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ProcessBuilder: Forwarding stdout and stderr of started processes without blocking the main thread

... For Java 6 and earlier, it seems this is the only solution. For java 7 and up, see the other answer about ProcessBuilder.inheritIO() – LordOfThePigs Jan 5 '13 at 5:39 ...
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Provide an image for WhatsApp link sharing

... 2020 standards It takes a few steps to get the perfect preview for WhatsApp, Twitter, Facebook and bookmark icons for pc's and mobile devices. If you like reading go to ogp.me - but make sure to read steps 1 - 6 in this answer to ge...
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mysql Foreign key constraint is incorrectly formed error

I have two tables, table1 is the parent table with a column ID and table2 with a column IDFromTable1 (not the actual name) when I put a FK on IDFromTable1 to ID in table1 I get the error Foreign key constraint is incorrectly formed error . I would like to delete table 2 record if tab...
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Sorted collection in Java

...n/should be used for maintaining a sorted list in Java. I have tried Map and Set , but they weren't what I was looking for. ...
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What is the use of the ArraySegment class?

... ArraySegment<T> has become a lot more useful in .NET 4.5+ and .NET Core as it now implements: IList<T> ICollection<T> IEnumerable<T> IEnumerable IReadOnlyList<T> IReadOnlyCollection<T> as opposed to the .NET 4 version which implemented no interfaces...
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Override Java System.currentTimeMillis for testing time sensitive code

...commend that instead of messing with the system clock, you bite the bullet and refactor that legacy code to use a replaceable clock. Ideally that should be done with dependency injection, but even if you used a replaceable singleton you would gain testability. This could almost be automated with se...
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append multiple values for one key in a dictionary [duplicate]

I am new to python and I have a list of years and values for each year. What I want to do is check if the year already exists in a dictionary and if it does, append the value to that list of values for the specific key. ...
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Is it safe to get values from a java.util.HashMap from multiple threads (no modification)?

There is a case where a map will be constructed, and once it is initialized, it will never be modified again. It will however, be accessed (via get(key) only) from multiple threads. Is it safe to use a java.util.HashMap in this way? ...
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Best practice for Python assert

...l this an example of using them. This is more an example of properties in and of themselves: docs.python.org/library/functions.html#property – Jason Baker Jun 3 '09 at 13:43 3 ...
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Can I Replace Apache with Node.js?

... have a website running on CentOS using the usual suspects (Apache, MySQL, and PHP). Since the time this website was originally launched, it has evolved quite a bit and now I'd like to do fancier things with it—namely real-time notifications. From what I've read, Apache handles this poorly. I'm wo...