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Java HashMap performance optimization / alternative

... @Oscar - more collisions equals more work to do, because now you have to do a linear search of the hash chain. If you have 26,000,000 distinct values per equals(), and 26,000 distinct values per hashCode(), then the bucket chains will have 1,000 objects each. –...
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How do you crash a JVM?

...g the 4 Gb memory limit under the 32-bit versions (we generally use 64-bit now). share | improve this answer | follow | ...
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Resize image in PHP

...pled($dst, $src, 0, 0, 0, 0, $w, $h, $width, $height); return $dst; } Now let's handle the upload part. First step, upload the file to your desired directory. Then called one of the above functions based on file type (jpg, png or gif) and pass the absolute path of your uploaded file as below: ...
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Link to “pin it” on pinterest without generating a button

...error when trying to pin: Parameter 'method' (value link) is not one of unknown, uploaded, scraped, bookmarklet, email, iphone, button, ipad, android, android_tablet, api_sdk, extension, api_other, bad.. The solution is to keep the url as button but ignore the pinterest script. see stackoverflow.com...
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Why can't I reference System.ComponentModel.DataAnnotations?

...or 2010. I added this file and it seems to 'work', in that IntelliSense is now recognizing attributes on class members, such as [Display(Name = "My Property Name")]. Whether or not this works for everything else in this .dll I don't know.] (1) Microsoft Visual Studio Professional 2013 Version 12...
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Shell one liner to prepend to a file

...table, and should not be relied upon for anything even vaguely important. Now, with all that out of the way the answer was: Creating another file descriptor for the file (exec 3<> yourfile) thence writing to that (>&3) seems to overcome the read/write on same file dilemma. Works for...
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Fast Bitmap Blur For Android SDK

... Ran into the known ArrayIndexOutOfBoundsException, and after some analysis, I believe it is caused by an incorrect optimization by the Dalvik VM. In the for loop immediately before the bad dereference, either the calculation of the rbs var...
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In Eclipse, what can cause Package Explorer “red-x” error-icon when all Java sources compile without

...ackage directories had accidentally been copied so that an extra directory now existed called "Copy of dagskra" containing Java files with wrong package declarations. In addition the errors in this "new" directory don't show up with a "red-x" in the package that it exists in: Snapshot from Package ...
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Error on renaming database in SQL Server 2008 R2

...w to close this connection (there should only be one since the database is now in single user mode) KILL connection_ID Replace connection_id with the ID in the results of the 1st query share | ...
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How to inflate one view with a layout

... Just tried this now, I needed: View child = getLayoutInflater().inflate(R.layout.child,null); – James May 24 '12 at 0:23 ...