All Questions

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What is the difference between NULL and null?

Is there any difference between NULL (written in upper case) and null (written in lowercase) in PHP? I know I can use both types, but is there any naming rule for these words?     
asked on 19.09.2017 / 23:05
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How to print an array with indexes and values in PHP?

I have the following array in PHP: $matriz['HGF']['Christus'] = 7; $matriz['HGF']['Unifor'] = 6; $matriz['HIAS']['Christus'] = 5; $matriz['HIAS']['Unifor'] = 4; I would like to print the array in html, displaying indexes and values, like th...
asked on 26.10.2017 / 16:31
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PHP Plugin Sublime text 3

Does anyone know the name of the PHP plugin that shows a description of the php function in my IDE when I put the cursor on it? By EX: function: str_replace(); When you put the mouse over it, a description of what it does, and what it do...
asked on 13.10.2017 / 14:23
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Arrange the bars of a bar chart in the R

I am plotting the following data in R to generate a bar graph: structure(c(5483L, 28034L, 7995L, 5199L, 6785L, 7452L, 7692L), .Dim = 7L, .Dimnames = structure(list(c("dom", "qua", "qui", "sáb", "seg", "sex", "ter")), .Names = ""), class = "tab...
asked on 06.11.2017 / 22:05
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Can I create a Win32 application in C #?

I am aware that C # is the right arm of the .NET Framework, and that the default language for programming Win32 applications is C ++. But, can I program an application in C #, regardless of any .NET Framework library? In other words, I can cr...
asked on 08.08.2017 / 05:53
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What is the purpose of internal lateinit?

I converted to Kotlin a simple Fragment with any button. In the alternation, it basically looks like this: Java private Button btn; Kotlin internal lateinit var btn: Button What is the goal of internal lateinit ?...
asked on 09.08.2017 / 17:26
2
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What is the difference between async Task and void?

I use async Task with await when I need my code to wait for this task to complete until I run another process. In the case of void methods, without async-await , does my code also not "wait" to execute another proce...
asked on 27.07.2017 / 18:30
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What error is this? "Could not find method schedule (View) in"

I'm calling a method, when I click the button and this error appears, but I do not know what it means:    java.lang.IllegalStateException: Could not find method (View) in a parent or ancestor Context for android: onClick attribute defined on...
asked on 05.09.2017 / 20:54
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Various Books for Author

Recently, I asked a question about my problem, but it was kind of difficult to understand, here I will try to summarize my problem. I'm using ASP.NET MVC. I have 2 tables: Autores and Livros , where 1 Autor has many...
asked on 04.12.2015 / 13:08
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How to check if a File can be created in a Folder before trying to create it in it?

My program allows the user to define a Folder, and later the program will create a New File in this Folder. However, the program is not able to create a file in any folder, for example:    Creates the new file in the folder normally:...
asked on 02.09.2017 / 22:21