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Getting the count of unique values in a column in bash
...currence of the different values in a column for all the files in a folder and sort them in decreasing order of count (highest count first). How would I accomplish this in a Linux command line environment?
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How to get the first element of an array?
...x of 0. You know what they say about assumption...
– Andy
Aug 9 '15 at 16:19
16
@Andy There were...
Android Studio Google JAR file causing GC overhead limit exceeded error
I am using Android Studio on OS X. I am getting this error message:
12 Answers
12
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小米360同日竞技：智能手机血战再起 - 资讯 - 清泛网 - 专注C/C++及内核技术
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小米推定位产品
美国科技媒体人沃尔特·莫斯伯格(Walt Mossberg)最近在评测文章中说：“小米Note满足了他对苹果手机的所有想象。”
小米科技推出小米Note顶配版，目的是重新定义高端市场旗舰机标准。莫斯伯格评价说：“即使...
How to loop through an array containing objects and access their properties
I want to cycle through the objects contained in an array and change the properties of each one. If I do this:
15 Answers
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Facebook development in localhost
...o use FB authentication for a localhost website.
I find it more scalable and convenient to set up a second Facebook app. If I'm building MyApp, then I'll make a second one called MyApp-dev.
Create a new app at https://developers.facebook.com/apps
(New 2/15/2012) Click the Website checkbox under...
How can I get the line number which threw exception?
...ways returns 0 for me. Is this caused by not having a pdb file? What is it and how to get it? (I am using ASP.net)
– Brabbeldas
Sep 27 '13 at 9:58
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:after vs. ::after
Is there any functional difference between the CSS 2.1 :after and the CSS 3 ::after pseudo-selectors (other than ::after not being supported in older browsers)? Is there any practical reason to use the newer specification?
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Targeting both 32bit and 64bit with Visual Studio in same solution/project
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Yes, you can target both x86 and x64 with the same code base in the same project. In general, things will Just Work if you create the right solution configurations in VS.NET (although P/Invoke to entirely unmanaged DLLs will most likely require some cond...
How can I hash a password in Java?
... good algorithm to use for password hashing.
byte[] salt = new byte[16];
random.nextBytes(salt);
KeySpec spec = new PBEKeySpec("password".toCharArray(), salt, 65536, 128);
SecretKeyFactory f = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
byte[] hash = f.generateSecret(spec).getEncoded();
Bas...