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Using Regex to generate Strings rather than match them
I am writing a Java utility which helps me to generate loads of data for performance testing. It would be really cool to be able to specify a regex for Strings so that my generator spits out things which match this. Is there something out there already baked which I can use to do this? Or is th...
Resolving ambiguous overload on function pointer and std::function for a lambda using +
...erence is observable by a program, then it's illegal. Once I asked in comp.lang.c++.moderated if a closure type could add a typedef for result_type and the other typedefs required to make them adaptable (for instance by std::not1). I was told that it could not because this was observable. I'll try t...
Why does String.valueOf(null) throw a NullPointerException?
...Of method is overloaded:
String.valueOf(Object)
String.valueOf(char[])
Java Specification Language mandates that in these kind of cases, the most specific overload is chosen:
JLS 15.12.2.5 Choosing the Most Specific Method
If more than one member method is both accessible and applicable to...
What is difference between Collection.stream().forEach() and Collection.forEach()?
...on specified in Stream.forEach is required to be non-interfering. (See the java.util.stream package doc.) Iterable.forEach potentially has fewer restrictions. For the collections in java.util, Iterable.forEach will generally use that collection's Iterator, most of which are designed to be fail-fast ...
How can I ask the Selenium-WebDriver to wait for few seconds in Java?
I'm working on a Java Selenium-WebDriver. I added
15 Answers
15
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Inherit docstrings in Python class inheritance
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You're not the only one! There was a discussion on comp.lang.python about this a while ago, and a recipe was created. Check it out here.
"""
doc_inherit decorator
Usage:
class Foo(object):
def foo(self):
"Frobber"
pass
class Bar(Foo):
@doc_inherit
d...
Java URL encoding of query string parameters
... + URLEncoder.encode(q, StandardCharsets.UTF_8);
When you're still not on Java 10 or newer, then use StandardCharsets.UTF_8.toString() as charset argument, or when you're still not on Java 7 or newer, then use "UTF-8".
Note that spaces in query parameters are represented by +, not %20, which is le...
IntelliJ does not show 'Class' when we right click and select 'New'
...we right click on a directory, select New and then get the context menu, Java based options are not shown. Currently get things like File, some HTML options, XML options.
...
How to match “any character” in regular expression?
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You may also sometimes need to match newlines in Java regexes in contexts where you cannot pass Pattern.DOTALL, such as when doing a multi-line regex search in Eclipse, or as a user of any Java application that offers regex search. Based on regular-expression.info's guide, ...
How to convert hex to rgb using Java?
How can I convert hex color to RGB code in Java? Mostly in Google, samples are on how to convert from RGB to hex.
17 Answer...