Java学习

public class Person {
    public String name;
    public static String sex;
    public int age;

    public static void say(String content) {
        System.out.println(content);
    }

    public static void main(String[] args) {
        Person p = new Person();
        p.name = "java";
        p.age = 22;
        p.sex = "男";
        p.say("Hello World!");
        Person.say("Hello World!");
        Person.sex = "男";
        System.out.println(p.name);
        System.out.println(p.age);
        Person.say(p.name);
    }
}