This document discusses procedures and functions in Visual Basic programming. It contains the following key points: 1. Procedures (subs) are blocks of code that execute a set of instructions but do not return a value. Functions are similar but do return a value. 2. Procedures and functions can be declared with keywords like "Sub", "Function", and "End Sub/Function". They can optionally take parameters and return values of a specified data type. 3. Examples are given of creating simple procedures and functions, including how to call them. Modules are also introduced as a way to group related procedures and functions.

1. PROSEDUR DAN FUNGSI
Pemrograman Berorientasi Objek II
Pertemuan – 5
Edri Yunizal, S.Kom., M.T.
Lita Sari Muchlis, M.Kom.
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2. Prosedur dan Fungsi
• Prosedur
– Load()
– Click()
– Kata kunci
• Sub
• Private sub
• Fungsi
– Cint
– Csng
– kata kunci:
• Function
• Private function 2

3. Pemrograman prosedural dg VB6
• Buat kumpulan perintah yang diberi sebuah
nama
• Nama kumpulan perintah itu bisa dieksekusi
• Caranya:
– Buat kode yang diiinginkan
– Buat blok kodenya,
• Prosedur: Sub..end sub
• Fungsi: Function... End function
– Panggil nama blok kode tersebut
• Fungsi: mengembalikan nilai, prosedur: tidak 3

4. Prosedur
• A sub is a procedure that executes the lines of code within its
block but doesn't return a value. The syntax for a simple sub is
as follows:
[Private|Public] Sub SubName(parameter)
.....lines of code
End Sub
• In this syntax
– [Private|Public] are the optional Visual Basic keywords that define the
scope of the sub.
– Sub is the Visual Basic keyword that denotes the type of procedure.
– Parameter: nilai yang dikirimkan (kalau ada)
– SubName is the name that you assign to your sub.
– End Sub are the Visual Basic keywords that denote the end of a code 4

5. Prosedur sederhana
5
cmdUtang

6. Menambahkan prosedur
6Project30 sub

7. Koding prosedur
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8. Fungsi
• A function is a procedure that executes lines of code and returns a value. The
syntax for declaring a simple function is as follows:
[Private|Public] Function FunctionName(parameter) As DataType
...lines of code
FunctionName = ReturnValue
End Function
• In this syntax
– Private|Public are the optional Visual Basic keywords that define the scope of the
function.
– Function is the Visual Basic keyword that denotes the procedure is a function.
– FunctionName is the name that you assign to your function.
– Parameter: nilai yang dikirimkan (kalau ada)
– As is the Visual Basic keyword that denotes a data type assignment.
– DataType is the data type of the value that the function will return.
– ReturnValue is the value that you pass back from the function by assigning it to the
function's name. (This is very important!)
– End Function are the Visual Basic keywords that denote the end of a code block. 8

9. Menambahkan fungsi
9
Project31 fungsi

10. Koding project31
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11. Module
• Fungsi dan prosedur bisa dikelompokkan
dalam sebuah module
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12. Prosedur Genap Ganjil
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13. Modul genapganjil
• Tambahkan procedure:
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14. Project module
14
frmGenapGanjil
txtAngka
cmdTutup
cmdBersihcmdCek

15. Koding project32
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16. Tambahkan function di module
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17. cmdCekfungsi
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cmdCekFungsi

18. Tugas
• Buat Project15-project29 dalam bentuk fungsi
dan prosedur dengan menggunakan module
• Jadikan project-project tersebut menjadi
project32-project46
• Kumpulkan dalam CD
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19. MDI DAN MENU
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20. Buat project standard.exe baru
• Tambahkan MDI Form
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21. Startup object=MDIForm1
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22. Tambahkan menu
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23. mnuProsedur dan mnuUtang
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24. Sumber
• H.S., Suryadi., Sumin, Agus. (1997). Pengantar
Algoritma dan Pemrograman: Teknik Diagram
Alur dan Bahasa Basic Dasar. Jakarta:
Universitas Gunadarma
• QUE
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