❞ كتاب A STRING SEARCH MARKETING APPLICATION USING MIT APP INVENTOR VISUAL PROGRAMMING ❝

كتيب مبسط يشرح كيفية بناء تطبيق متصفح انترنت بسيط بتقنية البرمجة بدون كود PWCT

European Journal of Business and Social Sciences, Vol.

767X
EUROPEAN JOURNAL OF BUSINESS AND SOCIAL SCIENCES
178

A STRING SEARCH MARKETING APPLICATION USING
MIT APP INVENTOR VISUAL PROGRAMMING

European Journal of Business and Social Sciences, Vol.

767X
EUROPEAN JOURNAL OF BUSINESS AND SOCIAL SCIENCES
178
A STRING SEARCH MARKETING APPLICATION USING
MIT APP INVENTOR VISUAL PROGRAMMING
J
erry Chin
Professor and Department Head
CIS Department
Missouri State University
901 S National
Springfield, MO 65897
417
-
836
-
4131
Jerrychin@missouristate.edu
Mary Chin
Senior Instructor
Marketing Department
Missouri State University
901 S National
Springfield, MO 65897
417
-
836
-
4873
Marychin@missouristate.edu
ABSTRAC
T
sing the App Inventor software, t
his paper
extends a
previous paper that demonstrated
the use of
programing software that provides the student
programmer visu
al cues to construct the code for
a student
programming assignment. This method does not disregard or
minimize the syntax or required logical constructs. The stude
nt
can con
centrate more on the logic and less
on
the language itself.
Key
Words:
Graphical
Programming,
Introductory
Programming, String Search Application

European Journal of Business and Social Sciences, Vol.

767X
EUROPEAN JOURNAL OF BUSINESS AND SOCIAL SCIENCES
179
The MIT App Inventor
[1]
devel
opment system is Java based and
incorporates a web browser
and for
this
paper, an Android phone emulator. The student stores his/her work on the App Inventor servers.
Programming occurs in two phases. In the Designer screen, the student selects and inserts
components such
as buttons, textboxes, and labels. The Blocks Editor provides lists of colored blocks that interact
with each
other depending
upon the function. Blocks
for logic,control,
and
variable
s
are assembled to provide the
program
code
.
From a te
aching and learning standpoint, t
he syntax issue is essentially taken out of the
development. When
incompatible blocks are joine
d to together, the action is bl
o
c
ked with an error pop
-
up. The logic, analysis
and arrangement of procedures
still
remain
the s
tudent’s perogative.
Visual Programming
In addition to the App Inventor software, there are a number of software packages that can be classi
fied as
visual programming languages. We list three other examples which are free downloads.
Program
ming
Without Coding Technology [2]
is a
software package that provides a
GUI, which
allows the
student to construct a program by using a
n
interface
with pop
-
up boxes and templates to reduce the need to
know the exact syntax.
PWCT
is a free download. The stude
nt
is
still required to have a logical overview
of the code. For the problem presented in this paper, the string functions provided were sufficient.
The GUI
provides a structured way to control the levels of code such as code inserted within a While
-
L
oop o
r
an
If
-
Then statement.
Microsoft
VPL
[4]
is a graphical programming package that is part of the
Microsoft Robotics Developer
Studio
. This application is used to guide and operate robots. The
approach of software uses a
graphical
dataflow
-
based programming model, where the components initiate action once all the signals or messages
arrive rather than a sequence of commands executed in sequence. The language purportedly targets the
beginning programmer.
The following
picture
shows the
code to increment a variable
by one until it
reaches
a maximum of
ten.
-
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