大约有 40,000 项符合查询结果（耗时：0.0809秒） [XML]
Is there a unique Android device ID?
...Also read Best practices for unique identifiers: https://developer.android.com/training/articles/user-data-ids
share
|
improve this answer
|
follow
|
...
What's wrong with overridable method calls in constructors?
...@Override is invoked, the state of the object may be inconsistent and/or incomplete.
A quote from Effective Java 2nd Edition, Item 17: Design and document for inheritance, or else prohibit it:
There are a few more restrictions that a class must obey to allow inheritance. Constructors must not i...
assertEquals vs. assertEqual in python
...point, failUnlessEqual is explicitly deprecated. assertEquals carries this comment :-)
# Synonyms for assertion methods
# The plurals are undocumented. Keep them that way to discourage use.
# Do not add more. Do not remove.
# Going through a deprecation cycle on these would anno...
Can I Set “android:layout_below” at Runtime Programmatically?
...
add a comment
|
147
...
Getting result of dynamic SQL into a variable for sql-server
...
DECLARE @sqlCommand nvarchar(1000)
DECLARE @city varchar(75)
declare @counts int
SET @city = 'New York'
SET @sqlCommand = 'SELECT @cnt=COUNT(*) FROM customers WHERE City = @city'
EXECUTE sp_executesql @sqlCommand, N'@city nvarchar(75),@c...
What is the difference between a static and a non-static initialization code block
... a class which does not belong to any function. For example following code compiles:
8 Answers
...
Best way to list files in Java, sorted by Date Modified?
...tees about the order of the files returned. Therefore you need to write a Comparator that uses File.lastModified() and pass this, along with the array of files, to Arrays.sort().
share
|
improve th...
Is String.Contains() faster than String.IndexOf()?
...public bool Contains(string value)
{
return (this.IndexOf(value, StringComparison.Ordinal) >= 0);
}
Which calls CompareInfo.IndexOf, which ultimately uses a CLR implementation.
If you want to see how strings are compared in the CLR this will show you (look for CaseInsensitiveCompHelper).
...
How to define “type disjunction” (union types)?
... implicit parameter of type StringOrInt[T], and because Scala looks inside companion objects of a type to see if there are implicits there to make code asking for that type work.
share
|
improve thi...