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How to define custom exception class in Java, the easiest way?
...nstructors, you need to define the one taking a String in your class. Typically you use super(message) in your constructor to invoke your parent constructor. For example, like this:
public class MyException extends Exception {
public MyException(String message) {
super(message);
}
}...
onConfigurationChanged not getting called
... event. The problem is that the method, which I override, is not getting called when I change the orientation of the phone. Not getting called at all.
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Why doesn't Java allow overriding of static methods?
...One was a concern with performance: there had been a lot of criticism of Smalltalk about it being too slow (garbage collection and polymorphic calls being part of that) and Java's creators were determined to avoid that. Another was the decision that the target audience for Java was C++ developers. M...
Precise Financial Calculation in JavaScript. What Are the Gotchas?
...avoid when using JavaScript to do this type of math—if it is possible at all!
7 Answers
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Should I learn C before learning C++? [closed]
...es not mean you need to learn C first.
If you learn C++ you will eventually learn most of C with some differences between the languages that you will learn over time. In fact its a very hard thing to write proper C++ because intermediate C++ programmers tend to write C/C++.That is true whether ...
Capture Signature using HTML5 and iPad
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I apologize. I think your documentation is actually adequate. It seemed limited until I realized just how easy this is to use. I got it fully implemented in a form, storing in the database and retrieving back to page in under an hour. I suppose, I was comparing it to libr...
CSV in Python adding an extra carriage return, on Windows
... best approach. For example, it doesn't work on Python 3 unless you encode all of your inputs to the CSV writer. Also, it doesn't address the issue if the script wants to use sys.stdout as the stream.
I suggest instead setting the 'lineterminator' attribute when creating the writer:
import csv
imp...
When is JavaScript synchronous?
... synchronous and when it will be asynchronous? Does jQuery affect this at all?
7 Answers
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How can I match multiple occurrences with a regex in JavaScript similar to PHP's preg_match_all()?
... comment: rather than using regex, we now have URLSearchParams, which does all of this for us, so no custom code, let alone regex, are necessary anymore.
– Mike 'Pomax' Kamermans
Browser support is listed here https://caniuse.com/#feat=urlsearchparams
I would suggest an alternative reg...
How to update a single library with Composer?
I need to install only 1 package for my SF2 distribution (DoctrineFixtures).
8 Answers
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