All Questions

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Leave program done in Swing with Windows appearance

I'm developing application with Java Swing, but the screens are not getting windowed out of windows. Example screen. I wanted to leave Windows with the same face, with the title bar with minimize button, maximize and close. The way it i...
asked on 20.08.2016 / 04:20
2
answers

LIKE query performance in MySQL

Is there any way to increase the performance of a query with LIKE '%string%' in MySQL? I know that if LIKE is 'string%' , it is faster. The problem is when % is at the beginning of the string. Is there some sort of...
asked on 13.08.2014 / 03:33
1
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How do I throw my own exceptions with PDO?

When executing the line below, in the constructor of my database access class: $this->pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); The PDO will report errors by throwing exceptions of type PDOException . Is ther...
asked on 24.01.2014 / 04:13
1
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How to improve this: Hell callback?

I'm finishing the development of an ad system, the system uses the redis server to save data and display campaigns directly from ram, since the pathology of these systems requires a lot of disk consumption. At every x time I need to get the valu...
asked on 19.09.2018 / 17:09
3
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Check if a date and time (timestamp) represents the current day

I have a table with the following field: dh_envio (TIMESTAMP) and I want to mount a query to get all the records of this table in which the dh_envio is equal to the current date (TODAY). I thought of it as follows: WHERE dh.envio BEETWEEN '...
asked on 18.02.2014 / 02:13
1
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How to turn E_PARSE errors into Exception in PHP?

My question is: PHP has a great feature that allows you to convert errors that can occur in an application to Exceptions . This can be done through the class ErrorException Example: set_error_handler(function ($errno, $errst...
asked on 15.01.2015 / 18:15
2
answers

How to capture audio from microphone using HTML5 audio API?

How do I capture audio from the microphone using the HTML5 Audio API and play it at the same time?     
asked on 03.04.2014 / 18:59
1
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Lines with same height in table in the Latex

I need to reproduce in Latex a table with 3 columns and 5 rows. It should use the full width of the paragraph, center the contents of the cells both horizontally and vertically, and auto-adjust longer texts. But above all, it must have the same...
asked on 07.07.2014 / 19:40
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What is the correct way to declare a WebMethod asmx in C # to receive POST requests with parameters?

I'm trying to put together a file upload process for a web service done in c # .asmx but I'm not able to manipulate the sending of parameters through the POST method. This is the webMethod I created: [WebMethod] [SoapHeader("UserAu...
asked on 22.08.2014 / 21:27
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How to download automatic in site that calls JavaScript?

I need to make a program that downloads PDFs from several sites daily and automatically. It is very easy to perform this operation using the C # WebClient command, however, on certain sites it is not possible to find the download URL in any way....
asked on 30.05.2014 / 16:33