/** @see java.io.Externalizable */
public void readExternal(ObjectInput in) throws IOException, java.lang.ClassNotFoundException {
super.readExternal(in);
string = (String) in.readObject();
pe = (PE) in.readObject();
}
/** @see java.io.Externalizable */
public void writeExternal(ObjectOutput out) throws IOException {
super.writeExternal(out);
out.writeObject(string);
out.writeObject(pe);
}