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Is it expensive to use try-catch blocks even if an exception is never thrown?
...eptions are thrown asynchronously, they are not async but thrown in safe points. and this part try has some minor costs associated with it. Java cannot do some optimizations on code in a try block that it would otherwise do does need a serious reference. At some point the code is very likely to be w...
How to clone an InputStream?
...same information more than once, and the input data is small enough to fit into memory, you can copy the data from your InputStream to a ByteArrayOutputStream.
Then you can obtain the associated array of bytes and open as many "cloned" ByteArrayInputStreams as you like.
ByteArrayOutputStream baos ...
Subtract days from a date in JavaScript
...ime. So will correctly subtract 7 days time from the Date object. When you convert it to a string in your specified time zone it will correctly show the time for that zone.
– awjr
Oct 2 '15 at 14:40
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How to check if a word is an English word with Python?
...
The same mention applies here too: a lot faster when converted to a set: set(words.words())
– Iulius Curt
Sep 30 '14 at 19:41
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What do all of Scala's symbolic operators mean?
...
I divide the operators, for the purpose of teaching, into four categories:
Keywords/reserved symbols
Automatically imported methods
Common methods
Syntactic sugars/composition
It is fortunate, then, that most categories are represented in the question:
-> // Automati...
Using generic std::function objects with member functions in one class
For one class I want to store some function pointers to member functions of the same class in one map storing std::function objects. But I fail right at the beginning with this code:
...
Asynchronously wait for Task to complete with timeout
...
How about this:
int timeout = 1000;
var task = SomeOperationAsync();
if (await Task.WhenAny(task, Task.Delay(timeout)) == task) {
// task completed within timeout
} else {
// timeout logic
}
And here's a great blog post "Crafting ...
Do while loop in SQL Server 2008
...p-with-continue-and-break-keywords/
Example of WHILE Loop
DECLARE @intFlag INT
SET @intFlag = 1
WHILE (@intFlag <=5)
BEGIN
PRINT @intFlag
SET @intFlag = @intFlag + 1
END
GO
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Example of WHILE Loop with BREAK keyword
DECLARE @intFlag INT
SET @intFlag =...
Android: How to bind spinner to custom object list?
In the user interface there has to be a spinner which contains some names (the names are visible) and each name has its own ID (the IDs are not equal to display sequence). When the user selects the name from the list the variable currentID has to be changed.
...
What Every Programmer Should Know About Memory?
...t, well, I don't think it's for "every programmer". It's more suitable for system/embedded/kernel guys.
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