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Safely casting long to int in Java
What's the most idiomatic way in Java to verify that a cast from long to int does not lose any information?
10 Answers
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Implement C# Generic Timeout
I am looking for good ideas for implementing a generic way to have a single line (or anonymous delegate) of code execute with a timeout.
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shortcut for creating a Map from a List in groovy?
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I've recently came across the need to do exactly that: converting a list into a map. This question was posted before Groovy version 1.7.9 came out, so the method collectEntries didn't exist yet. It works exactly as the collectMap method that was proposed:
Map rowToMap(row) {
row.co...
Converting A String To Hexadecimal In Java
I am trying to convert a string like "testing123" into hexadecimal form in java. I am currently using BlueJ.
21 Answers
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How do I fix the indentation of an entire file in Vi?
In Vim, what is the command to correct the indentation of all the lines?
16 Answers
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cocktail party algorithm SVD implementation … in one line of code?
In a slide within the introductory lecture on machine learning by Stanford's Andrew Ng at Coursera, he gives the following one line Octave solution to the cocktail party problem given the audio sources are recorded by two spatially separated microphones:
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With Mercurial, how can I “compress” a series of changesets into one before pushing?
...t's say I have a local and a remote Mercurial repository. Now, I start working on a feature. I work on it, and when I think it's done, I commit the changeset. Testing it a bit more, I find that I could further improve this feature by tweaking something in the code. I make the change and commit. 20 m...
Jenkins on OS X: xcodebuild gives Code Sign error
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Keychains need to be unlocked before they can be used. You can use security unlock-keychain to unlock. You can do that interactively (safer) or by specifying the password on the command line (unsafe), e.g.:
security unlock-keychai...
Difference between a class and a module
I came from Java, and now I am working more with Ruby.
9 Answers
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Git: How do I list only local branches?
...git branch without options.
From the manpage:
With no arguments, existing branches are listed and the current branch will be highlighted with an asterisk.
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