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Why java.util.Optional is not Serializable, how to serialize the object with such fields
...hat the caller immediately check the Optional and extract the actual value if it's present. If the value is absent, the caller can substitute a default value, throw an exception, or apply some other policy. This is typically done by chaining fluent method calls off the end of a stream pipeline (or o...
Converting from longitude\latitude to Cartesian coordinates
...a few feet and even then there is theoretically curvature of the Earth... If you require more rigidly WGS-84 compatible approach checkout the "Vincenty Formula."
I understand where starblue is coming from, but good software engineering is often about trade offs, so it all depends on the accuracy y...
Can I set an unlimited length for maxJsonLength in web.config?
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NOTE: this answer applies only to Web services, if you are returning JSON from a Controller method, make sure you read this SO answer below as well: https://stackoverflow.com/a/7207539/1246870
The MaxJsonLength property cannot be unlimited, is an integer property that d...
Delete specific line number(s) from a text file using sed?
I want to delete one or more specific line numbers from a file. How would I do this using sed?
6 Answers
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What is the difference between a directory and a folder?
... "directory" interchangeably. From a programmer point of view, is there a difference, and if so, what is it? Does it depend on the OS, or is there a broad, general consensus? This at least suggests that there is a difference.
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java: run a function after a specific number of seconds
I have a specific function that I want to be executed after 5 seconds.
How can i do that in Java?
10 Answers
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How to quietly remove a directory with content in PowerShell
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If I want delete only contents of folder but not delete folder?
– Kiquenet
Mar 13 '13 at 8:26
2
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Replacing column values in a pandas DataFrame
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If I understand right, you want something like this:
w['female'] = w['female'].map({'female': 1, 'male': 0})
(Here I convert the values to numbers instead of strings containing numbers. You can convert them to "1" and "0"...
How does this program work?
... promotions are performed on trailing arguments.
and from 6.5.2.2/6,
If the expression that denotes the called function has a type that does not include a prototype, the integer promotions are performed on each argument, and arguments that have type float are promoted to double. These are call...
Difference between $(this) and event.target?
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There is a difference between $(this) and event.target, and quite a significant one. While this (or event.currentTarget, see below) always refers to the DOM element the listener was attached to, event.target is the actual DOM element tha...