|
java程序模拟一个水果店水果入库系统，包含登录界面和入库卷面。具备如下功能： （1）店员在登录界面输入工号和密码。如果输入无路，则跳转入库界面，否则提示是输入工号错误还是密码错误，允许店员重新输入，直到输入正确或店员关闭登录窗口。可提前将工号和密码直接在代码中设定。 （2）店员可以在系统界面选择水果名称，输入水果重量，录入成本单价。例如可以选择苹果，系统自动显示苹果编号。入库时间，店员可手动输入苹果重量、成本单价，同样的也可以对葡萄等处理 （3）对库存中从来没有的水果，需手动添加编号、名称等信息 （4）入库界面应当显示当前入库明细，并实时更新系统库存、 （5）最后，店员确定入库明细无误，再确认，同时将最新库存自动存入文件fruitStorage.txt import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;
public class FruitStoreInventorySystem {
private static final String FRUIT_STORAGE_FILE = "fruitStorage.txt"; // 库存文件名
private static final String LOGIN_ID = "123456"; // 预设的工号
private static final String PASSWORD = "password"; // 预设的密码
private Map fruitInventory; // 水果库存
private Scanner scanner; // 用于接收用户输入的Scanner对象
public FruitStoreInventorySystem() {
fruitInventory = new HashMap();
scanner = new Scanner(System.in);
}
// 登录界面
public void login() {
System.out.println("欢迎使用水果店入库系统！");
System.out.print("请输入工号：");
String id = scanner.nextLine();
System.out.print("请输入密码：");
String password = scanner.nextLine();
if (id.equals(LOGIN_ID) && password.equals(PASSWORD)) {
System.out.println("登录成功！");
showInventory();
} else {
System.out.println("工号或密码错误，请重新输入！");
login();
}
}
// 入库界面
public void showInventory() {
while (true) {
System.out.println("-----------");
System.out.println("水果库存：");
for (String fruitId : fruitInventory.keySet()) {
Fruit fruit = fruitInventory.get(fruitId);
System.out.println("编号：" + fruitId + "，名称：" + fruit.getName() + "，重量：" + fruit.getWeight()
+ "，成本单价：" + fruit.getCostPrice());
}
System.out.println("-----------");
System.out.println("请选择操作：");
System.out.println("1. 录入水果入库");
System.out.println("2. 手动添加水果信息");
System.out.println("3. 确认入库明细并保存");
System.out.println("4. 退出系统");
int choice = getChoice(1, 4);
switch (choice) {
case 1:
enterFruitInventory();
break;
case 2:
addFruitManually();
break;
case 3:
confirmAndSave();
break;
case 4:
System.out.println("谢谢使用，再见！");
System.exit(0);
}
}
}
// 录入水果入库
public void enterFruitInventory() {
System.out.println("请选择水果名称：");
for (String fruitId : fruitInventory.keySet()) {
Fruit fruit = fruitInventory.get(fruitId);
System.out.println(fruitId + ". " + fruit.getName());
}
String fruitId = scanner.nextLine();
if (fruitInventory.containsKey(fruitId)) {
Fruit fruit = fruitInventory.get(fruitId);
System.out.print("请输入水果重量：");
double weight = getDoubleInput();
System.out.print("请输入成本单价：");
double costPrice = getDoubleInput();
LocalDateTime now = LocalDateTime.now();
String formattedDateTime = now.format(DateTimeFormatter.ofPattern("yyyy
fruit.setWeight(weight);
fruit.setCostPrice(costPrice);
fruit.setEntryTime(formattedDateTime);
System.out.println("成功录入水果入库信息：");
System.out.println("编号：" + fruitId);
System.out.println("名称：" + fruit.getName());
System.out.println("重量：" + fruit.getWeight());
System.out.println("成本单价：" + fruit.getCostPrice());
System.out.println("入库时间：" + fruit.getEntryTime());
} else {
System.out.println("水果编号不存在，请选择手动添加水果信息选项进行添加。");
}
}
// 手动添加水果信息
public void addFruitManually() {
System.out.println("请输入新水果的编号：");
String fruitId = scanner.nextLine();
if (fruitInventory.containsKey(fruitId)) {
System.out.println("编号已存在，请重新输入。");
return;
}
System.out.println("请输入新水果的名称：");
String fruitName = scanner.nextLine();
System.out.println("请输入新水果的重量：");
double weight = getDoubleInput();
System.out.println("请输入新水果的成本单价：");
double costPrice = getDoubleInput();
Fruit fruit = new Fruit(fruitName, weight, costPrice);
fruitInventory.put(fruitId, fruit);
System.out.println("成功添加新水果信息：");
System.out.println("编号：" + fruitId);
System.out.println("名称：" + fruit.getName());
System.out.println("重量：" + fruit.getWeight());
System.out.println("成本单价：" + fruit.getCostPrice());
}
// 确认入库明细并保存
public void confirmAndSave() {
System.out.println("确认入库明细并保存吗？（Y/N）");
String choice = scanner.nextLine();
if (choice.equalsIgnoreCase("Y")) {
saveFruitStorageToFile();
System.out.println("入库明细已保存至" + FRUIT_STORAGE_FILE + "文件。");
}
}
// 保存水果库存至文件
public void saveFruitStorageToFile() {
try (BufferedWriter writer = new BufferedWriter(new FileWriter(FRUIT_STORAGE_FILE))) {
for (String fruitId : fruitInventory.keySet()) {
Fruit fruit = fruitInventory.get(fruitId);
writer.write(fruitId + "," + fruit.getName() + "," + fruit.getWeight() + "," + fruit.getCostPrice()
+ "," + fruit.getEntryTime());
writer.newLine();
}
} catch (IOException e) {
System.out.println("保存文件失败：" + e.getMessage());
}
}
// 获取用户输入的整数选项
public int getChoice(int min, int max) {
int choice;
while (true) {
try {
choice = Integer.parseInt(scanner.nextLine());
if (choice >= min && choice |