访问修饰符的种类以及构造方法的重载
class Person{ public int age; public String name; public Person(){} public Person(int age,String name){ this.name=name; this.age=age; } } public class Dome{ public static void main(String[] args){ Person p1=new Person(); Person p2=new Person(23,"nifaf"); System.out.println(p1); System.out.println(p1); } }
方法的重载为 参数的个数跟类型不同;
构造方法也可以被重载;