Java类和对象的基本使用方式

package Address;
import java.util.Scanner;

public class Address{
Scanner sc=new Scanner(System.in);
private String country; //国家
private String province; //省份
private int streetID; //街道编号
private int postID; //邮编
private String city; //城市
Address()
{
System.out.println("请输入国家:");
country=sc.next();
System.out.println("请输入省份：");
province=sc.next();
System.out.println("请输入城市：");
city=sc.next();
System.out.println("请输入邮政编码:");
postID=sc.nextInt();
System.out.println("请输入街道编码:");
streetID=sc.nextInt();
}
public String getCountry() {
return country;
}
public int getStreetID()
{
return streetID;
}
public int getPostID() {
return postID;
}
public String getCity() {
return city;
}
public String getProvince() {
return province;
}
public static void main(String args[])
{
Address a=new Address();
System.out.println(" 国家："+a.getCountry()+'\n'+" 省份："+a.getProvince()+'\n'+" 城市："+a.getCity()+'\n'
+" 街道编号："+a.getStreetID()+'\n'
+" 邮政编码："+a.getPostID());
}
}