《Java实战开发经典》第五章5.1

package test;class Address{    private String country;    private String province;    private String city;    private String street;    private String postnumber;    public Address(String country,String province,String city,String street,String postnumber){        System.out.println("这是一位来自"+country+province+city+street+postnumber+"的顾客");    }}public class LoginDemo02 {public static void main(String[] args) {    Address ad=new Address("中国","江苏省","南京市","点将台路","210031");    }}