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Implements vs extends: When to use? What's the difference?
Please explain in an easy to understand language or a link to some article.
18 Answers
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Is there a concise way to iterate over a stream with indices in Java 8?
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.filter(n -> n.length() <= index.incrementAndGet())
.collect(Collectors.toList());
Note that using the latter method on a parallel stream could break as the items would not necesarily be processed "in order".
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@import vs #import - iOS 7
I am playing around with some of the new iOS 7 features and working with some of the Image Effects as discussed in the WWDC video "Implementing Engaging UI on iOS". For producing a blur effect within the source code for the session, UIImage was extended via a category which imports UIKit like so:
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List of standard lengths for database fields
I'm designing a database table and once again asking myself the same stupid question: How long should the firstname field be?
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How can I get the current date and time in the terminal and set a custom command in the terminal for
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The command is date
To customise the output there are a myriad of options available, see date --help for a list.
For example, date '+%A %W %Y %X' gives Tuesday 34 2013 08:04:22 which is the name of the day of the week, the week num...
Notification when a file changes?
...oid CreateFileWatcher(string path)
{
// Create a new FileSystemWatcher and set its properties.
FileSystemWatcher watcher = new FileSystemWatcher();
watcher.Path = path;
/* Watch for changes in LastAccess and LastWrite times, and
the renaming of files or directories. */
wa...
How does the Windows Command Interpreter (CMD.EXE) parse scripts?
...ovides good help regarding how to write batch scripts that the Windows Command Interpreter will run.
7 Answers
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CSS: 100% font size - 100% of what?
There are many articles and questions about percentage-sized vs other-sized fonts. However, I can not find out WHAT the reference of the percent-value is supposed to be. I understand this is 'the same size in all browsers'. I also read this, for instance:
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Conversion from Long to Double in Java
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And if its a literal just 15552451d
– Jon Freedman
Sep 16 '10 at 8:16
2
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How do I reference a specific issue comment on github?
...o format their reference like so: #10359 (comment), note that GitHub will handle this formatting automatically if you just paste the link as-is - without wrapping it in [text](url) markdown :)
– Spen
Jan 8 '17 at 23:42
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