Java编程，编写一个person类，包含名字（name),年龄（age),号码（number)三个属性。定义构造属性。

Question

然后定义random（）名字年龄号码，储存到object array里面，然后fileIO到.txt格式下。
怎么做？。。现在一直卡在怎么把不同属性的类存到object array里面
储存到object array里面，然后把储存的objecy array,fileIO打印到.txt格式下

Answer 1

先定义一个Object数组 Object[] obj = new Object[10];
然后将生成的类放进数组中 obj[i]= new Person();
将数组写到txt文件中要用到对象输入输出流，最好给Person类重写toString方法

Answer 2

Dog.java

public class Dog {
private String name;
private String color;
private int age;
public Dog() {
}
public Dog(String name, String color, int age) {
this.name = name;
this.color = color;
this.age = age;
}
public void show() {
System.out.println("name:" + this.name);
System.out.println("color:" + this.color);
System.out.println("age:" + this.age);
}
}

DogTest.java

public class DogTest {
public static void main(String[] args) {
Dog dog1 = new Dog("大黑", "黑", 2);
Dog dog2 = new Dog("小白", "白", 1);
dog1.show();
dog2.show();
}

}
// try...

Answer 3

//现在一直卡在怎么把不同属性的类存到object array里面
public static Object[] random(){
Person one = new Person("张三",18,"123456");
Person two = new Person("李四",21,"654321");
List array = new ArrayList();
array.add(one);
array.add(two);
return array.toArray();
}