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Java how to replace 2 or more spaces with single space in string and delete leading and trailing spa
...mpty string
(_)+ : any sequence of spaces that matches none of the above, meaning it's in the middle
Match and replace with $1, which captures a single space
See also
regular-expressions.info/Anchors
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Windows: XAMPP vs WampServer vs EasyPHP vs alternative [closed]
...a bit more work, yes; but knowing how to install and configure your environment is great -- and useful.
The first time, you'll need maybe half a day or a day to configure those. But, at least, you'll know how to do so.
And the next times, things will be far more easy, and you'll need less time.
E...
How can I distinguish whether Switch,Checkbox Value is changed by user or programmatically (includin
How to implement method isNotSetByUser() ?
16 Answers
16
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Save plot to image file instead of displaying it using Matplotlib
...enerate plots on the fly. I am using the code below (from Matplotlib documentation) as a starting point:
20 Answers
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How to set JAVA_HOME in Linux for all users
...ged user, ie. sudo vim
Press 'i' to get in insert mode
add:
export JAVA_HOME="path that you found"
export PATH=$JAVA_HOME/bin:$PATH
logout and login again, reboot, or use source /etc/profile to apply changes immediately in your current shell
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Modifying the “Path to executable” of a windows service
...c command line instead of modifying the registry:
sc config <service name> binPath= <binary path>
Note: the space after binPath= is important. You can also query the current configuration using:
sc qc <service name>
This displays output similar to:
[SC] QueryServiceConfig...
How do I set the proxy to be used by the JVM
Many times, a Java app needs to connect to the Internet. The most common example happens when it is reading an XML file and needs to download its schema.
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Cannot create an array of LinkedLists in Java…?
... to use an array of LinkedList to store the values of a matrix. Each element of the array (i.e. each LinkedList ) represents a row of the matrix. And, each element in the LinkedList array represents a column and the stored value.
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No module named _sqlite3
...a Django app on my VPS running Debian 5. When I run a demo app, it comes back with this error:
21 Answers
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How to fix .pch file missing on build?
...er versions of the IDE may use "pch" rather than "stdafx" in the default names for related files. It may be necessary to substitute pch for stdafx in the instructions below. I apologize. It's not my fault.
Right-click on your project in the Solution Explorer.
Click Properties at the bottom of t...