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How can I initialize an ArrayList with all zeroes in Java?
... That is much better than my solution (even my updated one that actually works hehehe). I would recommend not making a new ArrayList out of it though, and instead simply program to List. That's a decision left to the OP, of course.
– corsiKa
Apr 8 '11 at...
How to pipe list of files returned by find command to cat to view all the files
...ipe it to another utility like cat (so that cat displays the contents of all those files) and basically need to grep something from these files.
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git ignore all files of a certain type, except those in a specific subfolder
... my case, I realized that I want to ignore nothing in my spec directory at all. So I am able to get away with a very simple !spec. Works like a charm.
– Alex Wayne
Jan 6 '11 at 23:31
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Update all values of a column to lowercase
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@BjörnC - upper/lower only changes letters; all other characters are unchanged.
– ToolmakerSteve
Apr 9 '19 at 17:54
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Xcode Project vs. Xcode Workspace - Differences
... linker flags, and they define which files (source code and resources) actually belong to a product. When you build/run, you always select one specific target.
It is likely that you have a few targets that share code and resources. These different targets can be slightly different versions of an ap...
IE9 border-radius and background gradient bleeding
...rted it into a data URI using an online tool. The resulting data URI is smaller than the CSS code for all that SVG mess, much less the SVG itself! (You could apply this conditionally to IE9 only using conditional styles, browser-specific css classes, etc.) Of course, generating a PNG works great ...
Animation CSS3: display + opacity
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to support all browsers.. ?
– david_adler
Oct 25 '13 at 16:41
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How to get the absolute coordinates of a view
...solute screen pixel coordinates of the top left corner of a view. However, all methods I can find such as getLeft() and getRight() don't work as they all seem to be relative to the parent of the view, thus giving me 0 . What is the proper way to do this?
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How do you know what to test when writing unit tests? [closed]
Using C#, I need a class called User that has a username, password, active flag, first name, last name, full name, etc.
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How do I create a list of random numbers without duplicates?
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With reference to your specific code example, you probably want to read all the lines from the file once and then select random lines from the saved list in memory. For example:
all_lines = f1.readlines()
for i in range(50):
lines = random.sample(all_lines, 40)
This way, you only need to a...