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Maximum Java heap size of a 32-bit JVM on a 64-bit OS
The question is not about the maximum heap size on a 32-bit OS, given that 32-bit OSes have a maximum addressable memory size of 4GB, and that the JVM's max heap size depends on how much contiguous free memory can be reserved.
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How to set default browser window size in Protractor/WebdriverJS
For some reason when I run my tests at work the browser is maximized, but when I run them at home it only opens a browser window of about 50% width. This causes some discrepancies with scrolling down, etc, so I'd ideally like to have it open a browser window of the same size on every machine the tes...
Get Image size WITHOUT loading image into memory
...er data"
There are a few file operations in the source like:
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prefix = fp.read(16)
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fp.seek(0)
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but these hardly constitute reading the whole file. In fact .open simply returns a file object and the filename on success. In addition the docs say:
open(file, mode=”r”)
O...
Changing password with Oracle SQL Developer
Many of my users do not use SQLPlus. I cannot give them alter user. We expire passwords every 60 days.
14 Answers
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How do you format an unsigned long long int using printf?
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This isn't a Linux/UNIX thing, the "ll" length modifier was added to Standard C in C99, if it doesn't work in "Microsoft C" then it is because they are not standards compliant.
– Robert Gamble
Oct 17 '08...
Paperclip::Errors::MissingRequiredValidatorError with Rails 4
...uired to include a content_type validation, a file_name validation, or to explicitly state that they're not going to have either.
Paperclip raises Paperclip::Errors::MissingRequiredValidatorError error if you do not do any of this.
In your case, you can add any of the following line to your Post ...
How do I make a Mac Terminal pop-up/alert? Applescript?
...ve my program display an alert, notice, whatever that displays my custom text. How is this done? Also, is it possible to make one with several buttons that sets a variable?
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Which is the best Linux C/C++ debugger (or front-end to gdb) to help teaching programming? [closed]
...C, plus references and STL string and vectors). Students have no previous experience in programming, so I believe that using an interactive debugger would help them understand program flow, variables, and recursion.
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Total size of the contents of all the files in a directory [closed]
...en up by files on the disk, use the -b or --bytes option (if you got a Linux system with GNU coreutils):
% du -sbh <directory>
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Python progression path - From apprentice to guru
...in the lab. I more or less fell in love with the way Python permits me to express beautiful solutions and also with the semantics of the language that allows such a natural flow from thoughts to workable code.
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