Java的static的问题

Question

请问这个如果我要用static的的话，这里应该改成什么啊？

class Person 
{
    String name;//姓名
    int age;//年龄
    
    //String country;//国籍
    static String country;
    
    public Person(){
        
    }
    public Person(String name,int age) 
    {
        this.name = name;
        this.age = age;
    }
    
    public Person(String name,int age,String country) 
    {
        this.name = name;
        this.age = age;
        this.country = country;
    }
    
    public void show() 
    {
        System.out.println("姓名："+name+",年龄："+age+",国籍："+country);
    }
}

public class PersonDemo
{
    public static void main(String[] args) 
    {
        //创建对象1
        Person p1 = new Person("王者",16,"中国");
        p1.show();
        
        //创建对象2
        Person p2 = new Person("潘长江",42);
        p2.show();
        
        //创建对象3
        Person p3 = new Person("网红",20);
        p3.show();
        
        p3.country = "中国";
        p3.show();
        
        p1.show();
        p2.show();
    }
}

Answer 1

去掉this，入参名称修改成与static命名不一样的