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P r o t o t y p e S i s l c m P c n g e n d a li P c r a l a t a n E l e k t r o n i k D a n M o n i t o r i n g K e a i n a n a n G e d u n g B e r b a s i s S h o r t M e s s a g e S e r v i c e ”
H e t t y M e i l e n i
D a m p a k P e n g g u n a a n L a p t o p Y a n g M c n g a k i b a t k a n G a n g g u a n K c s c h a t a n P a d a M a n u s i a ” I n d r a S a tr i a d i P e n g a r u h M o t i v a s i D a n D is i p l i n K e r ja T e r h a d a p K i n e r j a P e g a w a i D a la m K a i t a n R c n c a n a
P e m b u a ta n P r o g r a m A p l i k a s i K o m p u t e r P e n g c l o l a a n D a t a P e g a w a i ( S u a t u S tu d i K a s u s P a d a P o l i t e k n i k N e g e r i S r i w i j a y a ) ”
N u r a in i
“ K e u n i k a n V a ria b e l D a la m P e m r o g r a m a n V i s u a l C + + ” R i d w a n E J f e n d i
“ C a r a M e m b a s m i V ir u s K o m p u t e r ”
R o b i n s o n
“ P e m a n f a a t a n A s t e r i s k P a d a V o ic e O v e r I n t e r n e t P r o t o c o l ”
S o n y O k t a p r i a n d i
“ P e r a n c a n g a n S m s G a t e w a y P a d a A b s e n s i K c h a d i r a n M a h a s i s w a J u r u s a n M a n a j e m e n I n f o r m a t i k a P o l i te k n i k N e g e r i S r i w i j a y a ”
Z u l k a r n a i n i
‘‘P e n g a r u h K i n e r j a D o s e n D a n M o t iv a s i M a h a s i s w a T e r h a d a p N i l a i U ji a n A k h i r S e m e s t e r M a h a s i s w a ( J u r u s a n M a n a j e m e n I n f o r m a t i k a P o l i t e k n i k N e g e r i S r i w i j a y a ) ”
D e l t a K h a i r u n n i s a
' ‘P e n g a r u h J u m l a h T c n a g a P e n j u a l T e r h a d a p P e n i n g k a t a n P e n j u a l a n P o l is P a d a P T . G r e a t L a s te r n L if e I n d o n e s i a C a b a n g P a l e m b a n g ”
N i t a N o v i t a d a n I n d r i A r i y a n t i
“ P e n g a r u h P e r t u m b u h a n E k o n o m i , I n f l a s i D a n U p a h T e r h a d a p P e n g a n g g u r a n D i S u m a t c r a S e l a t a n ”
R i k a S a d a r i a w a t i
MANAJEMEN INFORMATIKA POLITEKNIK NEGERI SRIWIJAYA
ISSN 2 0 8 5 - 2 5 7 6
Jurnal Manajemen Informatika - Politeknik Negeri
Sriwijaya
SEPTEMBER 2009
D A F T A R I S I
1.
P r o to t y p e
S is tc m P c n g e n d a li P e r a la ta n E l e k tr o n ik D a n
M o n i t o r i n g
K e a m a n a n G e d u n g
B e r b a s is
S h o r t M e s s a g e S e r v i c e
H e t t y M e i l e n i
1 -7
2.
D a m p a k P e n g g u n a a n L a p to p Y a n g M e n g a k ib a tk a n G a n g g u a n K e s e h a ta n P a d a M a n u s ia
I n d r a S a t r i a d i
8 - 1 7
3.
P e n g a r u h M o tiv a s i D a n D is ip lin K e r ja T e r h a d a p K in e r ja P e g a w a i D a la m K a ita n
R e n c a n a P e m b u a ta n P r o g r a m A p lik a s i K o m p u t e r P e n g e lo la a n D a ta P e g a w a i ( S u a tu
S tu d i K a s u s P a d a P o lite k n ik N e g e r i S r iw ija y a )
N u r a i n i
1 8 -2 7
4.
K e u n ik a n V a r ia b e l D a la m P c m r o g r a m a n
V is u a l
C + +
R i d w a n E f f c n d i
2 8 - 3 3
5.
C a r a M e m b a s m i V ir u s K o m p u te r
R o b i n s o n
3 4 - 3 8
6.
P e m a n f a a ta n A s t e r i s k P a d a V o i c e O v e r I n te r n e t P r o to c o l
S o n y O k t a p r i a n d i
3 9 - 4 6
7.
P e r a n c a n g a n S m s G a te w a y P a d a A b s c n s i K e h a d ir a n M a h a s is w a J u r u s a n M a n a je m e n
I n f o r m a tik a P o l ite k n ik N e g e r i S r iw ija y a
Z u l k a r n a i n i
4 7 - 5 4
8 .
P e n g a r u h K in c ija D o s e n D a n M o tiv a s i M a h a s is w a T e r h a d a p N ila i U jia n A k h ir
S e m e s te r M a h a s i s w a ( J u r u s a n M a n a je m e n I n f o r m a tik a P o lite k n ik N e g e r i S r iw ija y a )
D e l t a K h a i r u n n i s a
5 5 - 6 5
9 .
P e n g a r u h J u m l a h T e n a g a P e n ju a l T e r h a d a p P e n in g k a ta n P e n ju a la n P o l is P a d a P T . G r e a t
E a s te r n L ife I n d o n e s i a C a b a n g P a le m b a n g
N i t a N o v i t a d a n I n d r i A r i y a n t i
6 6 - 7 7
10. P e n g a r u h P e r tu m b u h a n E k o n o m i, I n fla s i D a n U p a h T e r h a d a p P e n g a n g g u r a n D i
S u m a te r a S e la ta n
K E U N I K A N V A R I A B E L D A L A M
P E M R O G R A M A N
V I S U A L
C + +
R id w a n E f f e n d i
S t a f P c n g a j a r J u r u s a n M a n a je m e n I n f o r r o a ti k a P o li t e k n i k N e g e r i S r iw ij a y a J a la n S r i ja y a N e g a r a B u k it B c s a r P a le m b a n g 3 0 1 3 9
E m a il : r i d w a n _ c f i c n d i _ m i @ p o l s r i .a c .i d
ABSTRAK
K a jia n ilm ia li in i a k a n m e m b e r i k a n g a m b a r a n te n t a n g v a r i a b e l p c m r o g r a m a n d a n m e m b c r i k a n p e tu n ju k p e m b u a t a n v a r i a b e l p a d a V is u a l C + + . S e c a r a m a te m a t is v a r i a b e l a d a la h s e b u a h s i m b o l y a n g m e w a k ili k u a n t i t a s d i d a la m p c m r o g r a m a n k o m p u te r . V a r ia b e l a d a la li s u a t u t e m p a t y a n g d is e d i a k a n d a la m m e m o r i k o m p u t c r u n tu k m e n a m p u n g d a ta d a n n ila i. P c m r o g r a m a n y a n g m e n g g u n a k a n V i s u a l C + + m e m il ik i k e u n i k a n d a l a m p e n y u s u n a n v a r ia b e l y a i tu v a r ia b e l y a n g m e m i l ik i h u b u n g a n la n g s u n g d c n g a n k o n t r o l n y a , y a n g d i b u s t m e i a i u i p r o s e d u r M e m b e r V a r ia b le .
K a ta K u n c i : U n ik , V a r i a b e l , V i s u a l C + + , M e m b e r V a r i a b l e
PENDAHUL'JAN
B a h a s a C + + p a d a a w a l n y a h a n y a d ik e n a l o l e h b e b e r a p a k a la n g a n m a s y a r a k a t s a ja , t c r u t a m a d i k a i a n g a n p e r g u r u a .; tin g g i y a n g m c m i li h C + + m e n j a d i s a la h s a t u k c a h li a n y a n g h a r u s d i m il ik i o le h m a h a s i s w a . N a m u r , s a a t in i s e b a g ia n b e s a r m a s y a r a k a t t e l a h m e n g e n a l b a h a s a C + + s e b a g a i b a h a s a p c m r o g r a m a n y a n g h a n d a l s e k a l i g u s m e n d u k u n g k o n s e p p c m r o g r a m a n b c r o r i e n t a s i o b y e k ( O b j e c t
O r i e n t e d P r o g r a m m i n g ) . K e s u lita r . y a n g
d i h a d a p i d a l a m m e n g g u n a k a n b a h a s a C + + a d a la li k e r u m it a n p e n u l is a n n y a . H a l in i m e m b u a t b a h a s a C + + s e a k a n - a k a n b a h a s a y a n g s u l i t d ip a h a m i s e h i n g g a b a h a s a in i m u n g k in c o c o k u n tu k k a l a n g a n t e r t e n tu s a ja . ( F e lix , 2 0 0 6 )
D e n g a n m u n c u l n y a V i s u a l C + + s e b a g a i p e n t c r j e m a h b a h a s a C + + , k e m m i t a n d a la m p e n u l is a n b a h a s a t e l a h d a p a t d i a t a s i. V i s u a l
C + + j u g a d i r a n c a n g u n tu k m e m b u a t a p lik a s i y a n g b e r b a s i s W i n d o w s s e c a r a V is u a l , d a n b e r b a g a i d a t a b a s e d a p a t d io la h d e n g a n b a ik .
S e l a n j u t n y a , k c b u l u h a n a k a n p e n g e t a h u a n
t e n t a n g V i s u a l C + + m e n j a d i s e m a k in m e n i n g k a t b a g i p e m u l a m a u p u n p a r a a h l i d a la m p c m r o g r a m a n y a n g b e r k e in g i n a n u n tu k m e n d a l a m i p e n t e i j e m a h b a li a s a k o m p u t e r te r s c b u t.
B e r d a s a r k a n p e n g a l a m a n p c n u l is d a la m m e m p e l a j a r i d a n m e n g a j a r p c m r o g r a m a n V i s u a l
C + + , t c r d a p a t k e u n i k a n v a r ia b e l , y a n g a k a n d a p a t m e n g h a m b a t p e m ik i r a n k i t a d a la m m e n y u s u n p r o g r a m . D ih a r a p k a n t u l i s a n in i d a p a t m e m b a n t u u n t u k m e m p e r c e p a t m e m a h a m i p c m r o g r a m a n te r s e b u t .
M e m a n g k a j ia n il m ia h in i tid a k d i a r a h k a n u n t u k m e m b c r i k a n g a m b a r a n t e n ta n g
v a r ia b e l d a l a m V is u a l C + + s e c a r a le n g k a p . I 'u lis a n in i le b ih d i a r a l ik a n u n t u k m e m b e r i k a n g a m b a r a n t e n ta n g K e u n i k a n V a r ia b e l d a la m V is u a ! C f + .
Perumusan Masalah
P e r m a s a la h a n d a l a m k a j i a n il m ia h in i a d a la li, a p a k a h v a r i a b e l d a n b a g a i m a n a p e m b u a ta n v a r ia b e l d a l a m p e m r o g r a m a n V i s u a l
C + + ?
Tujuan dan M anfaat
Tujuan
1. M e m b e r i k a n g a m b a r a n t e n t a n g v a r ia b e l p c m r o g r a m a n .
2 . M e m b e r ik a n p e t u n j u k p e m b u a t a n v a r ia b e l p a d a V is u a l C + + .
M a n f a a t
M e n y u m b a n g p c n g c t a h u a n s e k i la s t e n t a n g V a r i a b e l y a n g u n i k d a l a m p e m r o g r a m a n
V is u a l C + + .
TINJAUAN PUSTAKA
Pengertian Variabel
S e b e l u m m e m a s u k i p e m b a h a s a n , s e b a i k n y a k i t a s e g a r k a n k e m b a l i p e n g c t a h u a n te n t a n g v a r ia b e l , s e r ta b e b e r a p a i s t i la h d a la m p e m r o g r a m a n k o m p u te r , s e p e r t i F o r m , K o n tr o l, d a n a r t i d a r i k a t a U n ik .
D i d a la m m a te m a t i k a ,
variabel
a d a l a h s e b u a h s im b o l y a n g m e w a k il i k u a n t i t a s . S e b u a h v a r i a b e l m e w a k i li s u a t u k u a n ti t a s y a n g t id a k d i k e ta h u i . P a d a il m u k o m p u t e r v a r ia b e l m c r j p a k a n s u a tu t e m p a t d i m a n a s e b u a h k u a n t i t a s a k a n d is i m p a n . V a r i a b e l b c r b e d a d e n g a n k o n s t a n t a , y a n g d i a r t i k a n s e b a g a i s u a tuy a n g d ik e ta h u i d a n t a k d a p a t d iu b a h . V a r ia b e l b ia s a n y a ,'d ig u n a l ^ r i : d a l a m p e m y a t a a . . C o n to h n y a d a la m r u m u s a n : x + 1 = 5 , x a d a la h se b u a h v a ria b c f m e w a k i li s u a r u b i l a n g a n y a n g tid a k d ik e ta h u i.
V a ria b e l b ia s a n y a d i n y a t a k a n d e n g a n h u r u f a lf a b e tik a , n a m u n s e r i n g j u g a d i n y a ta k a n d e n g a n h u r u f R o m a w i, d a n s im b o l . ( W i k i m e d i a ) > • s i '
D i d a la m p e m r o g r a m a n k o m p u t e r , v a ria b e l a d a la h s u a tu t e m p a t y a n g d i s e d i a k a n d a la m m e m o r i k o m p u t e r u n t u k m c n a m p u n g d a ta d a n n ila i d a t a y a n g d im a s u k a n k e d a la m n y a d a p a t d iu b a h s e w a k t u - w a k t u . S e b u a h v a r ia b e l se c a ra la n s u n g m e r u p a k a n t e m p a t m e n y i m p a n su a tu n ila i d i d a la m m e m o r i k o m p u te r . S e tia p v a ria b e l m e m il ik i n a m a u n tu k m e n g in d e n tif ik a s i d a ta y a n g d i k a n d u n g n y a . (F e lix 2 0 0 6 )
M e m o r i p a d a k o m p u t e r te r b a g i d a l a m b a g ia n - b a g ia n y a n g d i s c b u t d e n g a n s e g m e n .
S e tia p s e g m e n b e i i s i b e b e r a p a b y t e d a ta s e h in g g a s e b e l u m d i a k s e s s e b a i k n y a d i t e n t u k a n d a h u lu s e g m e n y a n g a k a n d i g u n a k a n . ( B u d i S u te jo d a n M i c h a e l A N , 2 0 0 4 )
L i n g k u p V a r i a b e l
L i n g k u p V a r ia b e l m e n je la s k a n d i m a n a v a ria b e l t c r s e b u t d i g u n a k a n d i d a la m P r o g r a m . K e b a n y a k a n b a h a s a p e m r o g r a m a n m c n e n t u k a n lin g k u p k h u s u s u n tu k m a s i n g - m a s i n g v a r ia b e l. L in g k u p s e b u a h v a r ia b e l a d a l a h b a g ia n d a r i k o d e p r o g r a m . S e b u a h v a r i a b e l d e n g a n lin g k u p
l e x i c a l a d a la h h a n y a d i m e n g e r ti d i d a l a m
se b u a h b lo k p e m y a t a a n a t a u s u b r u t i n . S e b u a h v a ria b e l g l o b a l a ta u s e b u a h v a r i a b e l d e n g a n lin g k u p lu a s (i n d e f i n i t e ) , d i m u n g k i n k a n u n t u k d ik e n a l d i m a n a s a ja d i d a l a m p r o g r a m .
U n tu k m e n g h e in a t t e m p a t d i d a l a m k o m p u te r , s e b u a h t e m p a t ( m e m o r y j u n tu k se b u a h v a r i a b e l , h a n y a d i t c m p a t i k e t i k a v a r ia b e l tc rs e b u t p e r t a m a d i g u n a k a n , d a n d ik o s o n g k a n k e tik a tid a k d ig u n a k a n la g i.
J c n i s V a r i a b e l
P a d a b e b e r a p a b a h a s a p e m r o g r a m a n , k a ra k te r k h u s u s d i t a m b a h k a n d i a w a l a t a u d i a k h ir s e b a g a i p e n g e n a l y a n g m c n u n j u k a n j c n i s d a ri s e b u a h v a r i a b e l . C o n t o h n y a d a l a m b a h a s a
B A S I C. a w a la n S p a d a s e b u a h n a m a v a r ia b e l
m e n u n ju k k a n b a h w a n i l a i n y a a d a la li s t r i n g .
B a h a sa C m e n g e n a l 2 j e n i s v a r ia b e l , y a itu : 1. V a r ia b e l P r i m i t i f ( N ila i) .
2 . V a r ia b e l R e f r e n s i.
V a r ia b e l P r i m i t i f ( N i la i) m e r u p a k a n j e n i s d a s a r y a n g d i s e d i a k a n b a h a s a C u n tu k n ila i te rte n tu . A d a p u n j e n i s P r i m i t i f ( N i l a i ) m e l ip u t i ;
b y t e , s h o r t , in t. l o n g , c h a r , f l o a t , d o u b l e , u in t,
u s h o r t , u l o n g , b o o l.
V a r ia b e l R e f r e n s i m e r u p a k a n j e n i s y a n g d i k e m b a n g k a n d a r i j e n i s d a s a r , d e n g a n tu ju a n m c m e n u h i k e b u t u h a n u n t u k j e n i s d a t a y a n g k o m p l e k d e n g a n r e f r e n s i k c s e b u a h n il a i . J e n is R e f r e n s i m e lip u ti: a r r a y , c l a s s , in t e r f a c e , d e l e g a t e .
U n tu k b a h a s a C d a n C + + , j e n i s v a r ia b e l d i t e n tu k a n m e la lu i d e k la r a s i , C o n to h n y a :
in t a ~ 10;
s t r i n g b = " h e l lo " ;
V a r ia b e l s e r in g m e n y i m p a n d a t a y a n g s e d c r h a n a s c p c r t i b il a n g a n d a n s t r in g , n a m u n b a n y a k b a h a s a p e m r o g r a m a n m e n g iz i n k a n s e b u a h v a r ia b e l u n t u k m e n y i m p a n n ila i d a r i d a t a j c n i s la i n n y a , s e p e r t i v a r ia b e l y a n g m e n y im p a n d a t a t a n d a ta n g a n .
Pengcrtian Lainnya
D a la m P e m r o g r a m a n k o m p u t e r . F o r m
a ta u W i n d o w a t a u D i a l o q a d a la h t e m p a t m e m b u a t u s e r i n t e r f a c e . S e d a n g k a n O b j e c t a ta u
C o n t r o l a d a la h k o m p o n e n y a n g t e r d a p a t d a l a m
s u a t u p r o g r a m .
P a d a tu l i s a n in i, k a t a U n ik a r t i n y a h a n y a s a t u - s a t u n y a , t a k a d a d u a n y a , t a k a d a b a n d i n g a n n y a , t a k a d a y a n g m c n y a m a i . ( P o c r w a d a r m i n t a , 1 9 8 4 )
PEMBAHASAN
J i k a k i t a m e n y u s u n p r o g r a m d e n g a n m e n g g u n a k a n V i s u a l B a s i c a t a u p e n t c i j e m a h la in n y a , m a k a p a d a s a a t f o r m d e n g a n s e m u a k o n t r o ln y a s e le s a i d ib u a t, k i t a te l a h s i a p u n t u k m e m a s u k a n a ta u m e n y u s u n k o d e - k o d e p r o g r a m . B e r b c d a d e n g a n V i s u a l C + + , p a d a s a a t f o r m
( D i a l o q ) d a n k o n t r o l n y a s e le s a i d i b u a t , m a k a
h a r u s t e r l e b i h d a h u l u d i s u s u n v a r ia b e l y a n g b e r h u b u n g a n la n g s u n g d e n g a n k o n t r o l a t a u v a ria fc e l y a n g t id a k b e r h u b u n g a n d e n g a n k o n tr o l tc r s e b u t.
Pembuatan
Variabel yang berhubungan
dengan Kontrol
U n tu k m e n d e k l a r a s i k a n v a r ia b e l d a n b e r h u b u n g a n d e n g a n k o n t r o l k i t a h a r u s m e l a lu i s u a tu p r o s e d u r . D i b a w a h i n i p e n u li s c o n t o h k a n s e b u a h a p li k a s i b e r d a s a r k a n D i a lo g d a r i e B o o k
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