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How do I join two lists in Java?

... It is ugly but at least its fluent and can be used without multi line lambdas. I really wish there was a fluent addAll that returned the concatinated list. – Usman Ismail Jan 11 '18 at 15:06 ...
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How to determine an object's class?

If class B and class C extend class A and I have an object of type B or C , how can I determine of which type it is an instance? ...
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How to make an unaware datetime timezone aware in python

...ry to use localize since there is no daylight savings time calculation to handle: now_aware = unaware.replace(tzinfo=pytz.UTC) works. (.replace returns a new datetime; it does not modify unaware.) share | ...
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How do you reset the stored credentials in 'git credential-osxkeychain'?

I've followed the GitHub instructions for setting up my account, and I'm able to clone, but I'm unable to push remotely. 7 ...
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Flatten nested dictionaries, compressing keys

...iterating the dict by key/value, creating new keys for your new dictionary and creating the dictionary at final step. import collections def flatten(d, parent_key='', sep='_'): items = [] for k, v in d.items(): new_key = parent_key + sep + k if parent_key else k if isinstan...
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How to validate an e-mail address in swift?

... edited Dec 30 '19 at 7:17 Zandor Smith 34833 silver badges1717 bronze badges answered Aug 24 '14 at 11:20 ...
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What's the scope of the “using” declaration in C++?

I'm using the 'using' declaration in C++ to add std::string and std::vector to the local namespace (to save typing unnecessary 'std::'s). ...
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OS X Bash, 'watch' command

I'm looking for the best way to duplicate the Linux 'watch' command on Mac OS X. I'd like to run a command every few seconds to pattern match on the contents of an output file using 'tail' and 'sed'. ...
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SQL to LINQ Tool [closed]

...link. [Linqer] is a SQL to LINQ converter tool. It helps you to learn LINQ and convert your existing SQL statements. Not every SQL statement can be converted to LINQ, but Linqer covers many different types of SQL expressions. Linqer supports both .NET languages - C# and Visual Basic. ...
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What is the best way to measure execution time of a function? [duplicate]

Obviously I can do and DateTime.Now.After - DateTime.Now.Before but there must be something more sophisticated. 4 Answ...