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Key existence check in HashMap
Is checking for key existence in HashMap always necessary?
10 Answers
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Converting BigDecimal to Integer
I have Hibernate method which returns me a BigDecimal.
I have another API method to which I need to pass that number but it accepts Integer as parameter. I cannot change return types or variable types of both methods.
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Find and replace in file and overwrite file doesn't work, it empties the file
I would like to run a find and replace on an HTML file through the command line.
13 Answers
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iPhone and OpenCV
I know that OpenCV was ported to Mac OS X , however I did not find any info about a port to the iPhone.
13 Answers
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Why does this Java program terminate despite that apparently it shouldn't (and didn't)?
A sensitive operation in my lab today went completely wrong. An actuator on an electron microscope went over its boundary, and after a chain of events I lost $12 million of equipment. I've narrowed down over 40K lines in the faulty module to this:
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Python list directory, subdirectory, and files
I'm trying to make a script to list all directory, subdirectory, and files in a given directory.
I tried this:
7 Answers
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Ignore outliers in ggplot2 boxplot
How would I ignore outliers in ggplot2 boxplot? I don't simply want them to disappear (i.e. outlier.size=0), but I want them to be ignored such that the y axis scales to show 1st/3rd percentile. My outliers are causing the "box" to shrink so small its practically a line. Are there some techniques...
On delete cascade with doctrine2
I'm trying to make a simple example in order to learn how to delete a row from a parent table and automatically delete the matching rows in the child table using Doctrine2.
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How to see top processes sorted by actual memory usage?
I have a server with 12G of memory. A fragment of top is shown below:
12 Answers
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How to get the last element of a slice?
What is the Go way for extracting the last element of a slice?
2 Answers
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