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How to generate serial version UID in Intellij
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Without any plugins:
You just need to enable highlight: (Idea v.2016, 2017 and 2018, previous versions may have same or similar settings)
File -> Settings -> Editor -> Inspections -> Java -> Serialization issues -> Se...
How to atomically delete keys matching a pattern using Redis
In my Redis DB I have a number of prefix:<numeric_id> hashes.
23 Answers
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Accessing inactive union member and undefined behavior?
I was under the impression that accessing a union member other than the last one set is UB, but I can't seem to find a solid reference (other than answers claiming it's UB but without any support from the standard).
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Is it ok to use dashes in Python files when trying to import them?
...es Modules should have short, all-lowercase names. Underscores can be used in the module name if it improves readability. Python packages should also have short, all-lowercase names, although the use of underscores is discouraged.
Since module names are mapped to file names, and some file systems ar...
How to change the Push and Pop animations in a navigation based app
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How to change the Push and Pop animations in a navigation based app...
For 2019, the "final answer!"
Preamble:
Say you are new to iOS development. Confusingly, Apple provide two transitions which can be used easily. These are: "crossfade" and "flip".
But of course, ...
How to generate random number in Bash?
How to generate a random number within a range in Bash?
17 Answers
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Are PHP functions case sensitive?
I was digging through some code, and I found some calls to mySQL_fetch_array . Is PHP case sensitive about function names? I recall reading this somewhere but can't seem to find any reference to it.
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How to define a two-dimensional array?
I want to define a two-dimensional array without an initialized length like this:
27 Answers
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Python str vs unicode types
Working with Python 2.7, I'm wondering what real advantage there is in using the type unicode instead of str , as both of them seem to be able to hold Unicode strings. Is there any special reason apart from being able to set Unicode codes in unicode strings using the escape char \ ?:
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An explicit value for the identity column in table can only be specified when a column list is used
I'm trying to do this query
16 Answers
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