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How to rename files and folder in Amazon S3?
...d it works:
aws s3 --recursive mv s3://<bucketname>/<folder_name_from> s3://<bucket>/<folder_name_to>
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How do I change the IntelliJ IDEA default JDK?
...utside of IDEA and then import the project into IDEA using Import project from external model . This works great, except that in my poms I specify that the maven-compiler-plugin should use JDK 1.6, and when I import, IDEA informs me that the Language Level Changed and that Language level change...
Spring 3 MVC accessing HttpRequest from controller
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Doesn't doing it this way prevent the controller bean from being a singleton?
– jjmontes
Oct 30 '13 at 13:07
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How is the java memory pool divided?
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Heap memory
The heap memory is the runtime data area from which the Java VM allocates memory for all class instances and arrays. The heap may be of a fixed or variable size. The garbage collector is an automatic memory management system that reclaims heap memory for objects.
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How to establish a connection pool in JDBC?
...d too much problems with DBCP under heavy load. Using C3P0 is dead simple. From the documentation:
ComboPooledDataSource cpds = new ComboPooledDataSource();
cpds.setDriverClass( "org.postgresql.Driver" ); //loads the jdbc driver
cpds.setJdbcUrl( "jdbc:postgresql://localhost/testdb" );
cpds.setUser(...
DateTime to javascript date
From another answer on Stackoverflow is a conversion from Javascript date to .net DateTime:
10 Answers
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If strings are immutable in .NET, then why does Substring take O(n) time?
...(n) is O(1) if n does not grow large. Most people extract tiny substrings from tiny strings, so how the complexity grows asymptotically is completely irrelevant.
The long answer is:
An immutable data structure built such that operations on an instance permit re-use of the memory of the original w...
Is there a way to crack the password on an Excel VBA Project?
...ow the hell can I make my VBA project protected stronger to prevent others from using this hack on it :)
– EranG
Jan 25 '16 at 12:01
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A variable modified inside a while loop is not remembered
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what if the source was from tail -f instead of fixed text?
– mt eee
Nov 9 '18 at 7:57
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AES vs Blowfish for file encryption
...e that has the key in it, or maybe blackmailing your friend to copy a file from your computer. Those are going to be where you are most vulnerable, not the algorithm.
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