Sorting Dengan Metode Bubble Sort Mengunakan Visual Basic

Bubble Sort merupakan salah satu jenis sorting. Diberikan nama "bubble" karena konsep dari algoritmanya diibaratkan sepert gelembung air untuk elemen struktur data yang seharusnya pada posisi awal. Bubble sort ,mengurut data dengan cara membandingkan elemen sekaran dengan elemen berikutnya. Dimana cara kerjanya adalah dengan berulang-ulang melakukan proses looping terhadap elemen-elemen data yang belum diurutkan. Nilai dari masing-masing elemen akan dibandingkan selama proses looping tersebut .jika selama proses looping tersebut ditemukan ada urutannya tidak sesuai dengan permintaan, maka akan dilakukan proses pemukaran (swap).

Metode pengurutan gelembung (Bubble Sort) diinspirasikan oleh gelembung sabun yang berada dipermukaan air. Karena berat jenis gelembung sabun lebih ringan daripada berat jenis air, maka gelembung sabun selalu terapung ke atas permukaan. Prinsip di atas dipakai pada pengurutan gelembung.
Algoritma bubble sort adalah salah satu algoritma pengurutan yang paling simple, baik dalam hal pengertian maupun penerapannya. Ide dari algoritma ini adalah mengulang proses pembandingan antara tiap-tiap elemen array dan menukarnya apabila urutannya salah. Pembandingan elemen-elemen ini akan terus diulang hingga tidak perlu dilakukan penukaran lagi.
Algoritma ini termasuk dalam golongan algoritma comparison sort, karena menggunakan perbandingan dalam operasi antar elemennya.

Untuk mempermudah penjelasan silahkan lihat gambar di bawah ini :




Berikut ini adalah contoh dari program Visual Basic yang menggunakan algoritma Buble Sort secara Ascending :

Gambar dibawah ini adalah hasil dari program Pengurutan Data sederhana menggunakan metode Bubble Sort secara Ascending :

Demikianlah penjelasan metode Bubble Sort, semoga bermanfaat dan jangan lupa beri masukkannya untuk tulisan yang lebih bermanfaat lagi.

Sorting dengan Metode Selection Sort Menggunakan Visual Basic

Sorting merupakan salah satu hal penting yang ada di dunia komputer, sorting sering kali kita manfaatkan untuk mempermudah mendapatka informasi tertentu secara cepat.

Ada banyak teknik sorting yang bisa kita gunakan, Sebagai permulaan, maka hari ini kita akan membahas selecion sort.

Selection sort merupakan teknik sorting yang paling sederhana, hal pertama yang akan dilakukan algoritma selection sort adalah menemukan elemen terkecil dalam array kita dan menukarna (swap) dengan elemen yang ada di posisi pertama, kemudian algoritma ini akan mengulangi hal yang sama lagi yaitu mencari elemen terkecil yang ada di dalam array dan kemudian menukarnya (swap) dengan elemen yang ada di posisi kedua (elemen di posisi pertama sudah berhasil di sorting). Proses ini akan terus beranjut sampai semua elemen yang ada di dalam array telah berhasil kita sorting.

Untuk mempermudah penjelasan mari kita lihat penggambaran dari prosesnya.

• Pertama kita mempunyai 9 elemen array yang masi tidak berurutan.
• Selection sort akan mencari elemen terkecil dari array yang kita punya, dimana disini elemen terkecil adalah 13. Setelah mendapatan elemen terkecil, maka selection sort akan menukar elemen tersebut ke posisi pertama (29 & 13 ditukar).
• Proses pertama berhasil, maka selection sort akan menukar posisi elemen 29 ke posisi kedua.
• Proses tersebut akan dilakukan lagi dan lagi sampai semua elemen array berhasil di Sorting

Berikut implementasi dari selection sort menggunakan bahasa Visual Basic :

Hasil dari code yang diatas : 

Selesai

Membuat Program Pencarian Data menggunakan Visual Basic

Selamat datang di blog ini. Kali ini saya akan membahas tentang apa itu Visual Basic. Microsoft Visual Basic (sering disingkat sebagai VB saja) merupakan sebuah bahasa pemrograman yang menawarkan Integrated Development Environment (IDE) visual untuk membuat program perangkat lunak berbasis sistem operasi Microsoft Windows dengan menggunakan model pemrograman (COM).

 

Visual Basic merupakan turunan bahasa pemrograman BASIC dan menawarkan pengembangan perangkat lunak komputer berbasis grafik dengan cepat. Beberapa bahasa skrip seperti Visual Basic for Applications (VBA) dan Visual Basic Scripting Edition (VBScript), mirip seperti halnya Visual Basic, tetapi cara kerjanya yang berbeda. Para programmer dapat membangun aplikasi dengan menggunakan komponen-komponen yang disediakan oleh Microsoft Visual Basic Program-program yang ditulis dengan Visual Basic juga dapat menggunakan Windows API, tetapi membutuhkan deklarasi fungsi luar tambahan.

 

Dalam pemrograman untuk bisnis, Visual Basic memiliki pangsa pasar yang sangat luas. Sebuah survey yang dilakukan pada tahun 2005 menunjukkan bahwa 62% pengembang perangkat lunak dilaporkan menggunakan berbagai bentuk Visual Basic, yang diikuti oleh C++, JavaScript, C#, dan Java. source: WikiPedia

 

Kali ini saya akan membahas tentang pencarian data menggunakan Visual Basic.  Program pencarian data pada program yang dibuat menggunakan bahasa visual basic sangatlah penting. Apalagi data yang telah dinputkan sangat banyak. Sehingga untuk mencari data dengan kriteria tertentu dengan maksud melakukan perubahan pada data tersebut sangat sulit jika dilakukan dengan cara manual.

 

Sebagai contoh jika kita mempunyai data yang banyak. Dan jika dilakukan dengan manual akan memakan waktu yang lama. Nah, disinilah pentingnya program ini untuk mempercepat pencarian data.

 

Nah, di artikel ini saya ingin menunjukkan langkah-langkahnya.

 

1. Buka Visual Studio > Buka tab "File" dan pilih "New Project" > Pilih Visul Basic > Pilih "Console Appication"

 



 

 

2. Masukkan script seperti dibawah ini.

 

 

3. Setelah memasukkan script diatas , klik "Start" > Dan masukkan nama dan harga barang .



 

4. Akan tampil daftar dan harga barang yang telah dimasukkan tadi > Setelah itu masukkan jumlah barang yang akan dibeli (saya memasukkan 4 barang)

 

 

5. Masukkan nama barang yang di inputkan tadi , dan akan muncul jumlah harga barang tersebut.

 

 

 

 

SELESAI

 

 

SEKIAN DARI SAYA

&

SELAMAT MENCOBA



 

Penulis : Fitra Aditya P

 

How To Setup DNS

How To Setup Your Own Dns (Domain Name Server)

This is only a quick tutorial, there are literally hundreds of little tricks you can do with a DNS, but this

will get your basics up and running. I'm assuming you want to setup a windows DNS server, but the principals will work for most servers.

You will need..

1)  A domain name over which you have full control

2)  DNS server software(Windows server always comes with one of these)

3)  At least one fixed IP address, allthough two is highly desirable

4)  An idea of what services you want on your server

The first thing you need to do is create your new domain entry. In windows this is called a "Zone" and you

will have one for every domain name you have. Add your main domain in the forward lookup zone as a Primary zone, which will be in the format "Domainname.com", or .co.uk, or whatever, you shouldn't need any more details for this bit. Do *not* allow dynamic updates unless this is a local network DNS. Once it is created

you will have 2 entry's under your new domain, "SOA"(Or Start of Authority) and "NS"(Or Name server). If you

want a 100% compliant DNS then you should now follow the same process but adding a domain as a reverse lookup zone. Any changes you make to the forward lookup should have the "Update Reverse Lookup" option ticked if its available, if not you must update the reverse zone manually(This is very important).

Now edit the "NS" entry in your forward zone to "NS0.DomainName.Com", and set it to the relevant IP address. Add another (NS) record and set it to "NS1.DomainName.Com". If using 2 IP address, try to make NS0 the first IP. Now you need to configure the SOA entry in the forward lookup zone. The serial number should be changed to a date followed by a number in this format "YYYYMMDDnn", this is not required, but is advised by RIPE. The primary server will be the "NS0.domainname.com" entry you just made and the responsible person should be left for now. The refresh interval should be set somewhere between 1200 to 43200 seconds, the retry should be between 120-7200 seconds and the expires after should be around 2-4 weeks(I'll let you work out the seconds for that). The minimum TTL is quite important, and depending on what you are going to do with the domain, you might need to tweak this a bit. Typically a value between 1-3 hours should be used. Now go to your "Name server" settings in your SOA record(In windows this is a tab in the same window) remove the defaults, and add your two Name servers that you just setup. We will come back to the SOA record later, but for now we need to do some more stuff.

If you want a website, then your going to want the WWW. setting up. We will set it up as an "A" record, which means it is a separate top level record and will be populated separately from other entries. So add an "A" to your forward lookup zone and put the entry as "WWW", and set the IP address to wherever you want the website to be. This will be where the domain always goes, and it could be anywhere. Just make sure there is a web server waiting there for it. If you want FTP, then setup the same thing but with "FTP" in the entry. You will

now also have to setup "A" records for the NS0 and NS1 name servers that you added previously, just make them the same as WWW and FTP, but make sure the IP addresses match the ones used for setting up the "NS" records. Also add a blank "A" record, this will make sure that "domainname.com" works as well as "www.domainname.com".

Now you should decide whether or not you want to have mail on this domain. It is Hegel advisable that you set one up, even if it just to catch domain mail about abuse or potential problems that might occur. You can find plenty of high quality free mail servers out there, but I would recommend "Mail Enable", its free and provides everything you would want, but if you want webmail you do have to pay something extra for it. We will now configure the MX records. Add an "A" name for your mail server, you can add 2 if you want, but for simplicity I would advise staying with 1. We will call ours "Mail.domainname.com", and point it to one of our IP addresses. Now add an "MX" record in the Forward Lookup zone, giving it the full "A" record you just entered "Mail.domainname.com", and do not setup a host or child domain, just leave it blank.

This next step isn't needed, but is again highly recommended.

Now to finish the SOA you need to add two more records. A "RP" entry, which is a Responsible Person, and they will be the contact point for domain complaints and a "MB" entry, which is a mailbox entry. The "MB" should just be pointed to the mail server domain name "Mail.domainname.com", and the "RP" should have the host or domain set to the name of your mail box. So for this server it will be "Tony.Domainname.com", and the mailbox will be set to the "MB" record you just made. Don't worry about the RP address having no "@" in it, this is

the expected format for an "RP" entry. You will now have to go back into the SOA and change the responsible person to the new "RP" record you just made.

And thats it, your done! You can add as many "A" records as you like to point to other web servers, or a multitude of FTP sites. And you can add "CNAME" records to basically point to another name, usually an "A" record, like an alias.

Now before you switch your domain on, you need to check that the server is performing properly. So go to www.dnsreport.com, and run the report on your domain "domainname.com", and it will give you a very detailed report of any problems, and even a short description of how to fix the problems. If all is OK, then you are ready to go live. If your domain name is new, or not currently hosted anywhere then the first thing you should do is re-point the domain at your new server. You will typically do this with the provider who owns the domain, and it will be different with all hosts. But the basic settings are the same. You will be asked for at least 2 name servers and ip addresses to go with them. Just put in "NS0.domainname.com" and "NS1.domainname.com" and put in the correct IP addresses. Make sure you do not mess this up, as changes to your main NS servers could potentially take several days to straighten themselves out. Update these settings, and then sit back and wait. You can do a whois on the main DNS server of your domain provider to check if the settings have worked, but again this doesn't always work. For the big 3 domains(.com .net .org) you can do a whois on the network associates site to see the changes instantly. You can also track the progress of the domain changes by doing an NSLookup in dos, like this...

c:\nslookup ns0.domainname.com NS0.yourprovidersdns.com

That will give you the entries your domain provider has

c:\nslookup www.domainname.com ns0.domainname.com

And this will tell you if the changes for your domain have gone through to your ISPs DNS yet. It should give you back the IP address of your new DNS server.

You should always make sure your server is backed up, and that you refresh or update the DNS when you are making changes.

Bit Torrent Tutorials

Bit Torrent Tutorials

The first things you need to know about using Bit Torrent:

-- Bit Torrent is aimed at broadband users (or any connection better than dialup).

-- Sharing is highly appreciated, and sharing is what keeps bit torrent alive.

-- A bit torrent file (*.torrent) contains information about the piece structure of the download (more on this later)

-- The method of downloading is not your conventional type of download. Since downloads do not come in as one big chunk, you are able to download from many people at once, increasing your download speeds. There may be 100 "pieces" to a file, or 20,000+ pieces, all depending on what you're downloading. Pieces are usually small (under 200kb)

-- The speeds are based upon people sharing as they download, and seeders. Seeders are people who constantly share in order to keep torrents alive. Usually seeders are on fast connections (10mb or higher).

In this tutorial, I will be describing it all using a bit torrent client called Azureus. This client is used

to decode the .torrent files into a useable format to download from other peers. From here on out, I will refer to Bit Torrent as BT.

Which BT client you use, is purely up to you. I have tried them all, and my personal favorite is Azureus for many reasons. A big problem with most BT clients out there, is that they are extremely CPU intensive, usually

using 100% of your cpu power during the whole process. This is the number one reason I use Azureus. Another, is a recently released plug-in that enables you to browse all current files listed on suprnova.org (the #1

source for torrent downloads).

Before you use the plug-in, take a look at /http://www.suprnova.org, and browse the files. Hold your mouse over the links, and you'll notice every file ends in .torrent. This is the BT file extension. Usually,

.torrent files are very small, under 200kb. They contain a wealth of information about the file you want to download. A .torrent file can contain just 1 single file, or a a directory full of files and more directories.

But regardless, every download is split up into hundreds or thousands of pieces. The pieces make it much easier to download at higher speeds. Back to suprnova.org. Look at the columns:

Added | Name | Filesize | Seeds | DLs (and a few more which aren't very useful.) I'll break this down.

Added: Self explanitory, its the date the torrent was added.

Name: Also self explanitory.

Filesize: Duh

Seeds: This is how many people are strictly UPLOADING, or sharing. These people are the ones that keep

.torrent files alive. By "alive", I mean, if there's no one sharing the .torrent file, no one can download.

DLs: This is how many people currently downloading that particular torrent. They also help keep the torrent alive as they share while they download.

It's always best to download using a torrent that has a decent amount of seeders and downloaders, this way you can be assured there's a good chance your download will finish. The more the better.

Now that you should understand how torrent files work, and how to use them, on to Azureus! First, get JAVA! You need this to run Azureus, as java is what powers it. Get Java here:

/http://java.sun.com/j2se/1.4.2/download.html

Next, get Azureus at: /http://azureus.sourceforge.net

Next, get the Suprnovalister plugin from /http://s93732957.onlinehome.us/storage/suprnovalister.jar Install Java JRE before you do ANYTHING.

Install Azureus, and then in the installation folder, create 2 more folders. ./Plugins/suprnovalister (For example, if you installed Azureus to C:\PROGRAM FILES\AZUREUS, create C:\PROGRAM

FILES\AZUREUS\PLUGINS\SUPRNOVALISTER). Next, put the suprnovalister.jar file that you downloaded, in that folder.

Load up Azureus, and if you want, go through the settings and personalize it.

The tab labeled "My Torrents" is the section of Azureus you need the most often. That lists all your transfers, uploads and downloads. It shows every bit of information you could possibly want to know about torrents you download.

In the menu bar, go to View > Plugins > Suprnova Lister. This will open up a new tab in Azureus. Click on "Update Mirror". This will get a mirror site of suprnova.org containing all current torrent files available.

Once a mirror is grabbed, choose a category from the drop-down box to the left and click "Update". Wah-lah, all the available downloads appear in the main chart above. Just double click a download you want, and bang its starting to download. Open the "My Torrents" tab again to view and make sure your download started.

After your download has finished, be nice, and leave the torrent transferring. So people can get pieces of the file from you, just as you got pieces from other people.

Alternatively, if you don't want to use the plugin... you can just head to suprnova.org and download files to any folder. Then go to File > Open > .torrent File in Azureus.

This should about wrap it up for the Bit Torrent Tutorial. If you guys think of anything I should add, or whatnot, just let me know and I'll check into it.

Matrix Effect Using Notepad

        I had previously posted about Matrix effect using Notepad . But this is more advance and it looks more realistic then the previous one. So open up your notepad and get started.

How To Create Matrix File ?

  1. Open Notepad and copy below code.

@echo off

 color 0A

 :A

echo b r E w e 4 e T r 8 M e F r a c h a S t 3 D a C r a s p e s T e 4 h 2 w r e G 2 

ping -w .9 >nul

 echo R E 9 8 8 R a t r e g 6 n u m A b R E X e Y A T u C 7 a D R a c r u C e B E p e 

ping -w .9 >nul

 echo c E B E s A d R u B R 3 H e R u D 7 g u d U 7 T a b u T 5 e p E 2 a v e 6 8 a Z 

ping -w .9 >nul

 echo n u r A X a j a s t a 9 h a 6 e h e G a s u t r a t r A y a f E q u 8 u b R u d 

ping -w .9 >nul

 echo k u v e 4 E 6 3 e t r a d r e f e y e q e 6 U H e z U b r u R a s 2 4 3 r A N a 

ping -w .9 >nul

 echo v u P R a b R u c e d U s w a h a c r a t h U 7 r a h u t u h u V e 7 U k u S a 

ping -w .9 >nul

 echo T e D r e 8 A p r a d a b u f U c u c E h E t 7 c r 5 s P a f r e t h u t 9 u t  

ping -w .9 >nul

 echo b R u G e p a R e s a P H e P a 2 U d 4 P r e F A b a t h a t h U s w a d R U d 

ping -w .9 >nul

 echo v U Y a C R e T R 9 k u b e D r a T 6 u j e 5 2 4 e B a f 2 u b 5 w A p a y U Y 

ping -w .9 >nul

 echo b r E w e 4 e n r 8 M e F r a c h a S t 3 D a C r a s p e s T e 4 a 2 w r e G 2 

ping -w .9 >nul

 echo k u v e 4 E 6 3 e t r a d r e f e y e q e 6 U H e z U b r u R a s 2 4 3 r A N a 

ping -w .9 >nul

 echo v u P R a b s u c e d U s w a 3 a c r a t h U 7 r a k u t u h u V e 7 U k u S a 

ping -w .9 >nul

echo n u r A X a j a s t a 9 h a 6 e h e G a s u t r a t r A y a f E q u 8 u b u u d 

ping -w .9 >nul

goto A

 2. Save the file as matrix.bat  (.bat is must) 

3. Done enjoy !

How to download Torrent file with IDM

1. First of all , you have to download the torrent file(.torrent) which you want to download...!

2. Then just go to the website http://www.torcache.net/ OR GO TO www.zbigz.com and upload the torrent file that you have just downloaded and click on the cache! button..,,!

3. This will give you a new torrent file . You just have to copy the link of the new torrent file from the opened window..,,..!

4. Then go to the website http://www.torrific.com/ and create an account there(in case you don’t have) and login to your account. Then paste the address of the new torrent obtained in step 3 and click on Get button.,.,,...!

5. Now you will get the list of available files present in that torrent file. Then click on the initiate bittorrent transmission button. This will give the full option to download the file. Just click on any link and you can see the download manager-IDM popping out for downloading the file.,.,.!!