大约有 45,000 项符合查询结果（耗时：0.0576秒） [XML]
What's the reason I can't create generic array types in Java?
...;
Object[] oa = bsa;
oa[0] = new Box<Integer>(3); // error not caught by array store check
String s = bsa[0].x; // BOOM!
}
}
We had proposed to resolve this
problem using statically safe arrays
(aka Variance) bute that was rejected
for Tiger.
-- gaf...
Passing arguments to C# generic new() of templated type
...ll, and somebody might try to "clean up" and delete it (to cause a runtime error at some random time in the future). You may want to consider adding a dummy function where you use this constructor just so you get a compile error if you try to delete it.
– jrh
O...
What is a race condition?
... What does the other thread do when it encounters the lock? Does it wait? Error?
– Brian Ortiz
Oct 19 '09 at 1:58
182
...
What is the difference between required and ng-required?
... Its worth mentioning that ng-required displays a default tooltip style error message saying 'this field is required', which is not always desired. I'm looking for a way to turn it off
– Adam Spence
Mar 13 '14 at 12:12
...
When should we use intern method of String on String literals
...ve pointed out, doing this harbors a great risk of introducing programming errors, so this should be done only as a desparate measure of last resort.
The downside is that interning a String takes more time than simply throwing it on the heap, and that the space for interned Strings may be limited, ...
Why is a ConcurrentModificationException thrown and how to debug it
...e faulty for loop will usually be in the stack-trace, so tracking down the error is usually easy.
A trickier case is when your code passes around references to the Collection object. Note that unmodifiable views of collections (such as produced by Collections.unmodifiableList()) retain a reference t...
?: operator (the 'Elvis operator') in PHP
...the variable in the parenthesis exists though, or you're going to raise an error. PHP will not just assume it having a value of null or anything. Just sayin'
– DanMan
Aug 13 '15 at 11:10
...
How to create a temporary directory?
...aybe the /tmp filesystem is full or has been remounted read only due to an error?); then cd $(mktemp -d) will evaluate to cd which changes to the user's home directory, which would subsequently be deleted.
– Jules
May 8 '17 at 7:11
...
Selecting with complex criteria from pandas.DataFrame
...
Don't forget the parentheses - you'll get weird errors like {TypeError}cannot compare a dtyped [int64] array with a scalar of type [bool]
– Mr_and_Mrs_D
Feb 9 '18 at 0:20
...
Why does the C++ map type argument require an empty constructor when using []?
... contain such an object' would be evaluated at runtime. Why a compile time error?
– Gaurav Singh
May 29 '19 at 9:57
|
show 1 more comment
...