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How to clone ArrayList and also clone its contents?
... fields
They don't throw unnecessary checked exceptions
They don't require casts.
Consider another benefit of using copy constructors: Suppose you have a HashSet s, and you want to copy it as a TreeSet. The clone method can’t offer this functionality, but it’s easy with a conversion constructo...
Calculate the number of business days between two dates?
... Good work, but perhaps use the DayOfWeek enums themselves rather than cast them to ints?
– Neo
Jun 27 '12 at 12:56
3
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Does PowerShell support constants?
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To use a specific type of value, say Int64, you can explicitly cast the value used in set-variable.
For instance:
set-variable -name test -value ([int64]100) -option Constant
To check,
$test | gm
And you'll see that it is an Int64 (rather than Int32, which would be normal for the...
How do I convert an array object to a string in PowerShell?
...r $ofs)
# This Is a cat
"$a"
# This-Is-a-cat
$ofs = '-' # after this all casts work this way until $ofs changes!
"$a"
Using operator join
# This-Is-a-cat
$a -join '-'
# ThisIsacat
-join $a
Using conversion to [string]
# This Is a cat
[string]$a
# This-Is-a-cat
$ofs = '-'
[string]$a
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C# - Multiple generic types in one list
...above examples. Accessing those through object would require a cumbersome cast.
– Buzz
Mar 30 '16 at 16:10
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How to refresh Android listview?
...stView#getAdapter()}
// method instead. However you would have to cast that adapter
// to your own instance every time
}
/**
* helper to show what happens when all data is new
*/
private void reloadAllData(){
// get new modified random data
Li...
What is a bus error?
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In my case, a method static_casted a void * parameter to an object that stores a callback (one attribute points to the object and the other to the method). Then the callback is called. However, what was passed as void * was something completely differen...
Should I always return IEnumerable instead of IList?
...y changed" - Even if you return IEnumerable<T>, couldn't they simply cast it back to a List<T> and change it?
– Kobi
Jul 2 '09 at 5:56
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Value Change Listener to JTextField
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good format for the warning/type cast. Same pattern will be useful for handling double amounts (sales figures/prices entered or displayed)
– Max West
Oct 13 '14 at 14:31
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Can't operator == be applied to generic types in C#?
...gt;.Default.Equals(x, y);
}
Aside from anything else, this avoids boxing/casting.
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