All Questions

1
answer

What is JNDI technology?

I'm starting studies on enterprise applications, and according to my teacher I'm going to need this java technology and would like to know what JNDI is exactly. If possible I wanted an example of its use.     
asked on 26.11.2015 / 18:44
1
answer

Xms, Xmx, XX: MaxPermSize, XX: PermSize - What's the difference?

I need to improve the performance and availability of my Glassfish application server which from time to time causes the application to throw OutOfMemory error. Searching the internet, I checked that I should change the following parameters: X...
asked on 23.10.2014 / 14:59
4
answers

What is the purpose of the :: (double colon) in the Angular?

I saw in some English SO question an AngularJS code that was using double colons before the variable. Example: {{ ::nome_variavel }} The normal thing is: {{ nome_variavel }} What is the difference between the two? What is the differ...
asked on 19.09.2016 / 19:01
2
answers

What are the differences between Kanban and Scrum?

It seems like it's impossible to work on programming today and not know the agile methodologies of development. I have a notion that both are used to improve team performance and integration when developing code, but I have difficulty deferrin...
asked on 29.05.2017 / 19:07
7
answers

What is the difference of these parameters (array) in these methods?

I see this a lot in methods class Exemplo { public function exemplo1(array $parameters = array()) { } public function exemplo2(array $parameters) { } public function exemplo3($parameters = array()) { } }...
asked on 30.01.2015 / 14:55
0
answers

WebService Registering dll

I have the following code: CoInitialize(nil); try DM_Principal.pLarWS := CreateComObject(LarWS_TLB.CLASS_WS) as IWS; except WinExec( 'regasm LarWS.dll /tlb:LarWS.tlb',SW_HIDE); Screen.Cursor := crHourGlass; Sleep(3000);...
asked on 13.04.2018 / 13:37
4
answers

Interaction between forms?

In my program, I inserted a button and a panel . When the button is clicked, logic inserts another form in panel overlapping form initial. No form2 that appears has a return button, which causes form2 to add...
asked on 29.07.2015 / 23:06
3
answers

What is the base64 encoding for?

Virtually every programming language one deserves has its implementation of encoding and decoding from a string to a string in Base64 characters. But what is Base64 itself for? Thank you!     
asked on 05.03.2015 / 13:14
4
answers

What does "0x" mean in hexadecimal numbers?

I have noticed that when it comes to hexadecimal numbers, sometimes a "0x" is placed in the front. Example:    0xA1B2C3 instead of    A1B2C3 What does this "0x" mean?     
asked on 10.07.2014 / 17:49
5
answers

Error passing URL as parameter ... JoeBlogs & HtmlAgilityPack

Main namespace ReaderXML { class Program { static void Main(string[] args) { var website = LeitorDeXML("http://SITE ORIGEM/").ToArray(); var total = website.Count(); for (int i = 1; i...
asked on 20.05.2015 / 22:15