java实现简单的客户信息管理系统

本文实例为大家分享了java实现简单客户信息管理系统的具体代码，供大家参考，具体内容如下

全篇文章开源，源码供读者使用。这是一篇关于java的客户信息管理系统的文章，里面简单实现了数据库管理系统的基本功能，可以算是算笔者的学习笔记，也为大家学习提供便利。所以代码都是在一个包下完成的，所以没有使用导包的操作，省去了外卖project的申明，剩下的就写的文章里了。话不多说，看文章吧。首先给大家看一下总的操作界面（别看简单，里面的还是有东西的），后面就附上实现源码、要求和注释

Customer类

下面是关于Customer类的编写要求：

* PTrjaxPN用来封装客户的以下信息* Sting name* int age* char gender* Stirng phone* String email* 提供getset方法* 构造器自行设定

public class Customer {

private String name;

private int age;

private String gender;

private String phone;

private String email;

public Customer() {

}

public Customer(String name,int age,String gender,String phone,String email) {

this.name = name;

this.age = age;

this.gender = gender;

this.phone = phone;

this.email = email;

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public int getAge() {

return age;

}

public void setAge(int age) {

this.age = age;

}

public String getGender() {

return gender;

}

public void setGender(String gender) {

this.gender = gender;

}

public String getPhone() {

return phone;

}

public void setPhone(String phone) {

this.phone = phone;

}

public String getEmail() {

return email;

}

public void setEmail(String email) {

this.email = email;

}

}

CustomerList类

下面是关于CustomerList类的编写要求：

* CustomerList类的设计* Customer[] 用来保存客户信息* int total 用来保存当前存入客户数量* 该类至少提供以下的构造器和方法* public CustomerLIst(int totalCustomer);* public boolean addCustomer(Customer customer);* public boolean replaceCustomer(int index,Customer cust);* public boolean deleteCustomer(int index);* public Customer[] getallCustomer();* public Customer getCustomer(int index);* public int getToal();

public class CustomerList {

private static Customer customers[];

private static int total;

public CustomerList(int totalCustomer) {

customers = new Customer[totalCustomer];

}

// 添加客户

public boolean addCustomer(Customer customer) {

if(total >= customers.length) {

return false;

}

customers[total++] = customer;

http:// return true;

}

// 修改指定位置的客户信息

public boolean replaceCustomer(int index,Customer cust) {

if(index < 0 || index >= total) {

return false;

}

customers[index] = cust;

return true;

}

// 删除指定位置的客户

public boolean deleteCustomer(int index) {

if(index < 0 || index >= total) {

return false;

}

for(int i = index;i < total - 1;i++) {

customers[i] = customers[i+1];

}

customers[total - 1] = null;

total--;

return true;

}

// 得到所有客户的信息

public static Customer[] getallCustomer() {

Customer[] custs = new Customer[total];

for(int i = 0;i < total;i++) {

custs[i] = customers[i];

}

return custs;

}

// 得到指定客户的信息

public Customer getCustomer(int index) {

if(index < 0 || index >= total) {

return null;

}

return customers[index];

}

// 得到Customers中所有客户的个数

public static int getTotal() {

return total;

}

}

CustomerView类

CustomerView类的编写PTrjaxPN

* 主模块：用于用户界面的展示、与用户交互* CustomerList  customerList = new CustomerList(10) * 应含有的构造器和方法* private void enterMainMenue()* private void addNewCustomer()* private void modifyCustomer()* private void deleteCustomer()* private void listAllCustomers()* private static void main(String[] args)

public class CustomerView {

CustomerList customerList = new CustomerList(10);

public CustomerView() {

Customer customer = new Customer("王龙", 20, "Male", "18965391649", "465989777@qq.com");

customerList.addCustomer(customer);

}

// 用户主菜单

private void enterMainMenue() {

System.out.println("-----------------客户信息管理系统 --------------------");

System.out.println(" 1-添加客户");

System.out.println(" 2-修改客户");

System.out.println(" 3-删除客户");

System.out.println(" 4-客户列表");

System.out.println(" 5-退出");

System.out.println("请选择1-5:");

}

// 添加客户

private void addNewCustomer() {

// System.out.println("添加客户的操作");

System.out.println("-----------------添加客户-------------------------");

Scanner in = new Scanner(System.in);

System.out.print("姓名：");

String name = in.nextLine();

System.out.print("年龄：");

int age = in.nextInt();

System.out.print("性别：");

String gender = in.nextLine();

System.out.print("电话：");

String phone = in.nextLine();

System.out.print("邮箱：");

String email = in.nextLine();

// 将上述数据封装到Customer中

Customer customer = new Customer(name, age, gender, phone, email);

boolean isSuccess = customerList.addCustomer(customer);

if (isSuccess == true) {

System.out.println("---------------添加完成---------------------");

} else {

System.out.println("---------------客户目录已满，添加失败！---------------------");

}

}

// 修改客户

private void modifyCustomer() {

// System.out.println("修改客户的操作");

Scanner in = new Scanner(System.in);

Customer cust;

int num;

System.out.print("请选择待修改客户的编号（-1退出）：");

while (true) {

num = in.nextInt();

if (num == -1) {

return;

}

cust = customerList.getCustomer(num - 1);

if (cust == null) {

System.out.print("无法找到指定客户，请选择待修改客户的编号（-1退出）：");

} else {

break;

}

}

// 开始修改客户信息

System.out.print("姓名(" + cust.getName() + "):");

String name = in.nextLine();

System.out.print("性别(" + cust.getGender() + "):");

String gender = in.nextLine();

System.out.print("年龄(" + cust.getAge() + "):");

int age = in.nextInt();

System.out.print("电话(" + cust.getPhone() + "):");

String phone = in.nextLine();

System.out.print("邮箱(" + cust.getEmail() + "):");

String email = in.nextLine();

Customer cust2 = new Customer(name, age, gender, phone, email);

boolean isreplace = customerList.replaceCustomer(num - 1, cust2);

if (isreplace == true) {

System.out.println("---------------修改完成---------------------");

} else {

System.out.println("---------------修改失败---------------------");

}

}

// 删除用户

private void deleteCustomer() {

// System.out.println("删除客户的操作");

Scanner in = new Scanner(System.in);

int num;

System.out.println("------------------刪除客戶-----------------------");

while (true) {

System.out.println("输入要删除的客户的序号（-1退出）：");

num = in.nextInt();

if (num == -1) {

return;

}

Customer customer = customerList.getCustomer(num - 1);

if (customer == null) {

System.out.println("------------------刪除失败！-----------------------");

return;

}

// 执行删除操作

System.out.print("是否确认删除(y/n):");

char isdelete = in.nextLine().charAt(0);

if (isdelete == 'y') {

boolean is = customerList.deleteCustomer(num - 1);

if(is) {

System.out.println("------------------刪除成功-----------------------");

}else {

System.out.println("------------------刪除失败-----------------------");

}

}else {

break;

}

}

}

// 列出所有客户信息

private void listAllCustomers() {

System.out.println("---------------客户列表--------------------");

int total = CustomerList.getTotal();

if (total == 0) {

System.out.println("没有客户记录！");

} else {

System.out.println("编号\t姓名\t性别\t电话\t\t邮箱\t");

Customer custs[] = CustomerList.getallCustomer();

for (int i = 0; i < custs.length; i++) {

Customer cust = custs[i];

System.out.println((i + 1) + "\t" + cust.getName() + "\t" + cust.getGender() + "\t" + cust.getPhone()

+ "\t" + cust.getEmail());

}

}

System.out.println("---------------客户列表加载完成--------------------");

}

// 主函数

public static void main(String[] args) {

CustomerView view = new CustomerView();

Scanner in = new Scanner(System.in);

boolean isFlag = true;

while (isFlag) {

view.enterMainMenue();

char menu = in.nextLine().charAt(0);

switch (menu) {

case '1':

view.addNewCustomer();

break;

case '2':

view.modifyCustomer();

break;

case '3':

view.deleteCustomer();

break;

case '4':

view.listAllCustomers();

break;

case '5':

System.out.print("确认是否退出(y/n):");

char flag = in.nextLine().charAt(0);

if (flag == 'y') {

isFlag = false;

}

break;

}

// isFlag = false;

}

in.close();

}

}

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