用java编写详细代码：一个客户信息管理系统，包含个人客户（ IndividualCustomer）和企业客户（InstitutionalCustomer）两类信息并储存在某类集合中,主函数 编写向系统中添加客户（addCustomer）的方法，并从键盘输入具体客户的信息（要求 包括个人客户和企业客户）保存在某类集合（具体集合类自己选择）。 （4）编写从系统中输出客户（printCustomer）的方法，应用多态编程输出所有具体客户的信息。

好的，以下是代码：

import java.util.ArrayList;
import java.util.Scanner;

public class CustomerManagementSystem {
    public static void main(String[] args) {
        ArrayList<Customer> customers = new ArrayList<Customer>();
        Scanner scan = new Scanner(System.in);

        // 添加客户
        addCustomer(customers, scan);

        // 输出客户信息
        printCustomer(customers);
    }

    // 添加客户
    public static void addCustomer(ArrayList<Customer> customers, Scanner scan) {
        System.out.println("请输入客户类型（1：个人客户 2：企业客户）：");
        int type = scan.nextInt();
        Customer customer = null;

        if (type == 1) {
            customer = new IndividualCustomer();
            System.out.println("请输入姓名：");
            ((IndividualCustomer) customer).setName(scan.next());
            System.out.println("请输入性别：");
            ((IndividualCustomer) customer).setGender(scan.next());
            System.out.println("请输入年龄：");
            ((IndividualCustomer) customer).setAge(scan.nextInt());
            System.out.println("请输入电话号码：");
            ((IndividualCustomer) customer).setPhone(scan.next());
            System.out.println("请输入邮箱：");
            ((IndividualCustomer) customer).setEmail(scan.next());
        } else if (type == 2) {
            customer = new InstitutionalCustomer();
            System.out.println("请输入企业名称：");
            ((InstitutionalCustomer) customer).setCompanyName(scan.next());
            System.out.println("请输入联系人姓名：");
            ((InstitutionalCustomer) customer).setContactName(scan.next());
            System.out.println("请输入联系人电话号码：");
            ((InstitutionalCustomer) customer).setContactPhone(scan.next());
            System.out.println("请输入联系人邮箱：");
            ((InstitutionalCustomer) customer).setContactEmail(scan.next());
        } else {
            System.out.println("输入类型有误！");
            return;
        }

        customers.add(customer);
    }

    // 输出客户信息
    public static void printCustomer(ArrayList<Customer> customers) {
        for (Customer customer : customers) {
            customer.printInfo();
        }
    }
}

class Customer {
    public void printInfo() {}
}

class IndividualCustomer extends Customer {
    private String name;
    private String gender;
    private int age;
    private String phone;
    private String email;

    public void setName(String name) {
        this.name = name;
    }

    public void setGender(String gender) {
        this.gender = gender;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public void setPhone(String phone) {
        this.phone = phone;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public void printInfo() {
        System.out.println("客户类型：个人客户");
        System.out.println("姓名：" + name);
        System.out.println("性别：" + gender);
        System.out.println("年龄：" + age);
        System.out.println("电话号码：" + phone);
        System.out.println("邮箱：" + email);
    }
}

class InstitutionalCustomer extends Customer {
    private String companyName;
    private String contactName;
    private String contactPhone;
    private String contactEmail;

    public void setCompanyName(String companyName) {
        this.companyName = companyName;
    }

    public void setContactName(String contactName) {
        this.contactName = contactName;
    }

    public void setContactPhone(String contactPhone) {
        this.contactPhone = contactPhone;
    }

    public void setContactEmail(String contactEmail) {
        this.contactEmail = contactEmail;
    }

    public void printInfo() {
        System.out.println("客户类型：企业客户");
        System.out.println("企业名称：" + companyName);
        System.out.println("联系人姓名：" + contactName);
        System.out.println("联系人电话号码：" + contactPhone);
        System.out.println("联系人邮箱：" + contactEmail);
    }
}

这是一个简单的客户信息管理系统，可以添加个人客户和企业客户，并输出客户信息。其中使用了多态，即通过客户对象的printInfo()方法输出不同类型的客户信息。