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Try-finally block prevents StackOverflowError

...ly block. The problem is that it will take a really, really long time. The order of time is O(2^N) where N is the maximum stack depth. Imagine the maximum depth is 5 foo() calls foo() calls foo() calls foo() calls foo() which fails to call foo() final...
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What is object serialization?

... // machine, a database, an in memory array, etc. new FileOutputStream(new File("o.ser"))); // do the magic oos.writeObject( instance ); // close the writing. oos.close(); } } When we run this progr...
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How to count certain elements in array?

...Say hello to your friends: map and filter and reduce and forEach and every etc. (I only occasionally write for-loops in javascript, because of block-level scoping is missing, so you have to use a function as the body of the loop anyway if you need to capture or clone your iteration index or value. ...
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Is there type Long in SQLite?

...he difference between SQLite integer data types like int, integer, bigint, etc.? and Version of SQLite used in Android? share | improve this answer | follow ...
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How can I use threading in Python?

...lf) is just a fancy way to look up the next class in the method resolution order (MRO), which is threading.Thread (and then subsequently calling init on that in both cases). You are right, though, in that using super() is better style for current Python. Super was relatively recent at the time that ...
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How to read environment variables in Scala

...ct to compile Scala to other platforms than JVM (.NET, javascript, native, etc.) Reducing the dependencies on Java API, will make your code more portable. share | improve this answer | ...
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How many threads can a Java VM support?

...do other normal operations like browsing, opening, closing other programs, etc. With 25,000 threads system slows down but it remains responsive. With 50,000 threads system stopped responding instantly and I had to restart my system manually. My system details are as follows : Processor : Intel c...
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HTML / CSS How to add image icon to input type=“button”?

... kicker for things like an edit post form that has "Preview" and "Submit", etc. – Delan Azabani May 27 '10 at 10:21 3 ...
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CSS Selector “(A or B) and C”?

... As of five o'clock this morning, yes! I have js that spits out first order logic, with selectors at the leaves, giving results such as :not(:not([data-status="ACT"]):not([data-status="ISS"]):not([data-status="COR"]))[data-month="08"]. The code is not clean enough for public perusal, yet, othe...
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psql: could not connect to server: No such file or directory (Mac OS X)

...with either one of these commands sudo service postgresql restart sudo /etc/init.d/postgresql restart share | improve this answer | follow | ...