<s>
The	O
term	O
object-based	B-Application
language	I-Application
may	O
be	O
used	O
in	O
a	O
technical	O
sense	O
to	O
describe	O
any	O
programming	O
language	O
that	O
uses	O
the	O
idea	O
of	O
encapsulating	O
state	O
and	O
operations	O
inside	O
objects	O
.	O
</s>
<s>
Object-based	B-Application
languages	I-Application
need	O
not	O
support	O
inheritance	B-Language
or	O
subtyping	O
,	O
but	O
those	O
that	O
do	O
are	O
also	O
termed	O
object-oriented	B-Language
.	O
</s>
<s>
Object-based	B-Application
languages	I-Application
that	O
do	O
not	O
support	O
inheritance	B-Language
or	O
subtyping	O
are	O
usually	O
not	O
considered	O
to	O
be	O
true	O
object-oriented	B-Language
languages	I-Language
.	O
</s>
<s>
Examples	O
of	O
object-oriented	B-Language
languages	I-Language
,	O
in	O
rough	O
chronological	O
order	O
,	O
include	O
Simula	B-Language
,	O
Smalltalk	B-Application
,	O
C++	B-Language
(	O
which	O
object	O
model	O
is	O
based	O
on	O
Simula	B-Language
's	O
)	O
,	O
Objective-C	B-Language
(	O
which	O
object	O
model	O
is	O
based	O
on	O
Smalltalk	B-Application
's	O
)	O
,	O
Eiffel	B-Language
,	O
Xojo	B-Application
(	O
formerly	O
REALbasic	B-Application
)	O
,	O
Python	B-Language
,	O
Ruby	B-Language
,	O
Java	B-Language
,	O
Visual	B-Language
Basic	I-Language
.NET	I-Language
,	O
C#	B-Application
,	O
and	O
Fortran	O
2003	O
.	O
</s>
<s>
Examples	O
of	O
a	O
language	O
that	O
is	O
object-based	B-Application
,	O
but	O
not	O
object-oriented	B-Language
are	O
early	O
versions	O
of	O
Ada	B-Language
,	O
Visual	B-Language
Basic	I-Language
(	O
VB	O
)	O
,	O
JavaScript	B-Language
,	O
and	O
Fortran	O
90	O
.	O
</s>
<s>
These	O
languages	O
all	O
support	O
the	O
definition	O
of	O
an	O
object	O
as	O
a	O
data	O
structure	O
,	O
but	O
lack	O
polymorphism	B-Application
and	O
inheritance	B-Language
.	O
</s>
<s>
In	O
practice	O
,	O
the	O
term	O
object-based	B-Application
is	O
usually	O
applied	O
to	O
those	O
object-based	B-Application
languages	I-Application
that	O
are	O
not	O
also	O
object-oriented	B-Language
,	O
although	O
all	O
object-oriented	B-Language
languages	I-Language
are	O
also	O
object-based	B-Application
,	O
by	O
definition	O
.	O
</s>
<s>
Instead	O
,	O
the	O
terms	O
object-based	B-Application
and	O
object-oriented	B-Language
are	O
normally	O
used	O
as	O
mutually	O
exclusive	O
alternatives	O
,	O
rather	O
than	O
as	O
categories	O
that	O
overlap	O
.	O
</s>
<s>
Sometimes	O
,	O
the	O
term	O
object-based	B-Application
is	O
applied	O
to	O
prototype-based	B-Application
programming	I-Application
languages	I-Application
,	O
true	O
object-oriented	B-Language
languages	I-Language
that	O
lack	O
classes	O
,	O
but	O
in	O
which	O
objects	O
instead	O
inherit	O
their	O
code	O
and	O
data	O
directly	O
from	O
other	O
template	O
objects	O
.	O
</s>
<s>
An	O
example	O
of	O
a	O
commonly	O
used	O
prototype-based	B-Application
scripting	B-Language
language	I-Language
is	O
JavaScript	B-Language
.	O
</s>
<s>
Both	O
object-based	B-Application
and	O
object-oriented	B-Language
languages	I-Language
(	O
whether	O
class-based	O
or	O
prototype-based	B-Application
)	O
may	O
be	O
statically	O
type-checked	O
.	O
</s>
<s>
Statically	O
checking	O
prototype-based	B-Application
languages	I-Application
can	O
be	O
difficult	O
,	O
because	O
these	O
languages	O
often	O
allow	O
objects	O
to	O
be	O
dynamically	O
extended	O
with	O
new	O
behavior	O
,	O
and	O
even	O
to	O
have	O
their	O
parent	O
object	O
(	O
from	O
which	O
they	O
inherit	O
)	O
changed	O
,	O
at	B-Library
runtime	I-Library
.	O
</s>
<s>
Object-oriented	B-Language
language	I-Language
Object-based	B-Application
language	I-Application
Object-oriented	B-Language
languages	I-Language
support	O
all	O
of	O
the	O
features	O
of	O
object-oriented	B-Language
programming	I-Language
(	O
OOP	O
)	O
:	O
abstraction	B-Application
,	O
encapsulation	B-Application
,	O
inheritance	B-Language
,	O
polymorphism	B-Application
Object-based	B-Application
languages	I-Application
support	O
a	O
subset	O
of	O
the	O
features	O
of	O
OOP	O
,	O
such	O
as	O
polymorphism	B-Application
or	O
inheritance	B-Language
.	O
</s>
<s>
Examples	O
:	O
C++	B-Language
,	O
C#	B-Application
,	O
Java	B-Language
,	O
etc	O
.	O
</s>
