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Why java.lang.Object is not abstract? [duplicate]

..., finalize(), etc. are sufficiently complicated and/or are native, so it's best they're already implemented, and would not benefit from being abstracted. So I'd guess the answer would be no, none of the methods of Object would benefit from being abstract. Would it be a benefit to mark the Object c...
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When to use SELECT … FOR UPDATE?

...I appreciate all the references you provided. I will accept an answer that best combines the two (specific answers on top, supporting references below). – Gili May 7 '13 at 18:30 ...
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How do you effectively model inheritance in a database?

What are the best practices for modeling inheritance in databases? 9 Answers 9 ...
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General suggestions for debugging in R

... use the debug() function and step through the script line by line. The best new trick in R 2.10 (when working with script files) is to use the findLineNum() and setBreakpoint() functions. As a final comment: depending upon the error, it is also very helpful to set try() or tryCatch() statemen...
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How can I troubleshoot my Perl CGI script?

...is providing it list context, so <fh> returns an array, one line per item. Then join puts it back together (joining it with ''). Finally, eval. – derobert Sep 9 '10 at 19:04 ...
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How can I let a table's body scroll but keep its head fixed in place?

... I had to find the same answer. The best example I found is http://www.cssplay.co.uk/menu/tablescroll.html - I found example #2 worked well for me. You will have to set the height of the inner table with Java Script, the rest is CSS. ...
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What does jQuery.fn mean?

... a class like this: $('.blue').blueBorder().blueText(); (I know this is best done with css such as applying different class names, but please keep in mind this is just a demo to show the concept) This answer has a good example of a full fledged extension. ...
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How do I write a custom init for a UIView subclass in Swift?

... Then by all means make them var. But the default best practice in Swift is to declare variables let unless there is a reason to declare them var. There was no such reason to do so in my code example above, hence let. – Wolf McNally Jun...
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Why is extending native objects a bad practice?

...cepts any input and stringifies it. Most browsers define JSON.stringify(), best would be to check if that exists, and if not define it yourself. – Abhi Beckert Dec 25 '12 at 22:57 ...
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Sublime Text 2: Trim trailing white space on demand

... Yeah, I like this answer the best ... upgrade safe + just works - thanks – Rob Feb 4 '13 at 22:44 1 ...