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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[...
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...
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...
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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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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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
2
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How to remove application from app listings on Android Developer Console
...et you cannot delete it. (Each package name is unique and Google remembers all package names anyway so you could use this a reminder)
The "Delete" button only works for unpublished version of your app. Once you published your app or a particular version of it, you cannot delete it from the Market. H...
Hide hidden(dot) files in github atom editor
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Edit > Preferences > Packages
In the field below "Installed Packages" type: "Tree View". This package has a few settings you can toggle, "Hide Ignored Names" is what you're looking for.
It's a really buried setting, not sure why.
You can also add it to your config:
'tree-view...
Remove URL parameters without refreshing page
...L, add/insert/push the new URL to history entries, and make it current URL
allowing users to bookmark the page with the same parameters (to show the same contents)
to programmatically access the data through the stateObj then parse from the anchor
As I understood from your comment, you want to c...