All Questions

2
answers

CAST: difference between "(String) arg" and "String.class.cast (arg)"

I wonder if there is a difference between: String a = (String) arg; and cast class: String a = String.class.cast(arg); I once heard that using the static cast class is more performative, is this true?     
asked on 06.07.2015 / 14:20
2
answers

Date of database returning 31/12/1969

I have in my script a call to date and to start for me brings me a date of 12/31/1969, not the date that is in the database. data. This is my Code: @$pag = "$_GET[pag]"; if($pag >= '1'){ $pag = $pag; }else{...
asked on 30.09.2015 / 20:03
2
answers

What is the purpose of the ":: before" and "after" pseudo-elements?

I find many codes that use these pseudo-elements and I get "flying" when I see them. The few tutorials I found on the internet did not explain clearly and I was even more doubtful. After all, what is their purpose / function?
asked on 12.01.2016 / 14:28
2
answers

What is the difference between Ajax's dataTypes in jQuery?

I'm learning jQuery and need to know the difference between Ajax's dateTypes. dataType: "xml" dataType: "json" dataType: "script" dataType: "html" How does this influence script execution and result r...
asked on 29.07.2015 / 20:01
1
answer

How to do to bring table with data when returning from an insert

I have edited the post question because I consider it to be the most logical solution to the question. I have a page with 3 tabs and in one of these I upload files to my hosting and send the necessary information to the database, I am adding an...
asked on 30.07.2015 / 00:24
3
answers

Keep application (Windows Form) open in the icon tray with C #

When you close the application (either close button, ALT F4 , or any method other than the process manager), continue running in the Windows Icon Tray: And is it too complicated to make a menu when you click the context button (usual...
asked on 07.10.2015 / 12:43
1
answer

What is the git diff command for?

I asked this question shortly here on SOPT . There were some questions, and then the user @AnthonyAccioly asked me to ask this question. What is the git diff ?     
asked on 12.08.2015 / 17:21
1
answer

How does the default Java constructor work?

How is the default Java constructor? Is this? public Pessoa(){ super(); }     
asked on 02.10.2014 / 18:16
2
answers

ListView or GridView in Windows Forms

I am studying about Windows Forms Application . I did a tutorial where the ListView is used to display the data of a search according to the parameters passed. But I noticed that there is also GridView to use in the toolbox. And in this o...
asked on 29.04.2015 / 22:05
3
answers

How to manipulate large volumes of data in a database?

I have a process that I need to implement on my system which, at a certain point, will check a relatively large number of data and, if it does not find it, should save to the MySQL database. I'm not finding a way to do this without overloading...
asked on 30.05.2015 / 22:52