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Trust Anchor not found for Android SSL Connection

... The solution of @Chrispix is dangerous! Trusting all certificates allows anybody to do a man in the middle attack! Just send ANY certificate to the client and it will accept it! Add your certificate(s) to a custom trust manager like described in this post: Trusting all cer...
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What's faster, SELECT DISTINCT or GROUP BY in MySQL?

... They are essentially equivalent to each other (in fact this is how some databases implement DISTINCT under the hood). If one of them is faster, it's going to be DISTINCT. This is because, although the two are the same, a query optimizer wo...
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Add comma to numbers every three digits

... @eladsilver w3schools.com/jsref/jsref_tolocalestring.asp in all browsers – ricks Oct 12 '18 at 20:49 ...
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What is sys.maxint in Python 3?

...integer, and I've read to use "sys.maxint" . However, in Python 3 when I call it I get: 6 Answers ...
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How do I enable the column selection mode in Eclipse?

News wrote that Eclipse 3.5 finally supports column selection. Unfortunately I don't know HOW to enable it. I tried pressing the ALT-key like I am used to in Visual Studio and all other Microsoft products but that had no effect. ...
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Which terminal command to get just IP address and nothing else?

... This will give you all IPv4 interfaces, including the loopback 127.0.0.1: ip -4 addr | grep -oP '(?<=inet\s)\d+(\.\d+){3}' This will only show eth0: ip -4 addr show eth0 | grep -oP '(?<=inet\s)\d+(\.\d+){3}' And this way you can get...
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How to list the size of each file and directory and sort by descending size in Bash?

... @ErikTrautman to list the files also you need to add -a and use --all instead of --max-depth=1 like so du -a -h --all | sort -h – Franco Jun 14 '14 at 1:40 ...
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Explain the use of a bit vector for determining if all characters are unique

...ge for bits. Every bit in integer value can be treated as a flag, so eventually int is an array of bits (flag). Each bit in your code states whether the character with bit's index was found in string or not. You could use bit vector for the same reason instead of int. There are two differences betwe...
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'Missing recommended icon file - The bundle does not contain an app icon for iPhone / iPod Touch of

... just need to drag and drop your 1024 x 1024 icon and the site will create all the icon sizes and send it to your email. Then follow the following method to set icons for iOS app. After Apple launched iOS 8, iPhone 6 and 6 Plus, the app icon sizes and launch image sizes changed. Please visit my pos...
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Can someone give an example of cosine similarity, in a very simple, graphical way?

... I am really glad this was useful to you, Alex. Sorry for the delay in responding. I haven't visited StackOverflow in a while. Actually this is an example of an "inner product space". There's a basic discussion on wikipedia. ...