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Inject errors into already validated form?

...external) process for further processing. This external process can potentially find further errors in the values. 4 Answer...
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How to get the list of all printers in computer

I need to get the list of all printers that connect to computer? 6 Answers 6 ...
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Cutting the videos based on start and end time using ffmpeg

... Because non-keyframes encode differences from other frames, they require all of the data starting with the previous keyframe. With the mp4 container it is possible to cut at a non-keyframe without re-encoding using an edit list. In other words, if the closest keyframe before 3s is at 0s then it ...
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What really happens in a try { return x; } finally { x = null; } statement?

...L level you can't return from inside an exception-handled block. It essentially stores it in a variable and returns afterwards i.e. similar to: int tmp; try { tmp = ... } finally { ... } return tmp; for example (using reflector): static int Test() { try { return SomeNumber(); ...
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What are naming conventions for MongoDB?

... Keep'em short: Optimizing Storage of Small Objects, SERVER-863. Silly but true. I guess pretty much the same rules that apply to relation databases should apply here. And after so many decades there is still no agreement whether RDBMS tables should be named singul...
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What does the variable $this mean in PHP?

I see the variable $this in PHP all the time and I have no idea what it's used for. I've never personally used it. 10 An...
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The difference between the Runnable and Callable interfaces in Java

What is the difference between using the Runnable and Callable interfaces when designing a concurrent thread in Java, why would you choose one over the other? ...
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Where to get “UTF-8” string literal in Java?

... You don't really need to call name() at all. You can directly pass the Charset object into the InputStreamReader constructor. – Natix Nov 19 '14 at 10:33 ...
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Oracle “(+)” Operator

..."adding NULL values if no match found". For example, "a.id=b.id(+)" means allow b.id to be NULL if there is no match with a.id. – beach Oct 26 '10 at 5:00 ...
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CROSS JOIN vs INNER JOIN in SQL

...---------------------------------x 2. CROSS JOIN Cross join selects the all the rows from the first table and all the rows from second table and shows as Cartesian product ie, with all possibilities Consider we need to find all the teachers in the school and students irrespective of class teacher...