color; //颜色 private int age; //年龄 private String sex; //性别 private String kind; private double inPrice; //进货价格 private double outPrice; //销售价格 private double profit; //盈利 public Pets(String color, int age, String sex) { this.color = color; this.age = age; this.sex = sex; } public Pets() { } public String getKind() { return kind; } public void setKind(String kind) { this.kind = kind; } public double getProfit() { return profit; } public void setProfit(double profit) { this.profit = profit; } public String getSex() { return sex; } public void setSex(String sex) { this.sex = sex; } public String getColor() { return color; } public void setColor(String color) { this.color = color; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } public double getInPrice() { return inPrice; } public void setInPrice(double inPrice) { this.inPrice = inPrice; } public double getOutPrice() { return outPrice; } public void setOutPrice(double outPrice) { this.outPrice = outPrice; } }
Cat类
public class Cat extends Pets{ public Cat(String color, int age, String sex) { super(color, age, sex); } public Cat() { } }
Dog类
public class Dog extends Pets{ public Dog(String color, int age, String sex) { super(color, age, sex); } public Dog() { } }
PetsStore类
import java.util.Scanner; import java.util.Date; public class PetsStore { Scanner input = new Scanner(System.in); private String name; private Cat[] cats; private Dog[] dogs; private Pets[] pets; private int dogFoot = 0; // 狗的当前长度 private int catFoot = 0; //猫的当前长度 private int petFoot = 0; private int num = 0; //库存数量 private int inNum = 0; //进货数量 private int outNum = 0; //销售数量 public PetsStore(int len) { if (len > 0) { this.cats = new Cat[len]; // 开辟数组大小 this.dogs = new Dog[len]; this.pets = new Pets[len]; } else { this.dogs = new Dog[1]; // 至少开辟一个空间 this.cats = new Cat[1]; this.pets = new Pets[1]; } } public String getName() { return name; } public void setName(String name) { this.name = name; } public void add() { // 添加的是一个宠物 System.out.println("您添加的是狗还是猫?\n" + "1.狗 2.猫"); String choice = input.next(); if(choice.equals("1")) { Dog dog = new Dog(); System.out.println("请输入您要添加的宠物的信息"); System.out.print("颜色:"); dog.setColor(input.next()); System.out.print("年龄:"); dog.setAge(input.nextInt()); System.out.print("性别:"); dog.setSex(input.next()); System.out.print("进货价格:"); dog.setInPrice(input.nextDouble()); System.out.print("出售价格:"); dog.setOutPrice(input.nextDouble()); if(dogFoot < dogs.length) { dogs[dogFoot] = dog; dogFoot++; System.out.println("添加成功!"); inNum++; num++; } else { System.out.println("添加失败!"); } } else if(choice.equals("2")) { if(catFoot < cats.length) { Cat cat = new Cat(); System.out.println("请输入您要添加的宠物的信息"); System.out.print("颜色:"); cat.setColor(input.next()); System.out.print("年龄:"); cat.setAge(input.nextInt()); System.out.print("性别:"); cat.setSex(input.next()); System.out.print("进货价格:"); cat.setInPrice(input.nextDouble()); System.out.print("出售价格:"); cat.setOutPrice(input.nextDouble()); cats[catFoot] = cat; catFoot++; System.out.println("添加成功!"); inNum++; num++; } else { System.out.println("添加失败!"); } } else { System.out.println("没有这个选项,请重新输入!"); } } public void print() { Date date = new Date(); System.out.println("===============宠物商店库存清单==============="); System.out.println("*******************C A T S*******************"); System.out.println("Color Age Sex InPrice OutPrice"); for (int i = 0; i < cats.length; i++) { if (cats[i] != null) { System.out.println(cats[i].getColor() + "\t" + cats[i].getAge() + "\t" + cats[i].getSex() + "\t" + cats[i].getInPrice() + "\t" + cats[i].getOutPrice()); } } System.out.println("\n*******************D O G S*******************"); System.out.println("Color Age Sex InPrice OutPrice"); for (int i = 0; i < dogs.length; i++) { if (dogs[i] != null) { System.out.println(dogs[i].getColor() + "\t" + dogs[i].getAge() + "\t" + dogs[i].getSex() + "\t" + dogs[i].getInPrice() + "\t" + dogs[i].getOutPrice()); } } System.out.println("============================================="); System.out.println("date: " + date); } public void sell() { if(num == 0) { System.out.println("库存为零,请及时购进宠物!\n"); } else { System.out.println("您要出售的是猫还是狗?\n" + "1.猫 2.狗"); String choice = input.next(); if(choice.equals("1")) { System.out.println("请输入您要出售的猫的特征"); System.out.print("颜色:"); String color1 = input.next(); System.out.print("年龄:"); int age1 = input.nextInt(); System.out.print("性别:"); String sex1 = input.next(); int i, flag = catFoot; for(i = 0; i < catFoot; i++) { if(color1.equals(cats[i].getColor()) && age1 == cats[i].getAge() && sex1.equals(cats[i].getSex())) { flag = i; break; } } if(i == catFoot) { System.out.println("查无此猫!请核对后重新输入 \n"); sell(); } else { pets[petFoot] = cats[i]; pets[petFoot].setKind("cat"); petFoot++; for(int j = flag; j < catFoot; j++) { cats[j] = cats[j + 1]; } System.out.println("售出成功!\n"); catFoot -= 1; //不减1会报数组越界的错误 outNum++; num--; } } else if(choice.equals("2")) { System.out.println("请输入您要出售的狗的特征"); System.out.print("颜色:"); String color1 = input.next(); System.out.print("年龄:"); int age1 = input.nextInt(); System.out.print("性别:"); String sex1 = input.next(); int i, flag = dogFoot; for(i = 0; i < dogFoot; i++) { if(color1.equals(dogs[i].getColor()) && age1 == dogs[i].getAge() && sex1.equals(dogs[i].getSex())) { flag = i; break; } } if(i == dogFoot) { System.out.println("查无此狗!请核对后重新输入 "); sell(); } else { pets[petFoot].setKind("dog"); pets[petFoot] = dogs[i]; petFoot++; for(int j = flag; j < catFoot; j++) { dogs[j] = dogs[j + 1]; } System.out.println("售出成功!\n"); dogFoot -= 1; //不减1会报数组越界的错误 outNum++; num--; } } else { System.out.println("没有这个选项,请重新输入!"); } } } public void note() { Date date = new Date(); System.out.println("===============宠物商店销售记录清单==============="); System.out.println("Kind Color Age Sex InPrice OutPrice"); for(int i = 0; i < pets.length; i++) { if(pets[i] != null) { System.out.println(pets[i].getKind() + "\t" + pets[i].getColor() + "\t" + pets[i].getAge() + "\t" + pets[i].getSex() + "\t" + pets[i].getInPrice() + "\t" + pets[i].getOutPrice()); } } System.out.println("================================================="); System.out.println("date: " + date); } public void profitNote() { Date date = new Date(); System.out.println("===========宠物商店盈利情况==========="); double cost = 0.0; double income = 0.0; double myProfit = 0.0; for(int i = 0; i < pets.length; i++) { if(pets[i] != null) { cost += pets[i].getInPrice(); income += pets[i].getOutPrice(); } } myProfit = income - cost; System.out.println("成本:" + cost + "\n" + "总收入:" + income + "\n" + "利润:" + myProfit); if(myProfit > 0) { System.out.println("恭喜,您的店处于盈利状态!"); } else { System.out.println("很遗憾,您的店处于亏损状况!"); } System.out.println("======================================="); System.out.println("date: " + date); } public int getOutNum() { return outNum; } public int getInNum() { return inNum; } public int getNum() { return num; } }
Main类
import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner input = new Scanner(System.in); PetsStore store = new PetsStore(100); System.out.print("请为您的宠物商店取个名字:"); store.setName(input.nextLine()); System.out.println("您好!" + store.getName() + "的店长,欢迎使用宠物商店管理系统!"); String choice = "1"; while(choice.equals("0") == false) { System.out.println("==========宠物商店管理系统=========="); System.out.println("1.查看库存\n" + "2.添加宠物\n" + "3.出售宠物\n" + "4.查看盈利\n" + "5.销售记录\n" + "0.退出程序"); System.out.println("==================================="); System.out.print("请输入你的选择:"); choice = input.next(); switch(choice) { case "1": store.print(); System.out.println("请问您还需要什么服务?"); break; case "2": String choice1 = "1"; do { store.add(); System.out.println("是否继续添加?\n" + "1.是 2.否"); choice1 = input.next(); } while(choice1.equals("1")); System.out.println("请问您还需要什么服务?"); break; case "3": String choice2 = "1"; do { store.sell(); System.out.println("是否继续出售?\n" + "1.是 2.否"); choice2 = input.next(); } while(choice2.equals("1")); System.out.println("请问您还需要什么服务?"); break; case "4": store.profitNote(); System.out.println("请问您还需要什么服务?"); break; case "5": store.note(); System.out.println("请问您还需要什么服务?"); break; case "0": System.out.println("谢谢您的使用,欢迎下次再来!\n" + "**********按任意键结束程序**********"); break; default: System.out.println("错误输入, 请重新输入!"); break; } } } }
没用很复杂的容器类,只适合萌新看的,大佬勿喷,完成作业还是不错的。
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