T1.完成理工超市系统的商品类及其子类的定义，实现“浏览商品”及“查看商品详情”功能

（1）商品类

public class Goods {public String name;public double price;public  int count;public String desc;public Goods(String name, double price, int count){this.name=name;this.price=price;this.count=count;}@Overridepublic String toString() {return  this.name+"\t"+this.price+"\t"+this.count;}public  void detail(){System.out.println("商品名称"+this.name);System.out.println("商品价格"+this.price);System.out.println("商品库存"+this.count);System.out.println("商品描述"+this.desc);}
}

（2）浏览商品部分代码

private static String[] goods=new String[50];private static double[] prices=new double[50];private static int[] count=new int[50];public static void goodslist(Scanner input){System.out.println("商品列表");System.out.println("==========================");System.out.println("编号\t 商品名称\t 单价\t 数量\t");for (int i = 0; i <3 ; i++) {System.out.println((i+1)+"\t"+goodlist[i].name+"\t"+goodlist[i].price+"\t"+goodlist[i].count);}System.out.println("==================================");}public static void initial(){Goods m17=new Goods("小米手机7",1999,10);m17.desc="小米7将采用刘海屏设计，搭载Synaptics和Goodix的屏下指纹方案，有蓝色和黑色等颜色";goodlist[0]=m17;Goods m18=new Goods("小米手机8",2199,10);m18.desc="搭载骁龙845处理器，拥有红外人脸识别、双频GPS等技术，具备AI双摄、光学变焦和光学防抖等功能";goodlist[1]=m17;Goods honor=new Goods("华为荣耀",2699,5);honor.desc="搭载了华为海思自主研发的植桥920芯片。该芯片基于28nm工艺制造，采用8核big.little GTS架构";goodlist[2]=honor;}
}

（3）查看商品详情部分代码

 case 4:System.out.println("查看商品详情");System.out.println("请输入需要查看的商品编号");int goodNum= input.nextInt();while(goodNum<1||goodNum>3){System.out.println("当前输入的商品编号不合法，请重新输入");goodNum= input.nextInt();}goodlist[goodNum-1].detail();continue;

（4）运行截图

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