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Is it good practice to make the constructor throw an exception? [duplicate]
...ke the constructor throw an exception?
For example I have a class Person and I have age as its only attribute. Now
I provide the class as
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What is the advantage of GCC's __builtin_expect in if else statements?
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Ohh i understand. So you mean since there is a high probability for x = 0 so the bar is given first. And foo, is defined later since it's chances (rather use probability) is less, right?
– kingsmasher1
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Site stopped working in asp.net System.Web.WebPages.Razor.Configuration.HostSection cannot be cast t
...g contains the proper version for the assembly "System.Web.WebPages.Razor" and "System.Web.Mvc". Check for their actual existence as well as my "System.Web.WebPages.Razor" assembly tag was missing causing the error. I had my assembly versions set to 3.0 and 5.0 respectively in the time of this writ...
SQL Server Restore Error - Access is Denied
I created a database on my local machine and then did a backup called tables.bak of table DataLabTables .
19 Answers
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@RequestBody and @ResponseBody annotations in Spring
Can someone explain the @RequestBody and @ResponseBody annotations in Spring 3? What are they for? Any examples would be great.
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Regex doesn't work in String.matches()
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Welcome to Java's misnamed .matches() method... It tries and matches ALL the input. Unfortunately, other languages have followed suit :(
If you want to see if the regex matches an input text, use a Pattern, a Matcher and the .find() method of the matcher:
Pattern p = Pattern.comp...
How do I make Git use the editor of my choice for commits?
... variable: export GIT_EDITOR=vim
If you want to set the editor for Git and also other programs, set the standardized VISUAL and EDITOR environment variables*:
export VISUAL=vim
export EDITOR="$VISUAL"
* Setting both is not necessarily needed, but some programs may not use the more-correct VIS...
bash: pip: command not found
I downloaded pip and ran python setup.py install and everything worked just fine. The very next step in the tutorial is to run pip install <lib you want> but before it even tries to find anything online I get an error "bash: pip: command not found".
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Validate decimal numbers in JavaScript - IsNumeric()
...ring this set of +30 unit tests made to numerous function implementations, and also share the one that passes all my tests:
function isNumeric(n) {
return !isNaN(parseFloat(n)) && isFinite(n);
}
P.S. isNaN & isFinite have a confusing behavior due to forced conversion to number. In...
What's the longest possible worldwide phone number I should consider in SQL varchar(length) for phon
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Well considering there's no overhead difference between a varchar(30) and a varchar(100) if you're only storing 20 characters in each, err on the side of caution and just make it 50.
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