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How do I create a right click context menu in Java Swing?
...stener(new PopClickListener());
Of course, the tutorials have a slightly more in-depth explanation.
Note: If you notice that the popup menu is appearing way off from where the user clicked, try using the e.getXOnScreen() and e.getYOnScreen() methods for the x and y coordinates.
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In vim, how do I get a file to open at the same line number I closed it at last time?
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Why is my Git Submodule HEAD detached from master?
...epo which is the submodules commit hash
# to track so you don't see it anymore as untracked.
But if you managed to make some changes locally already for submodule and commited, pushed these to remote then when you executed 'git checkout ', Git notifies you:
$ git checkout <branch>
Warning:...
How to set the text color of TextView in code?
... I'm not sure what you mean? As in, dereferenced and so will use more resources or do you mean something else?
– Nanne
Aug 15 '13 at 6:41
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Fastest way to get the first object from a queryset in django?
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Imitating a blink tag with CSS3 animations
... <span class="blink">blinking</span> text.
You can find more info about Keyframe Animations here.
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How do I find the width & height of a terminal window?
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Remove columns from dataframe where ALL values are NA
...h will be an object the same size as df.
Here are two approaches that are more memory and time efficient
An approach using Filter
Filter(function(x)!all(is.na(x)), df)
and an approach using data.table (for general time and memory efficiency)
library(data.table)
DT <- as.data.table(df)
DT[,w...
How to check if a symlink exists
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