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Useful example of a shutdown hook in Java?
...ying to make sure my Java application takes reasonable steps to be robust, and part of that involves shutting down gracefully. I am reading about shutdown hooks and I don't actually get how to make use of them in practice.
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How do ports work with IPv6?
...t changed between the two versions is the addressing scheme, DHCP [DHCPv6] and ICMP [ICMPv6]. So basically, anything TCP/UDP related, including the port range (0-65535) remains unchanged.
Edit: Port 0 is a reserved port in TCP but it does exist. See RFC793
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What is the Comonad typeclass in Haskell?
...re's a good chance that we're dealing with a comonad".
Sequences, streams, and segments
Comonads in everyday life
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How can I check if a method is static using reflection?
...ods of a class, how can I do this?
Or, how to differentiate between static and non-static methods.
3 Answers
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Rails 4: before_filter vs. before_action
...ore_filter.
However all before_filters syntax are deprecated in Rails 5.0 and will be removed in Rails 5.1
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Google access token expiration time
...ve a look at: https://developers.google.com/accounts/docs/OAuth2UserAgent#handlingtheresponse
It says:
Other parameters included in the response include expires_in and
token_type. These parameters describe the lifetime of the token in
seconds...
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warning about too many open figures
... interface (matplotlib.pyplot.figure) are retained until explicitly closed and may consume too much memory.
6 Answers
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Can you define aliases for imported modules in Python?
...r I found for that stackoverflow.com/a/40823467
– fr_andres
Aug 13 '18 at 16:37
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Should image size be defined in the img tag height/width attributes or in CSS? [duplicate]
...better coding practice to define an images size in the img tag's width and height attributes?
7 Answers
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Show filename and line number in grep output
... to search my rails directory using grep. I am looking for a specific word and I want to grep to print out the file name and line number.
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