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Python list iterator behavior and next(iterator)

...i), 1 the return value from next(), echoed by the interactive interpreter, etc. There are just 5 iterations, each iteration resulting in 2 lines being written to the terminal. If you assign the output of next() things work as expected: >>> a = iter(list(range(10))) >>> for i in a...
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find -exec cmd {} + vs | xargs

...ure that: Your script will not assume that no file will have space, tab, etc in file name; the first version is safe, the second is not. Your script will not treat a file starting with "-" as an option. So your code should look like this: find . -exec cmd -option1 -option2 -- {} + or find . ...
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Error inflating class fragment

... I had the same problem. The solution for me was the order of super.onCreate and setContentView within the FragmentActivity Following order works fine: super.onCreate(savedInstanceState); setContentView(R.layout.fc_activity_list_profiles); ...
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Difference between web reference and service reference?

... yes, you can add a service reference to a java etc web service, if it has a wsdl. The service reference will treat it like a "classic" web reference in this case. – Brady Moritz Oct 9 '10 at 19:45 ...
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Alternatives to dispatch_get_current_queue() for completion blocks in iOS 6?

...ead. Most of the time you're waiting for a long running process to finish fetching/manipulating data and then you can process it in the background right in your completion block and then only stick UI calls into a dispatch block on the main queue. Plus it's always good to follow what Apple sets in t...
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Post-increment and pre-increment within a 'for' loop produce same output [duplicate]

... the old value of i after incrementing, I think ++i may be shorter (on the order of 1-2 instructions). – danben Feb 5 '11 at 0:18 26 ...
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Why is “throws Exception” necessary when calling a function?

...ile specified by user is not readable, or no network connection available, etc., In all these cases, our program doesn't need to exit, instead it can take actions like alerting the user, or go into a fallback mechanism(like offline working when network not available), etc. Unchecked Exceptions: The...
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What difference between Jersey vs jax-rs

...ld be input type, input format, output type, its format, its configuration etc.Its Just a type declaration and its implementation are these libraries, Jersey, wink RestEasy etc. Further, Java also have specification like JPA(Java Persistence API) and like mentioned above there is Hibernate which is...
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How does lucene index documents?

... Yes, you are correct. The only thing to mention is the final order is defined using sorting rules (relevance index in trivial case), thus the order in which segments are searched isn't relevant. – Denis Bazhenov Jul 19 '16 at 5:25 ...
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How to upgrade R in ubuntu? [closed]

...ollow the instructions from here Open the sources.list file: sudo nano /etc/apt/sources.list Add a line with the source from where the packages will be retrieved. For example: deb https://cloud.r-project.org/bin/linux/ubuntu/ version/ Replace https://cloud.r-project.org with whatever mir...