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Functional but not immutable | 166 comments | Create New Account
Comments belong to whoever posts them. Please notify us of inappropriate comments.
I wish I had spotted this earlier.
Authored by: Anonymous on Monday, April 30 2012 @ 07:04 AM EDT
Note that the package hierarchy may specify some of the inheritance hierarchy.

For instance java.io.IOException must be a java.Exception (there's probably some
more package bits in there, but I can't remember them offhand). Not just that
it must implement all the methods of a java.Exception, it must *be* a
java.Exception, or it won't work.

[ Reply to This | Parent | # ]

Functional but not immutable
Authored by: Anonymous on Monday, April 30 2012 @ 04:55 PM EDT

>you cannot change one letter otherwise it is no longer the Channel Interface

You have an idea there, but your statement should not be taken too literally.

package java.nio.channels;
public interface Channel extends java.io.Closeable {
  public boolean isOpen();
  public void close() throws java.io.IOException;
}
has several letters changed, but works just as well.

[ Reply to This | Parent | # ]

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