面向对象05：构造器详解

package com.oop.demo02;

public class Person {
    String name;
    int age;
    public Person() {
    }

    public Person(String name) {
        this.name = name;
    }

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

package com.oop.demo02;

public class Application2 {
    public static void main(String[] args) {
        Person person = new Person();
        System.out.println(person.name);

        Person person1 = new Person("epfox");
        System.out.println(person1.name);
        System.out.println(person1.age);

        Person person2 = new Person("epfox",18);
        System.out.println(person2.name);
        System.out.println(person2.age);
    }
}