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Given an RGB value, how do I create a tint (or shade)?
Given an RGB value, like 168, 0, 255 , how do I create tints (make it lighter) and shades (make it darker) of the color?
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When/Why to use Cascading in SQL Server?
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Summary of what I've seen so far:
Some people don't like cascading at all.
Cascade Delete
Cascade Delete may make sense when the semantics of the relationship can involve an exclusive "is part of" description. For example, an OrderLine record is part of its parent...
try/catch versus throws Exception
...reas the first one will let it propagate. (I'm assuming that showException doesn't rethrow it.)
So if you call the first method and "do something" fails, then the caller will have to handle the exception. If you call the second method and "do something" fails, then the caller won't see an exception...
Does it make sense to do “try-finally” without “catch”?
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Why does this code do it this way?
Because apparently the code doesn’t know how to handle exceptions at this level. That’s fine – as long as one of the callers does, i.e. as long as the exception gets ultimately handled s...
Best way to add Activity to an Android project in Eclipse?
...ect, I manually create a new class - is that the best / preferred way? How do others handle that?
8 Answers
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Call an activity method from a fragment
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BE careful cause unexpected things happen if cast doesn't work.. :S
– Ewoks
Dec 14 '12 at 12:34
49
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How do I get the entity that represents the current user in Symfony2?
I am using the Symfony security setup. Everything works fine, but I don't know how to do one important thing:
6 Answers
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How do you remove duplicates from a list whilst preserving order?
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seen = set()
[x for x in seq if x not in seen and not seen.add(x)]
and doesn't utilize the ugly hack:
not seen.add(x)
which relies on the fact that set.add is an in-place method that always returns None so not None evaluates to True.
Note however that the hack solution is faster in raw speed...
Objective-C: Reading a file line by line
... want to treat each line as an NSString. What is the most efficient way of doing this?
18 Answers
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How do you read a file into a list in Python? [duplicate]
I want to prompt a user for a number of random numbers to be generated and saved to a file. He gave us that part. The part we have to do is to open that file, convert the numbers into a list, then find the mean, standard deviation, etc. without using the easy built-in Python tools.
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