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How should I have explained the difference between an Interface and an Abstract class?
...Implement the same default behavior here
// that is shared by all subclasses.
}
// Each subclass needs to provide their own implementation of this only:
public abstract void checkDBforUser();
}
Now in each child class, we only need to implement one method - the method that i...
Use grep --exclude/--include syntax to not grep through certain files
... Any suggestions for what to use when --exclude-dir is unavailable? In all my attemps, --exclude does not appear to fit the bill.
– JMTyler
Mar 31 '14 at 18:05
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How to make a new List in Java
... up the list interface in the Java documentation to get a definite list of all the classes that implement List: docs.oracle.com/javase/7/docs/api/java/util/List.html
– David Mason
Jun 10 '14 at 14:10
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Detect the specific iPhone/iPod touch model [duplicate]
...on 4,4s,and 5, but it failed hard in production and didn't seem to work at all which caused lots of problems.
– Dave Chenell
May 7 '13 at 2:24
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How to make ruler always be shown in Sublime text 2?
...e shown in every file with specific line-height. But I have to show it manually in every file.
7 Answers
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How To Launch Git Bash from DOS Command Line?
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What if it's not installed on system drive? What if it's not installed in program files?
– Michael Kruglos
Mar 16 '17 at 18:04
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How do I run a simple bit of code in a new thread?
...it does. What it does, is configure whether the thread will be killed when all foreground threads have died, or whether the thread will keep the application alive. If you don't want your thread terminated mid-execution, do not set IsBackground to true.
– Zero3
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Why does Vim save files with a ~ extension?
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Actually - do I have to have both nobackup and nowritebackup? Is there a way to write a copy of the file as a backup, but not do this write/delete/rename stuff?
– Merlyn Morgan-Graham
Mar 2...
What's the difference between VARCHAR and CHAR?
...your content is a fixed size" it means the rows of your table must contain all fixed size fields. You get no performance improvement if you use CHAR against VARCHAR in one field, but the table contains other fields that are VARCHAR.
– Marco Demaio
May 20 '10 at...
What does ~~ (“double tilde”) do in Javascript?
...he value to a string or a boolean), then inverts the lowest 31 bits. Officially ECMAScript numbers are all floating-point, but some numbers are implemented as 31-bit integers in the SpiderMonkey engine.
You can use it to turn a 1-element array into an integer. Floating-points are converted accordin...