public class Demo2 {
public static Scanner sc = new Scanner(System.in);
public static String[] name = new String[4];// 姓名
public static int[] time = new int[4];// 送餐时间
public static String[] addess = new String[4];// 送餐地址
public static String[] orderMsg = new String[4];// 送餐内容
public static double[] orderPrices = new double[4];// 订餐的总价
public static String[] dishNames = { "万三肘子", "佛跳墙", "新疆烤全羊" };// 菜单
public static int[] price = { 88, 880, 812 };// 菜价
public static int[] prize = { 12, 34, 812 };// 点赞数
public static int[] status = new int[4];// 订单状态
public static void main(String[] args) {
name[0] = "张飞";
orderMsg[0] = "万三肘子一份";
time[0] = 11;
addess[0] = "工大";
orderPrices[0] = 88;
status[0] = 0;
name[1] = "张三";
orderMsg[1] = "佛跳墙一份";
time[1] = 12;
addess[1] = "北大青鸟";
price[1] = 880;
status[1] = 0;
System.out.println("***欢迎使用吃货联盟系统***");
to: do {
System.out.println("*************************************");
System.out.println("\t1:我要订餐");
System.out.println("\t2:查看餐袋");
System.out.println("\t3:签收订单");
System.out.println("\t4:删除订单");
System.out.println("\t5:我要点赞");
System.out.println("\t6:退出系统");
System.out.println("*************************************");
int num = inputIntNum(1, 6);
switch (num) {
case 1: {
function1();
break;
}
case 2: {
function2();
break;
}
case 3: {
function3();
break;
}
case 4: {
function4();
break;
}
case 5: {
function5();
break;
}
case 6: {
System.out.println("退出系统");
break to;
}
}
} while (true);
System.out.println("欢迎下次光临");
}
public static boolean function1() {
boolean isFull = false;
do {
isFull = false;
for (String i : name) {
if (i == null) {
isFull = true;
break;
}
}
if (!isFull) {
System.out.println("餐袋已满");
return isFull;
}
System.out.println("我要订餐");
System.out.println("*********菜品信息**********");
System.out.println("序号\t名称\t价格\t点赞");
for (int i = 0; i < dishNames.length; i++) {
System.out.println((i + 1) + "\t" + dishNames[i] + "\t" + price[i] + "\t" + prize[i]);
}
System.out.println("**************");
int index = inputIntNum(1, 3);
int dishNum = inputIntNum(1, 5);
String msg = dishNames[index - 1] + "," + dishNum + "份";
System.out.println("输入订餐人姓名:");
String orderName = sc.next();
System.out.println("输入订餐地址:");
String orderAdd = sc.next();
System.out.println("输入送餐地址:");
int orderTime = sc.nextInt();
double rate = (price[index - 1] * dishNum > 50) ? 0 : 5;
double orderPrice = price[index - 1] * dishNum + rate;
System.out.println("订餐信息具体如下:");
System.out.println("订餐人:+orderName");
System.out.println("订餐内容:" + msg);
System.out.println("订餐总价:" + orderPrice);
System.out.println("送餐费用:" + rate);
System.out.println("送餐时间:" + time);
System.out.println("送餐地址:" + orderAdd);
for (int i = 0; i < name.length; i++) {
if (name[i] == null) {
name[i] = orderName;
time[i] = orderTime;
orderMsg[i] = msg;
addess[i] = orderAdd;
orderPrices[i] = orderPrice;
System.out.println("订餐成功!");
break;
}
}
System.out.println("是否继续订餐(y/n):");
String ans = sc.next();
if (!ans.equals("y")) {
break;
}
if (!isFull) {
break;
}
} while (true);
return isFull;
}
public static int inputIntNum(int start, int end) {
int index = -1;
do {
System.out.println("请选择菜单序号:");
while (!sc.hasNext()) {
System.out.println("输入整数");
String sd = sc.next();
}
index = sc.nextInt();
if (index <= end && index >= start) {
break;
} else {
System.out.println("选项必须在" + start + "-" + end + "之间");
}
} while (true);
return index;
}
public static int inputIntNum1(int start, int end) {
int index = -1;
do {
System.out.println("输入购买几份:");
while (!sc.hasNext()) {
System.out.println("输入整数:");
String sd = sc.next();
}
index = sc.nextInt();
if (index <= end && index >= start) {
break;
} else {
System.out.println("选项必须在" + start + "-" + end + "之间");
}
} while (true);
return index;
}
public static void function2() {
System.out.println("序号\t姓名\t订餐内容\t\t总价\t送餐时间\t送餐地址\t送餐状态");
for (int i = 0; i < name.length; i++) {
if (name[i] != null) {
String st = "";
if (status[i] == 0) {
st = "未签收";
} else {
st = "已签收";
}
System.out.println((i + 1) + "\t");
System.out.println(name[i] + "\t");
System.out.println(orderMsg[i] + "\t");
System.out.println(orderPrices[i] + "\t");
System.out.println(time[i] + "\t");
System.out.println(addess[i] + "\t");
}
}
}
public static void function3() {
// 判断订单号的范围1-n
int end = 0;
for (String s : name) {
if (s != null) {
end++;
}
}
int start = 1;
if (end == 0) {
System.out.println("没有订单可签收");
return;
}
System.out.println(start + "==>" + end);
int index = inputIntNum(1, end);
for (int i = 0; i < name.length; i++) {
if (name[i] != null && index == (i + 1) && status[i] == 1) {
System.out.println("此订单已签收");
continue;
}
if (name[i] != null && index == (i + 1) && status[i] == 0) {
status[i] = 1;
System.out.println("订单签收成功");
break;
}
}
}
private static void function4() {
int end = 0;
for (String s : name) {
if (s != null) {
end++;
}
}
int start = 1;
if (end == 0) {
System.out.println("没有订单可删除");
return;
}
System.out.println(start + "==>" + end);
int index = inputIntNum(1, end);
boolean isFind = false;
for (int i = 0; i < name.length; i++) {
if (name[i] != null && index == (i + 1) && status[i] == 0) {
System.out.println("此选项没签收，不可删除");
continue;
}
if (name[i] != null && index == (i + 1) && status[i] == 1) {
isFind = true;
break;
}
}
if (isFind) {
for (int i = index - 1; i < name.length; i++) {
name[i] = name[i + 1];
time[i] = time[i + 1];
addess[i] = addess[i + 1];
orderMsg[i] = orderMsg[i + 1];
orderPrices[i] = orderPrices[i + 1];
status[i] = status[i + 1];
}
name[name.length - 1] = null;
time[time.length - 1] = 0;
addess[addess.length - 1] = null;
orderMsg[orderMsg.length - 1] = null;
orderPrices[orderPrices.length - 1] = 0;
status[status.length - 1] = 0;
System.out.println("删除成功");
}
}
private static void function5() {
System.out.println("*********点赞菜品信息************");
System.out.println("序号\t名称\t价格\t点赞");
for (int i = 0; i < dishNames.length; i++) {
System.out.println((i + 1) + "\t" + dishNames[i] + "\t" + price[i] + "\t" + prize[i]);
}
System.out.println("************************************");
int index = inputIntNum(1, dishNames.length);
prize[index - 1]++;
System.out.println("点赞成功");
}
}