大约有 47,000 项符合查询结果（耗时：0.0476秒） [XML]
What is the difference between Builder Design pattern and Factory Design pattern?
...
With design patterns, there usually is no "more advantageous" solution that works for all cases. It depends on what you need to implement.
From Wikipedia:
Builder focuses on constructing a
complex object step by step. Abstract
Factory emphasizes a family ...
It is more efficient to use if-return-return or if-else-return?
...unction, the two forms are equivalent (although the second one is arguably more readable than the first).
The efficiency of both forms is comparable, the underlying machine code has to perform a jump if the if condition is false anyway.
Note that Python supports a syntax that allows you to use onl...
Is the Scala 2.8 collections library a case of “the longest suicide note in history”? [closed]
... map in BitSet she got:
map(f: Int => Int): BitSet (click here for more general type)
The docs would not lie in that case, because from a user perspective indeed map has the type (Int => Int) => BitSet. But map also has a more general type which can be inspected by clicking on anothe...
How to do a FULL OUTER JOIN in MySQL?
...ery, and then use a UNION ALL set operator to combine the two sets. In the more general case, where a FULL OUTER JOIN would return duplicate rows, we can do this:
SELECT * FROM t1
LEFT JOIN t2 ON t1.id = t2.id
UNION ALL
SELECT * FROM t1
RIGHT JOIN t2 ON t1.id = t2.id
WHERE t1.id IS NULL
...
Group vs role (Any real difference?)
...up and role? I've been trying to figure this out for some time now and the more information I read, the more I get the sense that this is brought up just to confuse people and there is no real difference. Both can do the other's job. I've always used a group to manage users and their access rights.
...
Table Naming Dilemma: Singular vs. Plural Names [closed]
...sers" (where "Widget" is the name of your application or website) would be more appropriate.
share
|
improve this answer
|
follow
|
...
Text editor to open big (giant, huge, large) text files [closed]
...hting, line numbers, huge files, regex, multiple files and views, and much more. The free version can not: process regex, filter files, synchronize timestamps, and save changed files.
Free editors:
Your regular editor or IDE. Modern editors can handle surprisingly large files. In particular, Vim...
Java 8 Iterable.forEach() vs foreach loop
...ode.
If you do need parallelism, it is probably much faster and not much more difficult to use an ExecutorService. Streams are both automagical (read: don't know much about your problem) and use a specialized (read: inefficient for the general case) parallelization strategy (fork-join recursive de...
MIT vs GPL license [closed]
...encrypted, as long as it carries the MIT license notice.
is the GPL is more restrictive than the MIT license?
Yes, very much so.
share
answered Aug 1...
Why does Maven have such a bad rep? [closed]
...n't easily use maven as a drop-in replacement for ant, and gradually adopt more advanced features.
According to the documentation, Maven is transcendental happiness that makes all your wildest dreams come true. You just have to meditate on the manual for 10 years before you become enlightened.
Mave...