<s>
NetRexx	B-Language
is	O
an	O
open	O
source	O
,	O
originally	O
IBM	O
's	O
,	O
variant	O
of	O
the	O
REXX	B-Language
programming	I-Language
language	I-Language
to	O
run	O
on	O
the	O
Java	B-Language
virtual	I-Language
machine	I-Language
.	O
</s>
<s>
It	O
supports	O
a	O
classic	O
REXX	B-Language
syntax	O
,	O
with	O
no	O
reserved	O
keywords	O
,	O
along	O
with	O
considerable	O
additions	O
to	O
support	O
object-oriented	B-Language
programming	I-Language
in	O
a	O
manner	O
compatible	O
with	O
Java	B-Language
's	O
object	B-Application
model	I-Application
,	O
yet	O
can	O
be	O
used	O
as	O
both	O
a	O
compiled	O
and	O
an	O
interpreted	O
language	O
,	O
with	O
an	O
option	O
of	O
using	O
only	O
data	O
types	O
native	O
to	O
the	O
JVM	B-Language
or	O
the	O
NetRexx	B-Language
runtime	O
package	O
.	O
</s>
<s>
The	O
latter	O
offers	O
the	O
standard	O
Rexx	B-Language
data	O
type	O
that	O
combines	O
string	O
processing	O
with	O
unlimited	O
precision	O
decimal	O
arithmetic	O
.	O
</s>
<s>
Integration	O
with	O
the	O
JVM	B-Language
platform	O
is	O
tight	O
,	O
and	O
all	O
existing	O
Java	B-Language
class	O
libraries	O
can	O
be	O
used	O
unchanged	O
and	O
without	O
special	O
setup	O
;	O
at	O
the	O
same	O
time	O
,	O
a	O
Java	B-Language
programmer	O
can	O
opt	O
to	O
just	O
use	O
the	O
Rexx	B-Language
class	O
from	O
the	O
runtime	O
package	O
for	O
improved	O
string	O
handling	O
in	O
Java	B-Language
syntax	O
source	O
programs	O
.	O
</s>
<s>
NetRexx	B-Language
is	O
free	O
to	O
download	O
from	O
the	O
Rexx	B-Language
Language	O
Association	O
.	O
</s>
<s>
IBM	O
announced	O
the	O
transfer	O
of	O
NetRexx	B-Language
3.00	O
source	O
code	O
to	O
the	O
Rexx	B-Language
Language	O
Association	O
(	O
RexxLA	O
)	O
on	O
June	O
8	O
,	O
2011	O
.	O
</s>
<s>
In	O
1995	O
Mike	O
Cowlishaw	O
ported	O
Java	B-Language
to	O
OS/2	O
and	O
soon	O
after	O
started	O
with	O
an	O
experiment	O
to	O
run	O
REXX	B-Language
on	O
the	O
JVM	B-Language
.	O
</s>
<s>
With	O
REXX	B-Language
generally	O
considered	O
the	O
first	O
of	O
the	O
general	O
purpose	O
scripting	O
languages	O
,	O
NetRexx	B-Language
is	O
the	O
first	O
alternative	O
language	O
for	O
the	O
JVM	B-Language
.	O
</s>
<s>
The	O
0.50	O
release	O
,	O
from	O
April	O
1996	O
,	O
contained	O
the	O
NetRexx	B-Language
runtime	O
classes	O
and	O
a	O
translator	O
written	O
in	O
REXX	B-Language
but	O
tokenized	O
and	O
turned	O
into	O
an	O
OS/2	O
executable	O
.	O
</s>
<s>
The	O
1.00	O
release	O
came	O
available	O
in	O
January	O
1997	O
and	O
contained	O
a	O
translator	O
bootstrapped	O
to	O
NetRexx	B-Language
.	O
</s>
<s>
Mike	O
Cowlishaw	O
left	O
IBM	O
in	O
March	O
2010	O
,	O
and	O
the	O
future	O
of	O
IBM	B-Language
NetRexx	I-Language
as	O
open	O
source	O
was	O
unknown	O
for	O
a	O
while	O
.	O
</s>
<s>
IBM	O
finally	O
announced	O
the	O
transfer	O
of	O
NetRexx	B-Language
source	O
code	O
to	O
the	O
Rexx	B-Language
Language	O
Association	O
(	O
RexxLA	O
)	O
on	O
June	O
8	O
,	O
2011	O
,	O
14	O
years	O
after	O
the	O
v1.0	O
release	O
.	O
</s>
<s>
IBM	O
released	O
the	O
NetRexx	B-Language
source	O
code	O
to	O
RexxLA	O
under	O
the	O
ICU	B-Application
license	O
.	O
</s>
<s>
RexxLA	O
shortly	O
after	O
released	O
this	O
as	O
NetRexx	B-Language
3.00	O
and	O
has	O
followed	O
up	O
with	O
regular	O
releases	O
,	O
with	O
4.01	O
(	O
2021-03-20	O
)	O
adding	O
Java	B-Language
Platform	I-Language
Module	I-Language
System	I-Language
support	O
to	O
support	O
Java	B-Language
versions	O
9	O
and	O
higher	O
.	O
</s>
<s>
the	O
ICU	B-Application
license	O
has	O
not	O
been	O
approved	O
by	O
OSI	O
;	O
it	O
appears	O
to	O
be	O
a	O
variant	O
of	O
the	O
Expat	B-License
License	I-License
.	O
</s>
<s>
The	O
syntax	O
and	O
object	B-Application
model	I-Application
of	O
NetRexx	B-Language
differ	O
from	O
Object	B-Application
REXX	I-Application
,	O
another	O
IBM	O
object-oriented	B-Language
variant	O
of	O
REXX	B-Language
which	O
has	O
been	O
released	O
as	O
open	B-Application
source	I-Application
software	I-Application
.	O
</s>
<s>
The	O
successor	O
ooREXX	B-Application
shares	O
a	O
few	O
syntactical	O
elements	O
(	O
LOOP	O
,	O
DO	O
OVER	O
)	O
not	O
found	O
in	O
classical	O
REXX	B-Language
.	O
</s>
<s>
NetRexx	B-Language
is	O
written	O
in	O
NetRexx	B-Language
and	O
uses	O
the	O
decimal	O
arithmetic	O
of	O
REXX	B-Language
specified	O
in	O
ANSI	O
X3.274	O
.	O
</s>
