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Command prompt won't change directory to another drive
I'm trying to compile some java (learning java currently), and to do so I need to change command-prompt's directory (using javac).
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Python: List vs Dict for look up table
...f you don't need to associate values, use sets.
Memory
Both dictionaries and sets use hashing and they use much more memory than only for object storage. According to A.M. Kuchling in Beautiful Code, the implementation tries to keep the hash 2/3 full, so you might waste quite some memory.
If you...
MySQL get the date n days ago as a timestamp
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What is the different with the first and second query?
– Codler
Jan 30 '12 at 14:43
5
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PHP script to loop through all of the files in a directory?
...of files, such as the script itself or other "system" files. (Like the . and .. "directories".)
8 Answers
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C# generic type constraint for everything nullable
...time check, you can check if the type is not a reference or nullable type, and throw an exception if that's the case.
I realise that only having a runtime check may be unacceptable, but just in case:
public class Foo<T>
{
private T item;
public Foo()
{
var type = typeof(...
Hibernate: hbm2ddl.auto=update in production?
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Also updating a db schema should be handled by the professionals ( dbas ). Recovering from a bad db change is difficult at best. Vova didn't mention it - but what happens if hibernate's update decides to drop a column and re-add it because the type or size chan...
How to list only the file names that changed between two commits?
...ly HEAD~10 HEAD~5
to see the differences between the tenth latest commit and the fifth latest (or so).
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How to get the list of properties of a class?
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Suggestion: Expand answer to cover protected/private/static/inherited properties.
– Richard
Apr 10 '09 at 9:39
1
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Removing item from vector, while in C++11 range 'for' loop?
I have a vector of IInventory*, and I am looping through the list using C++11 range for, to do stuff with each one.
12 Answ...
How do you specify command line arguments in Xcode 4?
I just upgraded to Xcode 4 and can't find much documentation on it yet, since it just went gold master. I need to specify a command line argument for testing my application.
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