MODULAR. sub, dengan tujuan efisiensi. Microsoft Visual Basic 6 : PENERAPAN KONSEP MODULAR arifintindi

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1 MODULAR Konsep Modular : Pemusatan fungsi fungsi atau sub sub, dengan tujuan efisiensi Contoh : Melakukan operasi matematika dengan nilai Variabel 1 = 4 dan Variabel 2 = 2 Cara Konvensional Form Tambah (Private) Function Tambah ( = 3) Form Kurang (Private) Function Kurang ( 4-2 = 2) Form Kali (Private) Function Kali ( 4 * 2 = 8) Form Bahagi (Private) Function Bahagi ( 4 / 2 = 2) Form Pangkat (Private) Function Pangkat ( 4^2 = 16) Form Tambah Kurang Kali Bahagi (Private) Function Tambah ( = 3) Function Kurang ( 4-2 = 2) Function Kali ( 4 * 2 = 8) Function Bahagi ( 4 / 2 = 2) Function Pangkat ( 4^2 = 16) Konsep Modular Function Tambah ( = 3) Function Kurang ( 4-2 = 2) Function Kali ( 4 * 2 = 8) Function Bahagi ( 4 / 2 = 2) Function Pangkat ( 4^2 = 16) Form Tambah (Private) Call Tambah (3) Form Bahagi (Private) Call Bahagi (2) Form Pangkat (Private) Call Pangkat (16) Modul Matematika (Public) Form Kurang (Private) Call Kurang (2) Call Tambah (3) Call Kurang (2) Call Kali (8) Call Bahagi (2) Call Pangkat (16) Form Kali (Private) Call Kali (8) Form Tambah Kurang Kali Bahagi (Private) 1

2 KONSEP MODULAR UMUM UMUM Tambahkan komponen sebagai berikut : Modul (name : mdlmatematika) Public Var1 As Double Public Var2 As Double Public htambah, hkurang, hkali, hbahagi As Double Public Function Tambah() htambah = Var1 + Var2 Public Function Kurang() hkurang = Var1 - Var2 Public Function Kali() hkali = Var1 * Var2 Public Function Bahagi() hbahagi = Var1 / Var2 MDI Form (nama : mdiutama, Caption = Test Modul, WindowState = 2 - Maximized) 1 PictureBox pbchat Align = 4 - Align Right, Visible = False 2 ListBox lschat 3 CommandButton cmdclient Caption = Tambah Client 4 CommandButton cmdbersih Caption = Bersihkan List 5 MenuEditor mnmatematika Matematika 6 MenuEditor mntambah... Tambah 7 MenuEditor mnkurang... Kurang 8 MenuEditor mnkali... Kali 9 MenuEditor mnbahagi... Bahagi 10 MenuEditor mnx MenuEditor mntkkb... Tambah Kurang Kali Bahagi 12 MenuEditor mnstring String 13 MenuEditor mnchat... Chat Server 14 MenuEditor mntutupchat... Tutup Server 2

3 Name : frmtambah (Caption Tambah, BorderStyle = 1 - Fixed Single, MDIChild = True) 3 TextBox txthasil 4 CommandButton cmdtambah Caption = Tambah (+) Name : frmkurang (Caption: Kurang, BorderStyle = 1 - Fixed Single, MDIChild = True) 3 TextBox txthasil 4 CommandButton cmdkurang Caption = Kurang (-) Name : frmkali (Caption : Kali, BorderStyle = 1 - Fixed Single, MDIChild = True) 3 TextBox txthasil 4 CommandButton cmdkali Caption = Kali (*) 3

4 Name : frmbahagi (Caption : Bahagi, BorderStyle = 1 - Fixed Single, MDIChild = True) 3 TextBox txthasil 4 CommandButton cmdbahagi Caption = Bahagi (/) Name : frmtambahkurangkalibahagi (Caption : Tambah Kurang Kali Bahagi, BorderStyle = 1 - Fixed Single, MDIChild = True) 3 TextBox txttambah 4 TextBox txtkurang 5 TextBox txtkali 6 TextBox txtbahagi 7 CommanButton cmdhitung Caption = Hitung 4

5 - Syntax di Form : mdiutama Double Click Pada, kemudian ketikan syntax berikut : mntambah (Event : Click()) Private Sub mntambah_click() frmtambah.show mnkurang (Event : Click()) Private Sub mnkurang_click() frmkurang.show mnkali(event : Click()) Private Sub mnkali_click() frmkali.show mnbahagi (Event : Click()) Private Sub mnbahagi_click() frmtambah.show mntkkb (Event : Click()) Private Sub mntkkb_click() frmtambahkurangkalibahagi.show - Syntax di Form : frmtambah cmdtambah (Event : Click()) Private Sub cmdtambah_click() Call Tambah txthasil.text = htambah - Syntax di Form : frmkurang cmdkurang (Event : Click()) Private Sub cmdkurang_click() Call Kurang txthasil.text = hkurang 5

6 - Syntax di Form : frmkali cmdkali (Event : Click()) Private Sub cmdkali_click() Call Kali txthasil.text = hkali - Syntax di Form : frmbahagi cmdbahagi (Event : Click()) Private Sub cmdbahagi_click() Call Bahagi txthasil.text = hbahagi - Syntax di Form : frmtambahkurangkalibahagi cmdhitung (Event : Click()) Private Sub cmdhitung_click() Call Tambah Call Kurang Call Kali Call Bahagi txttambah.text = htambah txtkurang.text = hkurang txtkali.text = hkali txtbahagi.text = hbahagi 6

7 KONSEP MODULAR UMUM KHUSUS Kemudian dalam proyek tadi, Tambahkan komponen sebagai berikut : Modul (name : mdlstring) Public BufferPesan As String Public namauser As String Public Function KirimPesan() mdiutama.lstchat.additem namauser & " : " & BufferPesan Name : frmsetclient (Caption: User Baru, BorderStyle = 1 - Fixed Single, MDIChild = True) 1 TextBox txtuser MaxLen = 5 2 Command Button cmddaftar Caption = Daftar Name : frmclient (Caption: Client, BorderStyle = 1 - Fixed Single, MDIChild = True) 1 TextBox txtpesan MaxLen = 30 2 Command Button cmdkirim Caption = Kirim Modul (name : mdlbuatclient) Public ClientBaru As frmclient Public User As String Public Function BuatClient() Set ClientBaru = New frmclient Load ClientBaru With ClientBaru.Caption = User.Show End With 7

8 - Syntax di Form : frmsetclient cmddaftar(event : Click()) Private Sub cmddaftar_click() User = txtuser.text Call BuatClient Unload Me - Syntax di Form : frmclient cmdkirim(event : Click()) Private Sub cmdkirim_click() namauser = Me.Caption BufferPesan = txtpesan.text KirimPesan txtpesan.text = "" txtpesan.setfocus - Syntax di Form : mdiutama cmdclient(event : Click()) Private Sub cmdclient_click() frmsetclient.show cmdbersih(event : Click()) Private Sub cmdbersih_click() lstchat.clear 8