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//定义商品类,包含名称,货号,单价,数量计价单位,金额
public
class
GoodsItem{
private
String name;
private
String id;
private
int
number;
private
String unit;
private
double
money;
//构造方法
public
GoodsItem(){}
GoodItem(String name,String id,
double
price
,
int
number,String unit,
double
money){
this
.name = name ;
this
.id= id;
this
.price = price;
this
.number = number;
this
.money = money;
}
//get/set 方法
public
String getName() {
return
name;
}
public
void
setName(String name) {
this
.name = name;
}
public
String getId() {
return
id;
}
public
void
setId(String id) {
this
.id = id;
}
public
double
getPrice() {
return
price;
}
public
void
setPrice(
double
price) {
this
.price = price;
}
public
int
getNumber() {
return
number;
}
public
void
setNumber(
int
number) {
this
.number = number;
}
public
double
getMoney() {
return
money;
}
public
void
setMoney(
double
money) {
this
.money = money;
}
}
//实现主干逻辑,main方法.
import
java.util.ArrayList;
import
java.util.Scanner;
public
class
ShoppingReceipt {
static
ArrayList<GoodItem>data =
new
ArrayList<GoodItem>();
public
static
void
main(String[] args) {
// TODO Auto-generated method stub
System.out.println(
"欢迎使用超市管理系统"
);
initData();
}
private
static
void
initData() {
// TODO Auto-generated method stub
GoodItem sls =
new
GoodItem(
"少林寺核桃"
,
"090115"
,
15.5
,
0
,
"个"
,
0
);
GoodItem shk =
new
GoodItem(
"尚康饼干"
,
"090027"
,
14.5
,
0
,
"个"
,
0
);
data.add(sls);
data.add(shk);
while
(
true
){
System.out.println(
"请输入你要进行的操作:1 输入购买数量 2 打印小票 3 退出"
);
Scanner sc =
new
Scanner(System.in);
int
optNumber = sc.nextInt();
switch
(optNumber){
case
1
:
enterNumber();
break
;
case
2
:
printReceipt();
case
3
:
System.out.println(
"欢迎下次光临"
);
System.exit(
0
);
default
:
System.out.println(
"请输入正确的数字!"
);
break
;
}
}
}
private
static
void
printReceipt() {
// TODO Auto-generated method stub
System.out.println(
"欢迎光临"
);
System.out.println(
"品名 售价 数量 单位 金额"
);
System.out.println(
"-------------------"
);
int
totalNumber =
0
;
double
totalMoney =
0
;
for
(
int
i =
0
; i < data.size(); i++) {
//依次获取每一个商品项
GoodItem g = data.get(i);
//打印商品项
System.out.println(
""
+g.getName()+g.getId()+
" "
+g.getPrice()+
" "
+g.getNumber()+
" + "
+g.getMoney());
//累加数量与金额
totalNumber += g.getNumber();
totalMoney += g.getMoney();
}
System.out.println(
"-------------------------------------------"
);
//票脚
System.out.println(
"共"
+data.size()+
"项商品"
);
System.out.println(
"共"
+totalNumber+
"件商品"
);
System.out.println(
"共"
+totalMoney+
"元"
);
System.out.println();
}
private
static
void
enterNumber() {
// TODO Auto-generated method stub
for
(
int
i =
0
;i<data.size();i++){
GoodItem thisGoods = data.get(i);
String thisGoodsName = thisGoods.getName();
System.out.println(
"请输入"
+thisGoodsName+
"的购买数量"
);
Scanner sc =
new
Scanner(System.in);
int
thisGoodsNumber =sc.nextInt();
double
thisGoodsMoney = thisGoods.getPrice()*thisGoodsNumber;
thisGoods.setNumber(thisGoodsNumber);
thisGoods.setMoney(thisGoodsMoney);
}
}
}
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本文转自 维度2018 51CTO博客，原文链接：http://blog.51cto.com/xinsz08/1940339，如需转载请自行联系原作者
