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Java Equivalent of C# async/await?
...C# developer but occasionally I develop application in Java. I'm wondering if there is any Java equivalent of C# async/await?
In simple words what is the java equivalent of:
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What's so bad about Template Haskell?
...ond where it will appear; you can have a value of type Exp, but you don't know if it is an expression that represents a [Char] or a (a -> (forall b . b -> c)) or whatever. TH would be more reliable if one could express that a function may only generate expressions of a certain type, or only fu...
Argparse: Way to include default values in '--help'?
... Note that in that case no attribute will be added to the namespace result if that argument was omitted, see the default documentation.
– Martijn Pieters♦
Jun 7 '13 at 10:18
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Time complexity of Sieve of Eratosthenes algorithm
...per bound of O(n log log n) + O(n) = O(n log log n) arithmetic operations. If you count bit operations, since you're dealing with numbers up to n, they have about log n bits, which is where the factor of log n comes in, giving O(n log n log log n) bit operations.
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Cannot use ref or out parameter in lambda expressions
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Lambdas have the appearance of changing the lifetime of variables that they capture. For instance the following lambda expression causes the parameter p1 to live longer than the current method frame as its value can be accessed after the method frame is no longer on th...
How do you represent a JSON array of strings?
...l structure but the string the OP posted is perfectly valid JSON: codebeautify.org/jsonviewer/92ac7b
– ChrisR
May 7 '14 at 9:28
1
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Prepend a level to a pandas MultiIndex
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It took me a while to realize that if you have more than one key for FirstLevel as in ['Foo', 'Bar'] the first argument will also need to have the corresponding length, i.e., [df] * len(['Foo', 'Bar'])!
– mrclng
Dec 13 '1...
Golang production web application configuration
...han HAProxy and capable of doing more).
HAProxy is very easy to configure if you read its documentation (HTML version). My whole haproxy.cfg file for one of my Go projects follows, in case you need a starting pont.
global
log 127.0.0.1 local0
maxconn 10000
user ...
Java - No enclosing instance of type Foo is accessible
...ch (by definition) is associated with a particular instance of Hello (even if it never uses or refers to it), which means it's an error to say new Thing(); without having a particular Hello instance in scope.
If you declare it as a static class instead, then it's a "nested" class, which doesn't ne...
NSObject +load and +initialize - What do they do?
...able file, the runtime sends the load message very early in the process's lifetime. For classes that are in a shared (dynamically-loaded) library, the runtime sends the load message just after the shared library is loaded into the process's address space.
Furthermore, the runtime only sends load t...