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Storing SHA1 hash values in MySQL
...d just waste an additional byte for the length of the fixed-length field.
And I also wouldn’t store the value the SHA1 is returning. Because it uses just 4 bit per character and thus would need 160/4 = 40 characters. But if you use 8 bit per character, you would only need a 160/8 = 20 character l...
How to get a list of installed android applications and pick one to run
...sked a similar question to this earlier this week but I'm still not understanding how to get a list of all installed applications and then pick one to run.
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What does (angle brackets) mean in Java?
I am currently studying Java and have recently been stumped by angle brackets(). What exactly do they mean?
6 Answers
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Disposing WPF User Controls
...sed by a third party. My control has a private member which is disposable, and I would like to ensure that its dispose method will always get called once the containing window/application is closed. However, UserControl is not disposable. I tried implementing the IDisposable interface and subscribin...
Automatically add newline at end of curl response body
...ly annoying condition where the shell prompt is in the middle of the line, and escaping is messed up enough that when I put the last curl command on the screen, deleting characters from that curl command deletes the wrong characters.
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Why should I use var instead of a type? [duplicate]
After I have installed ReSharper it demands(by warnings) that I use var whenever possible, for example
4 Answers
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Directory-tree listing in Python
How do I get a list of all files (and directories) in a given directory in Python?
20 Answers
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leading zeros in rails
I have fields hr and min , both integers in my application. For hr field, if the user enters "1" I would like Rails to automatically pad it to "01" before saving it to the database. Also for the min field if the user enter "0" it should put in as "00".
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How to get the seconds since epoch from the time + date output of gmtime()?
How do you do reverse gmtime() , where you put the time + date and get the number of seconds?
6 Answers
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What is a word boundary in regex?
...g Java regexes in Java 1.6 (to parse numeric output, among other purposes) and cannot find a precise definition of \b ("word boundary"). I had assumed that -12 would be an "integer word" (matched by \b\-?\d+\b ) but it appears that this does not work. I'd be grateful to know of ways of matchi...