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How to update gradle in android studio?
I installed Android Studio 0.1.9. Today I got and update to version 0.2 and of course I updated. After the installation I restarted Android Studio but now I get this message:
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How to generate a random string in Ruby
I'm currently generating an 8-character pseudo-random uppercase string for "A" .. "Z":
50 Answers
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sed in-place flag that works both on Mac (BSD) and Linux
...on of sed todo in-place editing without backups that works both on Linux and Mac? While the BSD sed shipped with OS X seems to need sed -i '' … , the GNU sed Linux distributions usually come with interprets the quotes as empty input file name (instead of the backup extension), and needs se...
如何选择机器学习算法 - 大数据 & AI - 清泛网移动版 - 专注C/C++及内核技术
...s (making sure to try different parameters within each algorithm as well), and select the best one by cross-validation. But if you’re simply looking for a “good enough” algorithm for your problem, or a place to start, here are some general guidelines I’ve found to work well over the ...
Is there any WinSCP equivalent for linux? [closed]
...'re using Gnome, you can go to: Places -> Connect to Server in nautilus
and choose SSH. If you have a SSH agent running and configured, no password will be asked!
(This is the same as sftp://root@servername/directory in Nautilus)
In Konqueror, you can simply type: fish://servername.
per Mike R:...
\r\n, \r and \n what is the difference between them? [duplicate]
I need to ask about the difference in a string between \r\n , \r and \n . How is a string affected by each?
4 Answers
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Prevent form submission on Enter key press
I have a form with two text boxes, one select drop down and one radio button . When the enter key is pressed, I want to call my JavaScript function, but when I press it, the form is submitted.
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How to remove the arrow from a select element in Firefox
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Okay, I know this question is old, but 2 years down the track and mozilla have done nothing.
I've come up with a simple workaround.
This essentially strips all formatting of the select box in firefox and wraps a span element around the select box with your custom style, but should o...
Returning a C string from a function
...Other languages (Java, Pascal, etc.) use different methodologies to understand "my string".
If you ever use the Windows API (which is in C++), you'll see quite regularly function parameters like: "LPCSTR lpszName". The 'sz' part represents this notion of 'string-zero': an array of bytes with a null...
What's wrong with overridable method calls in constructors?
...When the @Override is invoked, the state of the object may be inconsistent and/or incomplete.
A quote from Effective Java 2nd Edition, Item 17: Design and document for inheritance, or else prohibit it:
There are a few more restrictions that a class must obey to allow inheritance. Constructors m...