with regards to Class extending Object, should this error be possible?
error: clone() has protected access in Object
Class.clone();
^
Of course this sort of nit-picking is absolutely not constructive. I'm
just saying that if you're teaching the "Object Oriented" programming
paradigm, there are better choices than Java. Java is a really difficult
language for the beginner. How many professional Java programmers can work
without an IDE? Compare that to the same metric for any scripting
language.
-Justin.
P.S.
error: clone() has protected access in Object
System.out.println(Class.clone().toString());
^
On Thu, Feb 21, 2013 at 11:45 AM, Ethan Gruber <[log in to unmask]> wrote:
> Look, I'm sure we can list the many ways different languages fail to meet
> our expectations, but is this really a constructive line of conversation?
>
> -1
>
>
> On Thu, Feb 21, 2013 at 12:40 PM, Justin Coyne
> <[log in to unmask]>wrote:
>
> > I did misspeak a bit. You can override static methods in Java. My major
> > issue is that there is no "getClass()" within a static method, so when
> the
> > static method is being run in the context of the inheriting class it is
> > unaware of its own run context.
> >
> > For example: I want the output to be "Hi from bar", but it's "Hi from
> foo":
> >
> > class Foo {
> > public static void sayHello() {
> > hi();
> > }
> > public static void hi() {
> > System.out.println("Hi from foo");
> > }
> > }
> >
> > class Bar extends Foo {
> >
> > public static void hi() {
> > System.out.println("Hi from bar");
> > }
> > }
> >
> > class Test {
> > public static void main(String [ ] args) {
> > Bar.sayHello();
> > }
> > }
> >
> >
> > -Justin
> >
> >
> >
> > On Thu, Feb 21, 2013 at 11:18 AM, Eric Hellman <[log in to unmask]> wrote:
> >
> > > OK, pedant, tell us why you think methods that can be over-ridden are
> > > static.
> > > Also, tell us why you think classes in Java are not instances of
> > > java.lang.Class
> > >
> > >
> > > On Feb 18, 2013, at 1:39 PM, Justin Coyne <[log in to unmask]>
> > > wrote:
> > >
> > > > To be pedantic, Ruby and JavaScript are more Object Oriented than
> Java
> > > > because they don't have primitives and (in Ruby's case) because
> classes
> > > are
> > > > themselves objects. Unlike Java, both Python and Ruby can properly
> > > > override of static methods on sub-classes. The Java language made
> many
> > > > compromises as it was designed as a bridge to Object Oriented
> > programming
> > > > for programmers who were used to writing C and C++.
> > > >
> > > > -Justin
> > > >
> > >
> >
>
