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Replacing a char at a given index in string? [duplicate]
String does not have ReplaceAt() , and I'm tumbling a bit on how to make a decent function that does what I need. I suppose the CPU cost is high, but the string sizes are small so it's all ok
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Cleanest way to write retry logic?
...imply retry the same call can be dangerous if used as a general exception handling mechanism. Having said that, here's a lambda-based retry wrapper that you can use with any method. I chose to factor the number of retries and the retry timeout out as parameters for a bit more flexibility:
public st...
How can I “unuse” a namespace?
... BCB6). I then used to fall back on adding explicit namespaces on conflict and - even worse - include a header for avoiding type name conflicts...
– Wolf
Sep 2 '14 at 8:15
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What datatype to use when storing latitude and longitude data in SQL databases? [duplicate]
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For longitudes use: Decimal(9,6), and latitudes use: Decimal(8,6)
If you're not used to precision and scale parameters, here's a format string visual:
###.###### and ##.######
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What happens when there's insufficient memory to throw an OutOfMemoryError?
I am aware that every object requires heap memory and every primitive/reference on the stack requires stack memory.
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Adding multiple columns AFTER a specific column in MySQL
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[As an additional information] Multiple ADD, ALTER, DROP, and CHANGE clauses are permitted in a single ALTER TABLE statement, separated by commas. This is a MySQL extension to standard SQL, which permits only one of each clause per ALTER TABLE statement.
– info...
What is the difference between instanceof and Class.isAssignableFrom(…)?
...ass of B at compile time. When using isAssignableFrom() it can be dynamic and change during runtime.
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Efficient way to remove ALL whitespace from String?
I'm calling a REST API and am receiving an XML response back. It returns a list of a workspace names, and I'm writing a quick IsExistingWorkspace() method. Since all workspaces consist of contiguous characters with no whitespace, I'm assuming the easiest way to find out if a particular workspace i...
How do I flush the cin buffer?
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Possibly:
std::cin.ignore(INT_MAX);
This would read in and ignore everything until EOF. (you can also supply a second argument which is the character to read until (ex: '\n' to ignore a single line).
Also: You probably want to do a: std::cin.clear(); before this too to reset the...
How does '20 seconds' work in Scala?
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There are a few things going on.
First, Scala allows dots and parens to be omitted from many method calls, so 20 seconds is equivalent to 20.seconds()*.
Second, an "implicit conversion" is applied. Since 20 is an Int and Int has no seconds method, the compiler searches for an impli...