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Java Runtime.getRuntime(): getting output from executing a command line program
...= s.next();
}
else {
val = "";
}
return val;
}
I know this question is old but I am posting this answer because I think this may be quicker.
Edit (For Java 7 and above)
Need to close Streams and Scanners. Using AutoCloseable for neat code:
public static String execCmd(String...
Warning :-Presenting view controllers on detached view controllers is discouraged
...ically), i didn't add [self addChildViewController:sampleViewController];, now i added this, thank you
– anjnkmr
Dec 1 '17 at 6:36
...
Merge/flatten an array of arrays
... native method called flat to do this exactly.
(As of late 2019, flat is now published in the ECMA 2019 standard, and core-js@3 (babel's library) includes it in their polyfill library)
const arr1 = [1, 2, [3, 4]];
arr1.flat();
// [1, 2, 3, 4]
const arr2 = [1, 2, [3, 4, [5, 6]]];
arr2.flat();
/...
Unsafe JavaScript attempt to access frame with URL
...ge/, instead of doing
parent.location.hash = "#foobar";
you do need to know the parents location and do
parent.location = "http://example.com/page/#foobar";
Since the resource is not navigated this will work as expected, only changing the hash part of the url.
If you are using this for cross-...
How to check file input size with jQuery?
...added here more details and links about other file information you should know: http://felipe.sabino.me/javascript/2012/01/30/javascipt-checking-the-file-size/
Old browsers support
Be aware that old browsers will return a null value for the previous this.files call, so accessing this.files[0] wi...
How to get the cuda version?
...--version gives me "Cuda compilation tools, release 7.5, V7.5.17" do you know the reason for the missmatch?
– martinako
Mar 21 '18 at 15:07
1
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How to make a background 20% transparent on Android
...w this procedure:
Given a transparency percentage, for example 20%, you know the opaque percentage value is 80% (this is 100-20=80)
The range for the alpha channel is 8 bits (2^8=256), meaning the range goes from 0 to 255.
Project the opaque percentage into the alpha range, that is, multiply the r...
Remove the last character in a string in T-SQL?
... substring syntax is as follows: SUBSTRING ( expression ,start , length ). Now, both queries return the same because the numbering is 1 based, meaning that the first character in the expression is 1. If start is less than 1, the returned expression will begin at the first character that is specified...
How can I change the thickness of my tag
...ant to change the thickness of my horizontal rule ( <hr> )in CSS. I know it can be done in HTML like so -
9 Answers
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Favorite (Clever) Defensive Programming Best Practices [closed]
...lever defensive techniques other than those that 70%+ of us here already know about. So now it is time to dig deep into your bag of tricks.
...