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Java how to replace 2 or more spaces with single space in string and delete leading and trailing spa
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Try this:
String after = before.trim().replaceAll(" +", " ");
See also
String.trim()
Returns a copy of the string, with leading and trailing whitespace omitted.
regular-expressions.info/Repetition
No trim() regex
It's also possible to do this with just one re...
Error: must call SetScrollSizes() or SetScaleToFitSize()问题的解决 - C...
Error: must call SetScrollSizes() or SetScaleToFitSize()问题的解决我的程序原来是基于CView的，但后来为了支持滚动功能所以按照网上的方法，手动把CView改为CScrollView（一些相应的处理都改了），但是程序...我的程序原来是基于CView的，但...
解决IIS发布时global_asax的dll 的CS0433冲突问题 - 更多技术 - 清泛网 - ...
解决IIS发布时global_asax的dll 的CS0433冲突问题Server Error in ' ' Application.Compilation ErrorDescription:An error occurred during the compilation of a re...Server Error in '/' Application.
Compilation ErrorDescription: An error occurred during the compilation of a resource required t...
Metadata file '.dll' could not be found
I am working on a WPF, C# 3.0 project, and I get this error:
91 Answers
91
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How to retrieve all keys (or values) from a std::map and put them into a vector?
... to read depending on the skill level of your fellow programmers. Additionally, it moves functionality away from the call site. Which can make maintenance a little more difficult.
I'm not sure if your goal is to get the keys into a vector or print them to cout so I'm doing both. You may try somet...
Expanding a parent to the height of its children
...low:auto means that the browser should decide which value to apply. What really does the trick is overflow: overlay.
– Alba Mendez
Jul 30 '11 at 12:05
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Unit Testing AngularJS directive with templateUrl
...Through() still didn't work for me. It still gave the "Unexpected request" error.
– frodo2975
Dec 29 '15 at 20:43
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What does Ruby have that Python doesn't, and vice versa?
There is a lot of discussions of Python vs Ruby, and I all find them completely unhelpful, because they all turn around why feature X sucks in language Y, or that claim language Y doesn't have X, although in fact it does. I also know exactly why I prefer Python, but that's also subjective, and would...
How can I copy the output of a command directly into my clipboard?
... down the complete procedure just in case anyone else needs it.
First install a 16 kB program called xclip:
sudo apt-get install xclip
You can then pipe the output into xclip to be copied into the clipboard:
cat file | xclip
To paste the text you just copied, you shall use:
xclip -o
To si...
How do you round to 1 decimal place in Javascript?
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105
var number = 123.456;
console.log(number.toFixed(1)); // should round to 123.5
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