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Loader lock error
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If I run the project as Native debugging, with all exceptions on default (reset all), the debug window shows <mda:msg xmlns:mda="schemas.microsoft.com/CLR/2004/10/mda"> <!-- Attempting managed execution inside OS Loader lock.... etc --> <mda...
initializing a boolean array in java
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I just need to initialize all the array elements to Boolean false.
Either use boolean[] instead so that all values defaults to false:
boolean[] array = new boolean[size];
Or use Arrays#fill() to fill the entire array with Boolean.FALSE:
Boolean[...
If i synchronized two methods on the same class, can they run simultaneously?
... a add on to this question. Suppose both method are static now methodA is called using Class while methodB is called using object like A.methodA() in t1 and obj.methodB() in t2. What will happen now, will they block????
– amod
Mar 21 '13 at 12:16
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What's faster, SELECT DISTINCT or GROUP BY in MySQL?
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They are essentially equivalent to each other (in fact this is how some databases implement DISTINCT under the hood).
If one of them is faster, it's going to be DISTINCT. This is because, although the two are the same, a query optimizer wo...
Removing MySQL 5.7 Completely [closed]
I am trying to uninstall mysql from my ubuntu 12.04 completely. But not able to.
3 Answers
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Is there a “previous sibling” selector?
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I found a way to style all previous siblings (opposite of ~) that may work depending on what you need.
Let's say you have a list of links and when hovering on one, all the previous ones should turn red. You can do it like this:
/* default lin...
Fetch the row which has the Max value for a column
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This will retrieve all rows for which the my_date column value is equal to the maximum value of my_date for that userid. This may retrieve multiple rows for the userid where the maximum date is on multiple rows.
select userid,
my_date,
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How do I enable the column selection mode in Eclipse?
News wrote that Eclipse 3.5 finally supports column selection.
Unfortunately I don't know HOW to enable it. I tried pressing the ALT-key like I am used to in Visual Studio and all other Microsoft products but that had no effect.
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How to list the size of each file and directory and sort by descending size in Bash?
... @ErikTrautman to list the files also you need to add -a and use --all instead of --max-depth=1 like so du -a -h --all | sort -h
– Franco
Jun 14 '14 at 1:40
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Can you “compile” PHP code and upload a binary-ish file, which will just be run by the byte code int
...depends on your host, but if I had to guess, I'd guess many hosts wouldn't allow it.
– Frank Farmer
May 21 '13 at 0:39
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