利用java实现一个客户信息管理系统
短信预约 -IT技能 免费直播动态提醒
用博客记录我自学的点点滴滴
类图：
Customer类:
public class Customer {
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 类:
public class CustomerList {
private Customer [] customers;
private static int total = 0;
public CustomerList(int totalCustmoers){
customers = new Customer[totalCustmoers];
}
public boolean addCustomer(Customer customer){
if(customer!=null&&total<customers.length)
{customers[total]=customer;
total++;
return true;}
else
{ return false;}
}
public boolean replaceCustomer(int index,Customer cust){
if(index>=0 && index <total )
{
customers[index]=cust;return true;
}
else
{
return false;
}
}
public boolean deleteCustomer(int index){
if(index<customers.length)
{
for(int i=index;i<total-1;i++)
{
customers[i]=customers[i+1];
}
customers[total-1]=null;
total--;
return true;
}
else
{
return false;
}
}
public Customer getCustomer(int index){
if(index>=0 && index<total)
{return customers[index];}
else {
return null;
}
}
public Customer[] getAllCustomers(){
Customer [] cust = new Customer[total];
for(int i=0;i<total;i++){
cust[i]=customers[i];
}
return cust;
}
public int getTotal(){
return total;
}
}
CustomerVIew类:
public class CustomerView {
private CustomerList customerList = new CustomerList(10);
public void enterMainMenu(){
while(true)
{System.out.println("-------------------客户信息管理软件-------------------");
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("-----------------------------------------------------");
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("重新选择功能");break;
}
}
}
private void addNewCustomer(){
System.out.println("-------------------添加客户-------------------");
Scanner input = new Scanner(System.in);
System.out.println("姓名:");
String name = input.next();
System.out.println("性别:");
String sex=input.next();
System.out.println("年龄:");
int age = input.nextInt();
System.out.println("电话号码:");
String phone = input.next();
System.out.println("电子邮箱:");
String email = input.next();
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("-------------------添加失败-------------------");
}
}
private void modifyCustomer(){
System.out.println("-------------------修改客户-------------------");
System.out.println("要修改的客户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("性别:"+customer.getSex());
String sex = CMUtility.readString(5,customer.getSex());
System.out.print("年龄(" + customer.getAge() + "):");
int age = CMUtility.readInt(customer.getAge());
System.out.print("电话(" + customer.getPhone() + "):");
String phone = CMUtility.readString(13, customer.getPhone());
System.out.print("邮箱(" + customer.getEmail() + "):");
String email = CMUtility.readString(15, customer.getEmail());
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("-------------------修改失败-------------------");
}
}
private void deleteCustomer(){
System.out.println("-------------------删除客户-------------------");
System.out.println("要删除的客户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("找到指定客户");
}
else if(number==-1)
{
return;
}
else
{
System.out.println("输入错误");break;
}}
System.out.println("是否确认删除该客户?Y/N");
String ch = input.next();
char o = ch.charAt(0);
if(o=='Y')
{
boolean flag = customerList.deleteCustomer(number);
if(flag){
System.out.println("-------------------删除成功-------------------");
}
else
{
System.out.println("-------------------删除失败-------------------");
}
}
else{
return;
}
}
private void listAllCustomers(){
Customer [] customer=customerList.getAllCustomers();
if(customer.length==0)
{
System.out.println("没有任何客户数据");
}
else{
for(int i=0;i< customer.length;i++)
{
System.out.println("姓名:"+customer[i].getName()+"\t"+"性别"+customer[i].getSex()+"\t"+"年龄:"+customer[i].getAge()+"\t"+"电话号码:"+customer[i].getPhone()+"\t"+"电子邮箱:"+customer[i].getEmail()+"\t");
}
}}
public static void main(String[] args) {
CustomerView co = new CustomerView();
co.enterMainMenu();
}
}
工具类：
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("数字输入错误，请重新输入：");
}
}
return n;
}
总结
到此这篇关于利用java实现一个客户信息管理系统的文章就介绍到这了,更多相关java客户信息管理系统内容请搜索编程网以前的文章或继续浏览下面的相关文章希望大家以后多多支持编程网！
免责声明：
① 本站未注明“稿件来源”的信息均来自网络整理。其文字、图片和音视频稿件的所属权归原作者所有。本站收集整理出于非商业性的教育和科研之目的，并不意味着本站赞同其观点或证实其内容的真实性。仅作为临时的测试数据，供内部测试之用。本站并未授权任何人以任何方式主动获取本站任何信息。
② 本站未注明“稿件来源”的临时测试数据将在测试完成后最终做删除处理。有问题或投稿请发送至: 邮箱/279061341@qq.com QQ/279061341
