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CATALINA_OPTS vs JAVA_OPTS - What is the difference?
... find out the difference between Apache Tomcat variables - CATALINA_OPTS and JAVA_OPTS in SO and surprised to see that there is no question/answer posted here yet. So I thought of sharing it here (with answer) after finding out the difference. Check the answer/difference below.
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Rails - Nested includes on Active Records?
...ts that I fetch.
I'm trying to include every user associated to this event and every profile associated to each user. The Users get included but not their profiles.
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Finding last occurrence of substring in string, replacing that
So I have a long list of strings in the same format, and I want to find the last "." character in each one, and replace it with ". - ". I've tried using rfind, but I can't seem to utilize it properly to do this.
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Checking if a folder exists (and creating folders) in Qt, C++
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Why it isn't static? QDir::exists("absolutepath") and QDir::mkdir(""absolutepath")
– yalov
Jun 19 '17 at 17:20
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Pass variables to Ruby script via command line
I've installed RubyInstaller on Windows and I'm running IMAP Sync but I need to use it to sync hundreds of accounts. If I could pass these variables to it via command line I could automate the whole process better.
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Disable soft keyboard on NumberPicker
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Just found this and it works like a charm:
myNumberPicker.setDescendantFocusability(NumberPicker.FOCUS_BLOCK_DESCENDANTS);
You can also set this in XML:
android:descendantFocusability="blocksDescendants"
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how to rotate a bitmap 90 degrees
There is a statement in android canvas.drawBitmap(visiblePage, 0, 0, paint);
10 Answers
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How to add text at the end of each line in Vim?
... you can specify them in place of the %.
One way is to do a visual select and then type the :. It will fill in :'<,'> for you, then you type the rest of it (Notice you only need to add s/$/,/)
:'<,'>s/$/,/
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What does the caret (^) character mean?
...that git commits can have more than one parent. HEAD^ is short for HEAD^1, and you can also address HEAD^2 and so on as appropriate.
You can get to parents of any commit, not just HEAD. You can also move back through generations: for example, master~2 means the grandparent of the tip of the master ...
Does Parallel.ForEach limit the number of active threads?
...uses an appropriate number of cores, based on how many you physically have and how many are already busy. It allocates work for each core and then uses a technique called work stealing to let each thread process its own queue efficiently and only need to do any expensive cross-thread access when it ...