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Java inner class and static nested class
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From the Java Tutorial:
Nested classes are divided into two categories: static and non-static. Nested classes that are declared static are simply called static nested classes. Non-static nested classes are called inner classes.
Static...
Is it .yaml or .yml?
According to yaml.org , the official file extension is .yaml .
4 Answers
4
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Why use Abstract Base Classes in Python?
Because I am used to the old ways of duck typing in Python, I fail to understand the need for ABC (abstract base classes). The help is good on how to use them.
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Convert Unicode to ASCII without errors in Python
My code just scrapes a web page, then converts it to Unicode.
11 Answers
11
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What is the python “with” statement designed for?
I came across the Python with statement for the first time today. I've been using Python lightly for several months and didn't even know of its existence! Given its somewhat obscure status, I thought it would be worth asking:
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How to use MDC with thread pools?
In our software we extensively use MDC to track things like session IDs and user names for web requests. This works fine while running in the original thread. However, there's a lot of things that need to be processed in the background. For that we use the java.concurrent.ThreadPoolExecutor and j...
Merging between forks in GitHub
I forked a GitHub repository. Then I pushed some changes to my fork. Then the original repository merged my changes and some others. Now, I want to merge those changes I'm missing. I tried a simple pull followed by push, but this yield my commits in duplicate. What's the best way to do it?
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How to change maven logging level to display only warning and errors?
I want to prevent maven from displaying INFO messages, I want to see only WARNINGS and ERRORS (if any).
10 Answers
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Liquibase lock - reasons?
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Sometimes if the update application is abruptly stopped, then the lock remains stuck.
Then running
UPDATE DATABASECHANGELOGLOCK SET LOCKED=0, LOCKGRANTED=null, LOCKEDBY=null where ID=1;
against the database helps.
Or you can simply drop the DATABASECHANGELOGLOCK table,...
LINQ: When to use SingleOrDefault vs. FirstOrDefault() with filtering criteria
Consider the IEnumerable extension methods SingleOrDefault() and FirstOrDefault()
15 Answers
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