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Should a retrieval method return 'null' or throw an exception when it can't produce the return value
...xception would mean that there was a problem.
If the value can be missing or present and both are valid for the application logic then return a null.
More important: What do you do other places in the code? Consistency is important.
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What is the difference between and ?
...t;
The <section> element represents a generic section of a document or application. A section, in this context, is a thematic grouping of content. Each section should be identified, typically by including a heading (h1-h6 element) as a child of the <section> element.
Examples of section...
Clang vs GCC - which produces faster binaries? [closed]
...ered Clang recently and I'm pondering switching. There is one deciding factor though - quality (speed, memory footprint, reliability) of binaries it produces - if gcc -O3 can produce a binary that runs 1% faster, or Clang binaries take up more memory or just fail due to compiler bugs, it's a deal-b...
Is there a Java standard “both null or equal” static method?
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This is only nullsafe concering x. For y it depends on the implementation of equals of the given object. (the implementation is return (x == y) || (x != null && x.equals(y));)
– emi-le
Apr 6 '18 at 9:09
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Is there a way to check if WPF is currently executing in design mode or not?
...can check if the code is currently executing in design mode (e.g. in Blend or Visual Studio) or not?
9 Answers
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How to correctly use “section” tag in HTML5?
...t spec:
The section element represents a generic section of a document or
application. A section, in this context, is a thematic grouping of
content, typically with a heading.
Examples of sections would be chapters, the various tabbed pages in a
tabbed dialog box, or the numbered sect...
Why can a class not be defined as protected?
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Because it makes no sense.
Protected class member (method or variable) is just like package-private (default visibility), except that it also can be accessed from subclasses.
Since there's no such concept as 'subpackage' or 'package-inheritance' in Java, declaring class protected or...
When should I use h:outputLink instead of h:commandLink?
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The <h:outputLink> renders a fullworthy HTML <a> element with the proper URL in the href attribute which fires a bookmarkable GET request. It cannot directly invoke a managed bean action method.
<h:outputLink value="destination.xhtml">link text<...
How to do stateless (session-less) & cookie-less authentication?
Bob uses a web application in order to achieve something. And:
2 Answers
2
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How to read a text file into a list or an array with Python
I am trying to read the lines of a text file into a list or array in python. I just need to be able to individually access any item in the list or array after it is created.
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