Object IO 与 Serializable

object 流：直接将object写入或读出(必须将兑现序列化)

import java.io.*;

public class TestObjectIO {
public static void main(String args[]) throws Exception {
   T t = new T();
   t.k = 8;
   FileOutputStream fos = new FileOutputStream("d:/share/java/io/testobjectio.dat");
   ObjectOutputStream oos = new ObjectOutputStream(fos);
   oos.writeObject(t);
   oos.flush();
   oos.close();
  
   FileInputStream fis = new FileInputStream("d:/share/java/io/testobjectio.dat");
   ObjectInputStream ois = new ObjectInputStream(fis);
   T tReaded = (T)ois.readObject();
   System.out.println(tReaded.i + " " + tReaded.j + " " + tReaded.d + " " + tReaded.k);
  
}
}

class T
implements Serializable
{
int i = 10;
int j = 9;
double d = 2.3;
transient int k = 15;
}