Java 代码封装客户信息 (ID、姓名、公司名称)

以下是一个返回客户 ID，客户姓名，公司名称，一共六个字段数据的 Java 代码：

public class Customer {
    private String customerId;
    private String customerName;
    private String companyName;

    public Customer(String customerId, String customerName, String companyName) {
        this.customerId = customerId;
        this.customerName = customerName;
        this.companyName = companyName;
    }

    public String getCustomerId() {
        return customerId;
    }

    public void setCustomerId(String customerId) {
        this.customerId = customerId;
    }

    public String getCustomerName() {
        return customerName;
    }

    public void setCustomerName(String customerName) {
        this.customerName = customerName;
    }

    public String getCompanyName() {
        return companyName;
    }

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

    @Override
    public String toString() {
        return 'Customer{' +
                'customerId=' + customerId + '\'
                + ', customerName=' + customerName + '\'
                + ', companyName=' + companyName + '\'
                + '}';
    }
}

使用方法：

Customer customer = new Customer('001', 'John Doe', 'ABC Inc.');
System.out.println(customer.getCustomerId());
System.out.println(customer.getCustomerName());
System.out.println(customer.getCompanyName());