<s>
Basic4Android	B-Application
(	O
currently	O
known	O
as	O
B4A	B-Application
)	O
is	O
a	O
rapid	O
application	O
development	O
tool	O
for	O
native	O
Android	B-Application
applications	I-Application
,	O
developed	O
and	O
marketed	O
by	O
Anywhere	O
Software	O
Ltd	O
.	O
</s>
<s>
B4A	B-Application
is	O
an	O
alternative	O
to	O
programming	O
with	O
Java	B-Language
.	O
</s>
<s>
The	O
language	O
itself	O
is	O
similar	O
to	O
Visual	B-Language
Basic	I-Language
and	O
Visual	B-Language
Basic	I-Language
.Net	I-Language
though	O
it	O
is	O
adapted	O
to	O
the	O
native	O
Android	B-Application
environment	O
.	O
</s>
<s>
B4A	B-Application
is	O
an	O
object-based	O
and	O
event-driven	O
language	O
.	O
</s>
<s>
B4A	B-Application
includes	O
a	O
visual	O
designer	O
that	O
simplifies	O
the	O
process	O
of	O
building	O
user	O
interfaces	O
that	O
target	O
phones	O
and	O
tablets	O
with	O
different	O
screen	O
sizes	O
.	O
</s>
<s>
Compiled	O
programs	O
can	O
be	O
tested	O
in	O
AVD	O
Manager	O
emulators	O
or	O
on	O
real	O
Android	B-Application
devices	O
using	O
Android	B-Application
Debug	I-Application
Bridge	I-Application
and	O
B4A	B-Application
Bridge	O
.	O
</s>
<s>
B4A	B-Application
generates	O
standard	O
signed	O
Android	B-Application
applications	I-Application
which	O
can	O
be	O
uploaded	O
to	O
app	O
stores	O
like	O
Google	B-Application
Play	I-Application
,	O
Samsung	B-Application
Apps	I-Application
and	O
Amazon	O
Appstore	O
.	O
</s>
<s>
Since	O
February	O
2020	O
,	O
the	O
full	O
version	O
is	O
100%	O
free	O
(	O
donationware	B-License
)	O
.	O
</s>
<s>
B4A	B-Application
supports	O
all	O
types	O
of	O
applications	O
such	O
as	O
games	O
,	O
databases	O
,	O
connectivity	O
,	O
sensors	O
and	O
hardware	O
.	O
</s>
<s>
B4A	B-Application
interacts	O
with	O
the	O
native	O
API	O
through	O
Java	B-Language
libraries	O
.	O
</s>
<s>
B4A	B-Application
libraries	O
consist	O
of	O
two	O
files	O
:	O
the	O
Java	B-Language
jar	O
file	O
and	O
a	O
XML	O
file	O
that	O
is	O
produced	O
by	O
a	O
tool	O
provided	O
with	O
B4A	B-Application
.	O
</s>
<s>
A	O
Basic4Android	B-Application
book	O
was	O
written	O
by	O
Wyken	O
Seagrave	O
and	O
published	O
by	O
Penny	O
Press	O
Ltd	O
in	O
October	O
2013	O
.	O
</s>
