All Questions

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How to convert string to double without rounding error?

Because the following command: Convert.ToDouble("199998,99") Results in:    199998.98999999999 Already the command: Convert.ToDouble("199998,98") Results in:    199998.98000000001 ?     
asked on 31.07.2015 / 14:47
1
answer

How does printf work?

How does the code behind the function printf() of C work? I know what this function does, I want to know how it works.     
asked on 04.08.2015 / 21:51
1
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How to make a wrong user entry not bug the program?

Example, I declare the menu option as int , hence the little bug goes there and types a letter or a special character and this will make the program bugar. The question is: can you solve this? Example: int opc; printf("Digite uma opçã...
asked on 13.06.2015 / 15:28
1
answer

Is there any way to bend a text with CSS or leave the text bent in a line?

Is there any way to put text in this format without having to use an image? Or I would like to make some kind of crooked text, but I could not do it. The idea would be to do something close to that image, but only with code to facilitate quic...
asked on 21.09.2018 / 19:30
2
answers

SQL SERVER Data counting of a record

I came across the following situation: The table below is a checklist and has a column of covenants, the others are questions answered with yes (1), no (0) and noFill (null or 9). I wanted to tell in each agreement how many of the questions...
asked on 20.09.2018 / 15:49
3
answers

on ('change') shoot at every click

How do I do that every time I choose an option it triggers an event. In the example below it is already with the selected one. I wanted that even if I choose it again it shoots without having to switch between one and another $('select').o...
asked on 15.10.2018 / 19:59
2
answers

Integration between MailChimp and React Native app

I am a beginner in React Native. I'm basically trying to perform the integration between my application in React Native and MailChimp, what I want to do is: From the moment the user provides us with their email, and send the form, then an email...
asked on 05.09.2018 / 14:41
2
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How to implement a queue using two stacks

Hello, I need to implement a queue using two stacks, that is, I need to insert an integer in stack 1, and when I remove an element all the items in stack 1 must be transferred to stack 2, then make it look like with a queue. Items in stack 1 c...
asked on 08.09.2018 / 23:01
1
answer

PHP \ xf0 represents 0xF0?

If \xF0 represents a hex as well as 0xF0 , why are their output different? echo "\xF0"; echo 0xF0; I actually do not find any information about this \xF0 notation in the PHP manual.     
asked on 26.10.2018 / 20:06
1
answer

What is the padding for the Bootstrap container?

What does padding of% Bootstrap% use if container has row negative that cancels margin ? If I want my entire page to have a padding so it does not stick to the edge like I do?     
asked on 25.09.2018 / 15:55