请教一个default的构造方法有关的问题
麻烦先看一下代码，注意Blip2的构造方法，将对象Blip2序列化之后，反序列化的时候会报异常，如果Blip2的构造方法是public的就没有问题，请问这个怎么解释呢？
import java.io.*;
class Blip2 implements Externalizable {
Blip2() {
System.out.println("Blip2 Constructor");
}
@Override
public void writeExternal(ObjectOutput out) throws IOException {
System.out.println("Blip2.writeExternal");
}
@Override
public void readExternal(ObjectInput in) throws IOException,
ClassNotFoundException {
System.out.println("Blip2.readExternal");
}
}
public class Blips {
public static void main(String[] args) throws FileNotFoundException, IOException, ClassNotFoundException {
System.out.println("Constructing objects:");
Blip2 b2 = new Blip2();
ObjectOutputStream o = new ObjectOutputStream(new FileOutputStream("Blips.out"));
System.out.println("Saving object:");
o.writeObject(b2);
o.close();
ObjectInputStream in = new ObjectInputStream(new FileInputStream("Blips.out"));
System.out.println("Recovering b2:");
b2 = (Blip2) in.readObject();
}
}
[解决办法]
