java控制台购物系统java购物系统

package com.shop; import java.util.ArrayList; import java.util.Iterator; import java.util.LinkedHashMap; import java.util.List; import java.util.Map; import java.util.Map.Entry; //商店类 public class Shop { public Shop(int i) { if(i==1){ id = "1"; name ="ShopA"; goods = new LinkedHashMap<String,Goods>(); Goods mGoods = new Goods(); mGoods.setId("001"); mGoods.setName("Apple"); mGoods.setPrice(2.0); goods.put("001",mGoods); mGoods = new Goods(); mGoods.setId("002"); mGoods.setName("Pear"); mGoods.setPrice(2.5); goods.put("002",mGoods); mGoods = new Goods(); mGoods.setId("003"); mGoods.setName("Banana"); mGoods.setPrice(1.5); goods.put("003",mGoods); mGoods = new Goods(); mGoods.setId("004"); mGoods.setName("Mango"); mGoods.setPrice(3.0); goods.put("004",mGoods); mGoods = new Goods(); mGoods.setId("005"); mGoods.setName("Strawberry"); mGoods.setPrice(4.0); goods.put("005",mGoods); mGoods = new Goods(); mGoods.setId("006"); mGoods.setName("Cheery"); mGoods.setPrice(5.0); goods.put("006",mGoods); }else if(i==2){ id = "2"; name ="ShopB"; goods = new LinkedHashMap<String,Goods>(); Goods mGoods = new Goods(); mGoods.setId("001"); mGoods.setName("Apple"); mGoods.setPrice(2.5); goods.put("001",mGoods); mGoods = new Goods(); mGoods.setId("002"); mGoods.setName("Pear"); mGoods.setPrice(2.0); goods.put("002",mGoods); mGoods = new Goods(); mGoods.setId("003"); mGoods.setName("Banana"); mGoods.setPrice(1.0); goods.put("003",mGoods); mGoods = new Goods(); mGoods.setId("004"); mGoods.setName("Mango"); mGoods.setPrice(3.2); goods.put("004",mGoods); mGoods = new Goods(); mGoods.setId("005"); mGoods.setName("Strawberry"); mGoods.setPrice(4.1); goods.put("005",mGoods); mGoods = new Goods(); mGoods.setId("006"); mGoods.setName("Cheery"); mGoods.setPrice(4.5); goods.put("006",mGoods); } } private String id;//商店id private String name;//商店名称 private Map<String,Goods> goods; public String getId() { return id; } public void setId(String id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public Map<String, Goods> getGoods() { return goods; } public void setGoods(Map<String, Goods> goods) { this.goods = goods; } public void printMessage(){ System.out.println("Welcome you to "+name); System.out.println("fruits supermarket"); System.out.println("id\t fruits\t price\t"); Iterator keys = goods.entrySet().iterator(); while(keys.hasNext()) { Map.Entry entry =(Map.Entry)keys.next(); String key=(String)entry.getKey(); Goods value=(Goods)entry.getValue(); System.out.println(String.format("%s\t %s\t %g", value.getId(),value.getName(),value.getPrice())); } } public Goods getGoods(String id) { return goods.get(id); } }