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Running a cron job on Linux every six hours
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Yes, though the first field is the minute, which you've set to 15, so that'll mean 15:15,23:15,05:15 and 11:15. (which isn't every 6th hour btw, you might have meant 0 15,21,3,9 * * *)
– nos
Jul 19 '12 at 14:31
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Why should weights of Neural Networks be initialized to random numbers? [closed]
... any fixed initialization biases your solution towards some one particular set of weights. If you do it randomly (and possibly many times) then there is much less probable that you will get stuck in some weird part of the error surface.
The same argument applies to other algorithms, which are not a...
How to print a double with two decimals in Android? [duplicate]
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yourTextView.setText(String.format("Value of a: %.2f", a));
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How to hide only the Close (x) button?
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We can hide close button on form by setting this.ControlBox=false;
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Can you find all classes in a package using reflection?
...ckage:
Reflections reflections = new Reflections("my.project.prefix");
Set<Class<? extends Object>> allClasses =
reflections.getSubTypesOf(Object.class);
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Git Cherry-pick vs Merge Workflow
...long time to ferret out.
cherry-pick is useful for sampling out a small subset of changes from a topic branch you've basically decided to discard, but realized there are a couple of useful pieces on.
As for preferring merging many changes over one: it's just a lot simpler. It can get very tedious...
Delete first character of a string in Javascript
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Very readable code is to use .substring() with a start set to index of the second character (1) (first character has index 0). Second parameter of the .substring() method is actually optional, so you don't even need to call .length()...
TL;DR : Remove first character from the st...
How to check for a valid URL in Java?
...d("http://my favorite site!");
There are several properties that you can set to control how this class behaves, by default http, https, and ftp are accepted.
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How can bcrypt have built-in salts?
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@TJChambers That's right; if you can set the password on the account, you will be able to authenticate. Password hashing isn't intended to prevent that attack. It's meant to prevent an attacker with read-only access to the password table from authenticating. For...
How to run Gulp tasks sequentially one after the other
... full instructions on the package README — it also supports running some sets of tasks simultaneously.
Please note, this will be (effectively) fixed in the next major release of gulp, as they are completely eliminating the automatic dependency ordering, and providing tools similar to run-sequence...