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Difference between java.util.Random and java.security.SecureRandom
My team got handed over some server side code (in Java) that generates random tokens and I have a question regarding the same -
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How To Change DataType of a DataColumn in a DataTable?
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Consider also altering the return type:
select cast(columnName as int) columnName from table
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do you have kcachegrind like profiling tools for mac [closed]
...rew install qcachegrind
which will download other dependencies such as qtand graphviz.
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How to determine if a number is odd in JavaScript
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@awm - It seems like you don't know JavaScript. You can't cast to boolean with (bool) (that'll give an error) and in any case you don't need to: return value%2 == 0; will do the job since the == operator returns a boolean.
– nnnnnn
Aug 13 '12 a...
How to clean project cache in Intellij idea like Eclipse's clean?
...for your installed version. The location of this folder depends on your OS and version installed.
Windows Vista, 7, 8, 10
<SYSTEM DRIVE>\Users\<USER ACCOUNT NAME>\.<PRODUCT><VERSION>
Linux/Unix
~/.<PRODUCT><VERSION>
Mac OS
~/Library/Caches/<PRODUCT><V...
What exactly does stringstream do?
I am trying to learn C++ since yesterday and I am using this document: http://www.cplusplus.com/files/tutorial.pdf (page 32) . I found a code in the document and I ran it. I tried inputting Rs 5.5 for price and an integer for quantity and the output was 0.
I tried inputting 5.5 and 6 and the output...
Purpose of #!/usr/bin/python3
...ey would start with #!/usr/bin/python3 on the first line. I don't understand why we have this.
6 Answers
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Linux delete file with size 0 [duplicate]
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This will delete all the files in a directory (and below) that are size zero.
find /tmp -size 0 -print -delete
If you just want a particular file;
if [ ! -s /tmp/foo ] ; then
rm /tmp/foo
fi
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How Can I Download a File from EC2 [closed]
...ome Web server on your instance, configure HTTPS if your file is sensitive and then download using your browser, here are some tutorials:
http://flurdy.com/docs/ec2/apache_tomcat/
http://www.robotmedia.net/2011/04/how-to-create-an-amazon-ec2-instance-with-apache-php-and-mysql-lamp/
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How can I make an EXE file from a Python program? [duplicate]
...A .py to .exe converter using a simple graphical interface built using Eel and PyInstaller in Python.
py2exe is probably what you want, but it only works on Windows.
PyInstaller works on Windows and Linux.
Py2app works on the Mac.
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