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What does “Could not find or load main class” mean?
A common problem that new Java developers experience is that their programs fail to run with the error message: Could not find or load main class ...
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How does `scp` differ from `rsync`?
An article about setting up Ghost blogging says to use scp to copy from my local machine to a remote server:
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Delete column from pandas DataFrame
When deleting a column in a DataFrame I use:
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How to prevent a dialog from closing when a button is clicked
I have a dialog with EditText for input. When I click the "yes" button on dialog, it will validate the input and then close the dialog. However, if the input is wrong, I want to remain in the same dialog. Every time no matter what the input is, the dialog should be automatically closed when I clic...
How to get back to most recent version in Git?
I have recently moved from SVN to Git and am a bit confused about something. I needed to run the previous version of a script through a debugger, so I did git checkout <previous version hash> and did what I needed to do.
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How does the algorithm to color the song list in iTunes 11 work? [closed]
The new iTunes 11 has a very nice view for the song list of an album, picking the colors for the fonts and background in function of album cover. Anyone figured out how the algorithm works?
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Cross cutting concern example
What is a good example of a cross-cutting concern ? The medical record example on the wikipedia page seems incomplete to me.
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Is a successor for TeX/LaTeX in sight? [closed]
TeX/LaTeX is great, I use it in many ways. Some of its advantages are:
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Loop through all the files with a specific extension
I want to loop through each file in the current folder and check if it matches a specific extension. The code above doesn't work, do you know why?
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What's wrong with using == to compare floats in Java?
According to this java.sun page == is the equality comparison operator for floating point numbers in Java.
21 Answers
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