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這篇文章將為大家詳細(xì)講解有關(guān)如何利用java實(shí)現(xiàn)一個(gè)客戶信息管理系統(tǒng),小編覺(jué)得挺實(shí)用的,因此分享給大家做個(gè)參考,希望大家閱讀完這篇文章后可以有所收獲。
類(lèi)圖:
Customer類(lèi):
public class Customer { /** * @name 客戶姓名 * @sex 性別 * @age 年齡 * @phone 電話號(hào)碼 * @email 郵箱 */ private String name; private String sex; private int age; private String phone; private String email; public Customer(){}; public Customer(String name,String sex,int age,String phone,String email){ this.name=name; this.sex=sex; this.age=age; this.phone=phone; this.email=email; } public String getName(){ return this.name; } public void setName(String name){ this.name=name; } public String getSex(){ return this.sex; } public void setSex(String sex){ this.sex=sex; } public String getPhone(){ return phone; } public void setPhone(String phone){ this.phone=phone; } public int getAge(){ return this.age; } public void setAge(int age){ this.age=age; } public String getEmail(){ return this.email; } public void setEmail(String email){ this.email=email; } }
CustomerList 類(lèi):
public class CustomerList { private Customer [] customers; private static int total = 0; /** * 構(gòu)造器初始化對(duì)象數(shù)組 * @param totalCustmoers 客戶的總數(shù) */ public CustomerList(int totalCustmoers){ customers = new Customer[totalCustmoers]; } /** * 增加客戶 * @param customer 客戶 * @return 返回是否添加成功 */ public boolean addCustomer(Customer customer){ if(customer!=null&&total<customers.length) {customers[total]=customer; total++; return true;} else { return false;} } /** *替換 * @param index 指定的客戶的編號(hào) * @param cust 修改的客戶 * @return 返回是否修改成功 */ public boolean replaceCustomer(int index,Customer cust){ if(index>=0 && index <total ) { customers[index]=cust;return true; } else { return false; } } /** *刪除客戶 * @param index 指定的客戶的編號(hào) * @return 返回是否刪除成功 */ public boolean deleteCustomer(int index){ if(index<customers.length) { for(int i=index;i<total-1;i++) { customers[i]=customers[i+1];/**把數(shù)據(jù)往前挪動(dòng)*/ } customers[total-1]=null; total--;/**存儲(chǔ)的數(shù)據(jù)的總數(shù)-1*/ return true; } else { return false; } } /** * 展現(xiàn)客戶的信息 * @param index * @return 返回客戶 */ public Customer getCustomer(int index){ if(index>=0 && index<total) {return customers[index];} else { return null; } } /** * 獲取所有的客戶 * @return 客戶 */ public Customer[] getAllCustomers(){ Customer [] cust = new Customer[total];/**新建一個(gè)數(shù)組來(lái)接收原數(shù)組的數(shù)據(jù)*/ for(int i=0;i<total;i++){ cust[i]=customers[i]; } return cust; } /** * 得到客戶的總數(shù) * @return */ public int getTotal(){ return total; } }
CustomerVIew類(lèi):
public class CustomerView { private CustomerList customerList = new CustomerList(10); /** * 顯示主菜單 */ public void enterMainMenu(){ while(true) {System.out.println("-------------------客戶信息管理軟件-------------------"); System.out.println("1 "+"添加客戶"); System.out.println("2 "+"修改客戶"); System.out.println("3 "+"刪除客戶"); System.out.println("4 "+"客戶列表"); System.out.println("5 "+"退 出"); System.out.println("-----------------------------------------------------"); Scanner input = new Scanner(System.in); int op = input.nextInt(); switch(op) { case 1 :this.addNewCustomer();break; case 2 :this.modifyCustomer();break; case 3 :this.deleteCustomer();break; case 4 :this.listAllCustomers();break; case 5 :System.exit(0);break; default: System.out.println("重新選擇功能");break; } } } /** * 增加客戶 */ private void addNewCustomer(){ /** * 從鍵盤(pán)處接收客戶數(shù)據(jù) */ System.out.println("-------------------添加客戶-------------------"); Scanner input = new Scanner(System.in); System.out.println("姓名:"); String name = input.next(); System.out.println("性別:"); String sex=input.next(); System.out.println("年齡:"); int age = input.nextInt(); System.out.println("電話號(hào)碼:"); String phone = input.next(); System.out.println("電子郵箱:"); String email = input.next(); /** * 對(duì)客戶數(shù)據(jù)進(jìn)行封裝 */ Customer person = new Customer(name,sex,age,phone,email); Boolean flag=customerList.addCustomer(person); if(flag) { System.out.println("-------------------添加成功-------------------"); } else { System.out.println("-------------------添加失敗-------------------"); } } /** * 修改客戶信息 */ private void modifyCustomer(){ System.out.println("-------------------修改客戶-------------------"); System.out.println("要修改的客戶id:"); Scanner input = new Scanner(System.in); int number = input.nextInt(); Customer customer = customerList.getCustomer(number); System.out.println("姓名:"+customer.getName()); String name = CMUtility.readString(5,customer.getName()); System.out.println("性別:"+customer.getSex()); String sex = CMUtility.readString(5,customer.getSex()); System.out.print("年齡(" + customer.getAge() + "):"); int age = CMUtility.readInt(customer.getAge()); System.out.print("電話(" + customer.getPhone() + "):"); String phone = CMUtility.readString(13, customer.getPhone()); System.out.print("郵箱(" + customer.getEmail() + "):"); String email = CMUtility.readString(15, customer.getEmail()); /**得到新的客戶數(shù)據(jù)*/ customer = new Customer(name,sex,age,phone,email); Boolean flag = customerList.replaceCustomer(number,customer); if(flag) { System.out.println("-------------------修改成功-------------------"); } else { System.out.println("-------------------修改失敗-------------------"); } } /** * 刪除客戶 */ private void deleteCustomer(){ System.out.println("-------------------刪除客戶-------------------"); System.out.println("要?jiǎng)h除的客戶id:"); Scanner input = new Scanner(System.in); int number = input.nextInt(); while(true){ System.out.println("退出(-1)"); if(number>=0 && number<customerList.getTotal()) { System.out.println("找到指定客戶"); } else if(number==-1) { return; } else { System.out.println("輸入錯(cuò)誤");break; }} System.out.println("是否確認(rèn)刪除該客戶?Y/N"); String ch = input.next(); char o = ch.charAt(0); if(o=='Y') { boolean flag = customerList.deleteCustomer(number); if(flag){ System.out.println("-------------------刪除成功-------------------"); } else { System.out.println("-------------------刪除失敗-------------------"); } } else{ return; } } /** * 獲取客戶列表 */ private void listAllCustomers(){ Customer [] customer=customerList.getAllCustomers(); if(customer.length==0) { System.out.println("沒(méi)有任何客戶數(shù)據(jù)"); } else{ for(int i=0;i< customer.length;i++) { System.out.println("姓名:"+customer[i].getName()+"\t"+"性別"+customer[i].getSex()+"\t"+"年齡:"+customer[i].getAge()+"\t"+"電話號(hào)碼:"+customer[i].getPhone()+"\t"+"電子郵箱:"+customer[i].getEmail()+"\t"); } }} public static void main(String[] args) { CustomerView co = new CustomerView(); co.enterMainMenu(); } }
工具類(lèi):
public class CMUtility { private static Scanner scanner = new Scanner(System.in); public static String readString(int limit) { return readKeyBoard(limit, false); } public static int readInt(int defaultValue) { int n; for (; ; ) { String str = readKeyBoard(2, true); if (str.equals("")) { return defaultValue; } try { n = Integer.parseInt(str); break; } catch (NumberFormatException e) { System.out.print("數(shù)字輸入錯(cuò)誤,請(qǐng)重新輸入:"); } } return n; }
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