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Why use a prime number in hashCode?
I was just wondering why is that primes are used in a class's hashCode() method? For example, when using Eclipse to generate my hashCode() method there is always the prime number 31 used:
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Force add despite the .gitignore file
Is there a way to force git to add a file despite the .gitignore file?
3 Answers
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Excluding directories in os.walk
I'm writing a script that descends into a directory tree (using os.walk()) and then visits each file matching a certain file extension. However, since some of the directory trees that my tool will be used on also contain sub directories that in turn contain a LOT of useless (for the purpose of thi...
JavaScript private methods
To make a JavaScript class with a public method I'd do something like:
30 Answers
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Can I export a variable to the environment from a bash script without sourcing it?
Suppose that I have this script
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Why can I type alias functions and use them without casting?
In Go, if you define a new type e.g.:
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How to deal with page breaks when printing a large HTML table
I have a project which requires printing an HTML table with many rows.
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Android EditText delete(backspace) key event
How can I detect delete (backspace) key event for a editText? I've tried using TextWatcher, but when the editText is empty, when I press delete key, nothing happens. I want to detect delete key press foe an editText even if it has no text.
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Do you debug C++ code in Vim? How? [closed]
The question is to all you people, who use Vim to develop C++ applications.
9 Answers
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How to make a Java thread wait for another thread's output?
I'm making a Java application with an application-logic-thread and a database-access-thread.
Both of them persist for the entire lifetime of the application and both need to be running at the same time (one talks to the server, one talks to the user; when the app is fully started, I need both of t...