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Should try…catch go inside or outside a loop?
...on was getting on my nerves! In the case of optimizations, since we can't know which way the performance would be affected, I guess were back to try-it-and-test (as always).
– Jeffrey L Whitledge
Sep 27 '08 at 18:35
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Validation failed for one or more entities. See 'EntityValidationErrors' property for more details [
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To be honest I don't know how to check the content of the validation errors. Visual Studio shows me that it's an array with 8 objects, so 8 validation errors.
Actually you should see the errors if you drill into that array in Visual studio durin...
How is “int main(){(([](){})());}” valid C++?
...hem, so that's what the first pair of parens around the lambda does. We're now at ([](){}).
Then, () after the first wrapping parens calls the (empty) lambda. We're now at ([](){})()
The whole expression is wrapped in parens again and we get (([](){})()).
At last, ; ends the statement. We arrive ...
How can I increment a date by one day in Java?
...ATE, 1); // number of days to add
dt = sdf.format(c.getTime()); // dt is now the new date
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“Java DateFormat is not threadsafe” what does this leads to?
...ct details of why DateFormat isn't thread-safe, but for me it's enough to know that it is unsafe without synchronization - the exact manners of non-safety could even change between releases.
Personally I would use the parsers from Joda Time instead, as they are thread safe - and Joda Time is a much...
How to include external Python code to use in other files?
...t explicitly name them, like:
from Math import Calculate, Add, Subtract
Now, you can reference Calculate, Add, and Subtract just by their names. If you wanted to import ALL functions from Math, do:
from Math import *
However, you should be very careful when doing this with modules whose conten...
Generate random password string with requirements in javascript
...loor(Math.random() * x.length)] }).join('');
With Letter / Number Rules
Now, a variation on the above. This will generate three random strings from the given charsets (letter, number, either) and then scramble the result.
Please note the below uses sort() for illustrative purposes only. For pro...
Why does the expression 0 < 0 == 0 return False in Python?
...es check if 0 < 0 which obviously returns False onto the python stack.
Now notice line 11: JUMP_IF_FALSE_OR_POP 23
This means that if 0 < 0 returns False perform a jump to line 23.
Now, 0 < 0 is False, so the jump is taken, which leaves the stack with a False which is the return value for...
How do I set up IntelliJ IDEA for Android applications?
... C:\Program Files\Android\android-sdk-windows.
Choose the android version.
Now you can write your program.
Compiling:
Near the Run button you need to select the drop-down-list, choose Edit Configurations
In the Prefer Android Virtual device select the ... button
Click on create, give it a name...
How to make child process die after parent exits?
Suppose I have a process which spawns exactly one child process. Now when the parent process exits for whatever reason (normally or abnormally, by kill, ^C, assert failure or anything else) I want the child process to die. How to do that correctly?
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