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How to check if BigDecimal variable == 0 in java?
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Use compareTo(BigDecimal.ZERO) instead of equals():
if (price.compareTo(BigDecimal.ZERO) == 0) // see below
Comparing with the BigDecimal constant BigDecimal.ZERO avoids having to construct a new BigDecimal(0) every execution....
How are “mvn clean package” and “mvn clean install” different?
...ween mvn clean package and mvn clean install ? When I run both of these commands, they both seem to do the same thing.
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How to select multiple files with ?
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RelativeLayout is taking fullscreen for wrap_content
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edited Jun 20 at 9:12
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answered Jun 26 '11 at 20:15
user658042user65804...
Set selected radio from radio group with a value
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Check if an apt-get package is installed and then install it if it's not on Linux
...s, too.
dpkg-query -l <packagename>
To find what package owns the command, try:
dpkg -S `which <command>`
For further details, see article Find out if package is installed in Linux and dpkg cheat sheet.
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Commenting code in Notepad++
...d any means (not the manual way but something like in Emacs) to do a block comment in my code.
10 Answers
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how does multiplication differ for NumPy Matrix vs Array classes?
The numpy docs recommend using array instead of matrix for working with matrices. However, unlike octave (which I was using till recently), * doesn't perform matrix multiplication, you need to use the function matrixmultipy(). I feel this makes the code very unreadable.
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npm install vs. update - what's the difference?
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