请告诉我这个该怎么改

public class test {
    public static void main(String[] args) {
        Person p1 = new Person();
        Person p2 = new Person();

        p1.age = 18;
        p1.speak = "中文";
        p2.speak = "英文";

        System.out.println(p1.toString());
        System.out.println(p2.toString());
    }


    static class Person {
        int age;
        String name;
        String speak;

        public Person() {
        }

        public Person(int age, String name, String speak) {
            this.age = age;
            this.name = name;
            this.speak = speak;
        }

        @Override
        public String toString() {
            return "Person{" +
                    "age=" + age +
                    ", name='" + name + '\'' +
                    ", speak='" + speak + '\'' +
                    '}';
        }
    }
}

你需要定义一个Person类出来，Person中要有int 类型的age属性