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Why does the default parameterless constructor go away when you create one with parameters
...lt parameterless one goes away. I have always just accepted this fact, but now I've started wondering why.
11 Answers
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Use 'import module' or 'from module import'?
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No, in the last example, the name 'foo' is unknown
– Ghislain Leveque
Jan 11 '16 at 13:59
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How do I debug an MPI program?
... here. DDT is nice. Try it out too. TotalView also integrates with STAT now, so if your site has a TotalView installation you could try that as well. LLNL keeps TotalView and DDT around, and it's nice that TotalView finally has some stiff competition.
– Todd Gamblin
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What is a NullPointerException, and how do I fix it?
...n the most trivial cases, the compiler will catch the problem and let you know that "num may not have been initialized," but sometimes you may write code that does not directly create the object.
For instance, you may have a method as follows:
public void doSomething(SomeObject obj) {
//do someth...
When is memoization automatic in GHC Haskell?
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er, that should be map (show . f . read), of course. And now that I've downloaded GHC 6.12.3, I see the same results as in GHC 6.12.1. And yes, you are right about the original m1 and m2: versions of GHC that perform this kind of lifting with optimizations enabled will transform m...
Can't connect to local MySQL server through socket homebrew
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sudo ln -s /tmp/mysql.sock /var/mysql/mysql.sock
This solved it for me. Now my phpMyAdmin works happily with localhost and 127.0.0.1.
Credit goes to Henry
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How can I make a UITextField move up when the keyboard is present - on starting to edit?
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You will only need a ScrollView if the contents you have now do not fit in the iPhone screen. (If you are adding the ScrollView as the superview of the components just to make the TextField scroll up when keyboard comes up, then it's not needed.)
The standard way to prevent the Tex...
How can I time a code segment for testing performance with Pythons timeit?
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update: time.clock() is now deprecated. You should now use time.time(). Actually, since version 3.3, the best option would be time.perf_counter()
– Madlozoz
Jul 10 '16 at 9:57
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How to know if other threads have finished?
... The question really is: how do you get OFF of the secondary thread now. I know that it's finished, but how do I access the Main thread now?
– Patrick
Aug 28 '13 at 13:42
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Algorithm for classifying words for hangman difficulty levels as “Easy”,“Medium”, or “Hard”
...onary, you'd start with a list of words that you think they are likely to know. For example, you might have a look at Wiktionary's lists of the most frequently used words in various English corpora.
For example, among the 1,700 six-letter words in the 10,000 most common words in Project Gutenberg a...