对象数组的申明与创建

package com.zhang.review;

public class Demo01 {
    public static void main(String[] args) {
        Person[] ps=new Person[3];
        //-------------------声明对象数组--------------------
        //创建三个人并实例化
        Person p1=new Person("jerry",12);
        Person p2=new Person("jack",19);
        Person p3=new Person("mark",20);
        ps[0]=p1;//实例化数组元素
        ps[1]=p2;
        ps[2]=p3;
        System.out.println("-----------实例化数组成员-----------");
        for (int i = 0; i <ps.length ; i++) {
            System.out.println(ps[i]+" ");
            
        }




    }
}

 class Person {
     private String name;
     private int age;

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

     @Override
     public String toString() {
         return "Person [name=" + name + ", age=" + age + "]";//重写返回对象的格式
     }

 }