技術標籤：初學者練手小專案java

快遞E棧

下面展示一些 內聯程式碼片。

import java.util.Random;
import java.util.Scanner;

public class ExpressService {
    /**
     * 快遞E棧服務
     */
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        //接收資料型別
        Random random = new Random();
 

        //隨機數
        boolean a = true;
        boolean b = true;
        int index = 0;
        //次數索引
        int[] number = new int[20];
        String[] company = new String[20];
        int[] code = new int[20];
        //快遞資料
        while (b) {
            System.out.println("======歡迎使用新職課快遞櫃======"
 
);
            System.out.println("請輸入您的身份：1-快遞員1，2-使用者,3-退出，其他返回");
            int user = scanner.nextInt();
            //使用者類別
            if (user == 1) {
                System.out.println("請選擇操作：1-存快遞，2-刪除快遞，3-修改快遞資訊，4-檢視快遞");
                int select = scanner.nextInt();
                //快遞員操作選項
 

                switch (select) {
                    case 1:
                        while (a) {
                            System.out.println("請輸入快遞號");
                            int inputNumber = scanner.nextInt();
                            System.out.println("請輸入公司名");
                            String inputCompany = scanner.next();
                            int inputCode = random.nextInt(999);
                            //999以內隨機數
                            number[index] = inputNumber;
                            company[index] = inputCompany;
                            code[index] = inputCode;
                            System.out.println("快遞已存入，取件碼是："+code[index]);
                            index++;
                            System.out.println("是否繼續 y/n");
                            String goOn = scanner.next();
                            if (goOn.equals("y")) {
                                a = true;
                            } else {
                                a = false;
                            }
                        }
                        break;
                        //存快遞
                    case 2:
                        boolean isDelete = false;
                        System.out.println("請輸入要刪除的快遞單號: ");
                        int deleteNumber = scanner.nextInt();
                        for (int i = 0; i < number.length; i++) {
                            if (number[i] == deleteNumber) {
                                number[i] = 0;
                                company[i] = "";
                                code[i] = 0;
                                isDelete = true;
                                break;
                            }
                        }
                        if (isDelete) {
                            System.out.println("刪除成功");
                        } else {
                            System.out.println("未找到快遞");
                        }
                        break;
                        //刪除快遞
                    case 3:
                        boolean isUpdate = false;
                        System.out.println("請輸入要修改的快遞單號: ");
                        int update = scanner.nextInt();
                        for (int i = 0; i < number.length; i++) {
                            if (number[i] == update) {
                                System.out.println("請輸入要修改的快遞單號: ");
                                int updateNumbr = scanner.nextInt();
                                System.out.println("請輸入要修改的快遞單號: ");
                                String updateCompany = scanner.next();
                                number[i] = updateNumbr;
                                company[i] = updateCompany;
                                isUpdate = true;
                                break;
                            }
                        }
                        if (isUpdate) {
                            System.out.println("修改成功");
                        } else {
                            System.out.println("未找到快遞");
                        }
                        break;
                        //修改快遞資訊
                    case 4:
                        System.out.println("所有快遞資訊如下：");
                        System.out.println("快遞單號\t公司名稱\t取件碼");
                        for (int i = 0; i < number.length; i++) {
                            if (number[i] != 0) {
                                System.out.println(number[i] + "\t     " + company[i] + "\t     " + code[i]);
                            }
                        }
                        break;
                        //查詢快遞資訊
                    default:
                        System.out.println("輸入錯誤請重新輸入");
                        break;
                }
            } else if (user == 2) {
                System.out.println("請輸入取件碼：");
                int goodsCode = scanner.nextInt();
                //取件碼
                boolean isGet = false;
                for (int i=0;i<code.length;i++) {
                    if (code[i] == goodsCode) {
                        number[i] = 0;
                        company[i] = "";
                        code[i] = 0;
                        isGet = true;
                        break;
                    }
                }
                if (isGet) {
                    System.out.println("取件成功");
                } else {
                    System.out.println("未找到快遞");
                }
            //使用者取件
            }else if (user == 3) {
                System.out.println("服務結束，再見！");
                break;
                //退出
            }else {
                continue;
            }


        }
    }
}

還有很多需要補充的內容，例如存快遞，快遞號的檢驗，不能重複等。。。大家有興趣自己修改或者留言探討