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How to pass a function as a parameter in Java? [duplicate]
...hod(Callable<T> func) {
return func.call();
}
This pattern is known as the Command Pattern.
Keep in mind you would be best off creating an interface for your particular usage. If you chose to go with callable, then you'd replace T above with whatever type of return value you expect, suc...
Android Studio: Default project directory
...re really isn't much more to it other than what I explained here.
Let me know if you need anything else.
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How to suppress Update Links warning?
...ctedly got another:
WARNING #2
So, I suppose my testing environment is now pretty much similar to OP's) So far so good, we finally go to
VBA Opening
Now I'll try all possible options step by step to make the picture clear. I'll share only relevant lines of code for simplicity (complete sample ...
arrow operator (->) in function heading
...ifier ( argument-declarations... ) -> return_type
They are equivalent. Now when they are equivalent, why do you ever want to use the latter? Well, C++11 introduced this cool decltype thing that lets you describe type of an expression. So you might want to derive the return type from the argument...
What are the best practices for catching and re-throwing exceptions?
...database!";
die;
}
Logging or partial cleanup
Sometimes you do not know how to properly handle an exception inside a specific context; perhaps you lack information about the "big picture", but you do want to log the failure as close to the point where it happened as possible. In this case, yo...
What are C++ functors and their uses?
...
int operator()(int y) const { return x + y; }
private:
int x;
};
// Now you can use it like this:
add_x add42(42); // create an instance of the functor class
int i = add42(8); // and "call" it
assert(i == 50); // and it added 42 to its argument
std::vector<int> in; // assume this conta...
Can't specify the 'async' modifier on the 'Main' method of a console app
...Update, 2017-11-30: As of Visual Studio 2017 Update 3 (15.3), the language now supports an async Main - as long as it returns Task or Task<T>. So you can now do this:
class Program
{
static async Task Main(string[] args)
{
Bootstrapper bs = new Bootstrapper();
var list ...
How do you detect/avoid Memory leaks in your (Unmanaged) code? [closed]
...
Valgrind also now works on OS X, so linux is not your only option.
– Michael Anderson
Oct 12 '10 at 3:01
1
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Visual Studio debugging “quick watch” tool and lambda expressions
...e function Example is run in the debugger it will stop at the Break line. Now imagine if the user typed the following into the watch window
(Func<int>)(() => v2);
In order to properly execute this the debugger (or more appropriate the EE) would need to create a closure for variable v2. ...
How can I stop redis-server?
...6716] 02 Aug 15:48:44 * DB saved on disk
[6716] 02 Aug 15:48:44 # Redis is now ready to exit, bye bye...
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