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Can you use if/else conditions in CSS?
...d them for every page it's hard to rely on "dynamic" stylesheets generated by PHP/[programming-language-of-choice]. It's not the way it's supposed to work. If you need changing CSS, you can embed it in the page of course, but that starts to go against content/presentation separation.
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How to cast an Object to an int
...t this is not a real pointer value. Objects' memory address can be changed by the JVM while their identity hashes are keeping. Also, two living objects can have the same identity hash.
You can also use object.hashCode(), but it can be type specific.
Scenario 5: unique index
In same cases you need...
Can I browse other people's (Apple) bug reports? [closed]
...are their radar numbers on here then (if I can't look up their bug reports by ID)? I guess perchance that someone from Apple who organizes bug reports is reading Stack Overflow?
– ma11hew28
Jun 26 '14 at 15:20
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Check if a string is null or empty in XSLT
...and highly voted, is also very misleading. It really depends what you mean by "null or empty". If you want a test that succeeds if categoryName is either absent, or present with a zero-length value, you should use test="not(categoryName = '')". The supplied answer will return false if the categoryNa...
All possible array initialization syntaxes
...ne explain why the initialisation expression in the 3rd line can't be used by itself (e.g. passed into a method) or be assigned to a var variable?
– Ruben9922
Sep 11 '19 at 16:49
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Do we need semicolon at the end? [duplicate]
...disagree about closing the html tags for two reasons: 1. They are required by the XHTML standard. (Semicolons is optional in the ECMA standard) 2. They give structure to your code, they says something about where the tags end. (In JavaScript semicolon says the line end, and they are immediately flo...
How do I convert a String to an int in Java?
...eOf has two overloads - for int and String. valueOf(String) is implemented by first parsing the String to an int using parseInt(String) and then wrapping that int in an Integer by using valueOf(int). No recursion here because valueOf(String) and valueOf(int) are two completely different functions, e...
What does the “assert” keyword do? [duplicate]
...lient's responsibility to ensure the arguments are within range. As argued by Bertrand Meyer (design by contract) this assumption avoids duplicate checking. Using IllegalArgumentException is the good style in a public API. See also this answer to a related stackoverflow question.
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Extract a part of the filepath (a directory) in Python
... I like the way this semi-ugly way works. I change the "\\" by a simple os.sep and it works perfectly to retrieve just a fraction of a path.
– TazgerO
Oct 8 '12 at 12:43
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Does adding a duplicate value to a HashSet/HashMap replace the previous value
...mystarrocks: The key is the element of the Set, and that is never replaced by the put() operation.
– Keppil
Jun 10 '14 at 15:05
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