大约有 27,000 项符合查询结果(耗时:0.0489秒) [XML]
Why is exception handling bad?
...ew throws an exception. In this example, the increment of m_NumberOfFrobs does not get rolled back. Thus, anyone using this instance of Frobber is going to have a possibly corrupted object.
This example may seem stupid (ok, I had to stretch myself a bit to construct one :-)), but, the takeaway is...
Use grep --exclude/--include syntax to not grep through certain files
...
--include doesn't seem to work after --exclude. I suppose it doesn't make sense to even try, except that I have an alias to grep with a long list of --exclude and --exclude-dir, which I use for searching code, ignoring libraries and sw...
How to make a new List in Java
...
Ints.asList does not create an immutable list, but a fixed-size list backed by given array of ints (i.e. it supports List.set(int, Object)). Second example of "Immutable List of Characters" isn't immutable either (I'd remove that line).
...
Do Google refresh tokens expire?
... for a year" part makes it not quite as clear as you suggest; but since it doesn't seem to cause problems in practice, I'm assuming the refresh token is evergreen.
– mahemoff
Mar 16 '13 at 8:10
...
How do I do an OR filter in a Django query?
...e='mark')
query.add(Q(email='mark@test.com'), Q.OR)
query.add(Q(last_name='doe'), Q.AND)
queryset = User.objects.filter(query)
This ends up with a query like :
(first_name = 'mark' or email = 'mark@test.com') and last_name = 'doe'
This way there is no need to deal with or operators, reduce's e...
Java: notify() vs. notifyAll() all over again
... if you notify just one thread but multiple are waiting on an object, how does the VM determine which one to notify?
– amphibient
Jul 22 '13 at 5:02
6
...
Show compose SMS view in Android
...
I just use new Intent() and that does it.
– Osmium USA
Jun 13 '13 at 17:34
h...
How do I join two lists in Java?
...t expect this to remove duplicates or something, but it appears the method does not do that.
– Quantum7
Dec 17 '12 at 23:52
...
How do I disable orientation change on Android?
...ys
handles this configuration change itself (this configuration change
does not restart your activity, even when running on an Android 3.2 or
higher device).
share
|
improve this answer
...
Using Pairs or 2-tuples in Java [duplicate]
...
This doesn't work. When used in Hashtable or HashMap (as requested) it fails since 2 different tuples with the same elements will provide different hash codes. equals() and hashCode() must be overriden.
– Yag...
