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No empty constructor when create a service
I am struggling with this error:
4 Answers
4
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How can I do division with variables in a Linux shell?
...mmands in my shell as below, it returns an expr: non-integer argument error. Can someone please explain this to me?
6 Ans...
Factory pattern in C#: How to ensure an object instance can only be created by a factory class?
...an object can never be created directly, but only via some method of a factory class. Let us say I have some "business object" class and I want to make sure any instance of this class will have a valid internal state. In order to achieve this I will need to perform some check before creating an obje...
How can I get the font size and font name of a UILabel?
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Does not work. I can write text in it, but the fontName and pointSize is null.
– Tim
Feb 2 '11 at 9:18
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Read a file line by line assigning the value to a variable
...t read from file: $line"
done < my_filename.txt
This is the standard form for reading lines from a file in a loop. Explanation:
IFS= (or IFS='') prevents leading/trailing whitespace from being trimmed.
-r prevents backslash escapes from being interpreted.
Or you can put it in a bash file he...
Generating Guids in Ruby
...y 1.9, uuid generation is built-in. Use the SecureRandom.uuid function.
For example:
require 'securerandom'
SecureRandom.uuid # => "96b0a57c-d9ae-453f-b56f-3b154eb10cda"
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How to get complete month name from DateTime
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Use the "MMMM" custom format specifier:
DateTime.Now.ToString("MMMM");
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Clear text from textarea with selenium
I've got some tests where I'm checking that the proper error message appears when text in certain fields are invalid. One check for validity is that a certain textarea element is not empty.
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How to disable “Save workspace image?” prompt in R?
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You can pass the --no-save command line argument when you start R, or you can override the q function:
utils::assignInNamespace(
"q",
function(save = "no", status = 0, runLast = TRUE)
{
.Internal(quit(save, status, runLast))
},
"base"
)
Put the above code in your .Rprofil...
Hour from DateTime? in 24 hours format
...Time? and what i want to do is to obtain the hour but show it in 24 hours format.
For example:
If the hour is 2:20:23 p.m. i want to convert it to 14:20 and that's it.
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