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What is the memory consumption of an object in Java?

...ect references.) As a result, a 64-bit JVM would typically require 30-50% more heap space. (Should I use a 32- or a 64-bit JVM?, 2012, JDK 1.7) Boxed types, arrays, and strings Boxed wrappers have overhead compared to primitive types (from JavaWorld): Integer: The 16-byte result is a littl...
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psql: FATAL: role “postgres” does not exist

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How to Flatten a Multidimensional Array?

... It's more "logical" than "catchy". Not everything can have a fantastic name like JOGL, Knol or Azure :-) – VolkerK Aug 24 '09 at 8:35 ...
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How to run the sftp command with a password from Bash script?

...ed but probably that meets your requirement) Use expect (least secured and more coding needed) If you decide to give sshpass a chance here is a working script snippet to do so: export SSHPASS=your-password-here sshpass -e sftp -oBatchMode=no -b - sftp-user@remote-host << ! cd incoming ...
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Make sure only a single instance of a program is running

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Filtering for empty or NULL names in a queryset

...ome_field = TRUE AND other_field = TRUE) Alternatively, if your logic is more complex than that, you could use Django's Q objects: from django.db.models import Q Name.objects.exclude(Q(alias__isnull=True) | Q(alias__exact='')) For more info see this page and this page in the Django docs. As an...
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How to get first 5 characters from string [duplicate]

...for accessing array elements and string offsets is deprecated from PHP 7.4 More information: https://wiki.php.net/rfc/deprecate_curly_braces_array_access share | improve this answer | ...
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What is difference between monolithic and micro kernel?

... both Mac OS X and Windows are hybrid kernel as in more closely related to a monolithic kernel. examples of micro kernels would be: Mach QNX AmigaOS Minix – zeitue Jun 16 '12 at 6:36 ...
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the source file is different from when the module was built

...g? Check the system tray and look for a page with a cog icon (you may have more than one): (source: msdn.com) Right click and close/exit it. You may have more than one. Can you debug your changes now? Are you running the debug version but have only built the release version (or vice versa)? D...
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How to dynamically change header based on AngularJS partial view?

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