/**
* 扩展那个可序列化的Person类，让它能以一个集合保存某个人的朋友信息。
* 构造出一些Person对象，让他们中的一些人成为朋友，然后将Array[Person]保存到文件。将这个数组从文件中重新读出来，校验朋友关系是否完好
*/
import collection.mutable.ArrayBuffer
import java.io.{ObjectInputStream, FileOutputStream, FileInputStream, ObjectOutputStream}
class Person(var name:String) extends Serializable{
val friends = new ArrayBuffer[Person]()
def addFriend(friend : Person){
friends += friend
}
override def toString() = {
var str = "My name is " + name + " and my friends name is "
friends.foreach(str += _.name + ",")
str
}
}
object Test extends App{
val p1 = new Person("Ivan")
val p2 = new Person("F2")
val p3 = new Person("F3")
p1.addFriend(p2)
p1.addFriend(p3)
println(p1)
val out = new ObjectOutputStream(new FileOutputStream("person.obj"))
out.writeObject(p1)
out.close()
val in = new ObjectInputStream(new FileInputStream("person.obj"))
val p = in.readObject().asInstanceOf[Person]
println(p)
}
