本次考核项目部分

package com.company;import java.util.Scanner;
class admin extends Person implements operate
{
 public admin()
{
 super(); 
}
 Scanner sc = new Scanner(System.in); 
 public void operate()
{
 System.out.println(“请输入确认操作:”); 
 int i =sc.nextInt();
 switch (i)
{
 case 1: select(goods);
 break; 
 case 2: add(goods); break; 
case 3: delete(goods); 
break;
 case 4: modify(goods); break; 
default: System.out.println(“输入有误!”); 
break;
 }
 }
 public void select(commodity[]goods)
{
 System.out.println(“请输入名称进行查询:”); 
String name = sc.next(); 
if (name!=null)
{
 for (int i = 0;
i<goods.length;i++)
{
 if (goods[i].getName().equals(name))
{
 System.out.println(“有此商品”); 
System.out.println(“商品信息为:(编号-名称-价格-数量)”); System.out.println(goods[i].getId()+" “+goods[i].getName()+” “+goods[i].getPrice()+” "+goods[i].getNumber()); break;
 }
 while (i== goods.length-1)
{
 System.out.println(“暂时没有此商品！”); 
break;
}
 } 
}
else
{
 System.out.println(“暂时没有该商品！”);
 }
 }
 public void delete(commodity[]goods)
{
 System.out.println(“请输入要删除的商品:”);
 String str =sc.next(); 
if (str!=null)
{
 for (int i =0;i< goods.length;i++)
{
 if (goods[i].getName().equals(str))
{
 goods[i]=null; System.out.println(“删除成功！”); System.out.println(goods.length);
 break;
 }
 }
 }
 }
 public void add(commodity[]goods)
{
 System.out.println(“请输入商品编号:”);
 int id=sc.nextInt(); 
System.out.println(“请输入商品名称：”); 
String name =sc.next(); 
System.out.println(“请输入价格:”); 
int price=sc.nextInt();
 System.out.println(“请输入数量:”); 
int number=sc.nextInt();
 for (int i =0;i< goods.length;i++)
{
 if (goods[i].getId()!=0)
{
 goods[i].setId(id); 
goods[i].setName(name); 
goods[i].setPrice(price); 
goods[i].setNumber(number); 
System.out.println(“添加成功”); 
break; 
}
 }
 }
 public void modify(commodity[]goods)
{ System.out.println(“请输入要修改商品的名称：”); 
String a = sc.next(); 
for (int i =0;i<goods.length;i++)
{
 if (goods[i].getName().equals(a))
 {
 System.out.println(“请输入修改后的价格:”); 
int s = sc.nextInt();
 goods[i].setPrice(s); 
System.out.println(“修改成功！”); 
break;
 }
 }
 }
}