大约有 15,000 项符合查询结果（耗时：0.0394秒） [XML]
Is String.Format as efficient as StringBuilder
...d when a user clicks a button now and again. Unless you're doing some huge batch processing job I'd stick with String.Format, it aids code readability. If you suspect a perf bottleneck then stick a profiler on your code and see where it really is.
...
Persistence unit as RESOURCE_LOCAL or JTA?
...ral purpose transaction manager and can enlist other resources such as JMS queues in transaction. Typically Java EE containers employ a JTA transaction manager for EJBs, JPA entities, etc.
share
|
...
What's is the difference between train, validation and test set, in neural networks?
...r surface will be different for different sets of data from your data set (batch learning). Therefore if you find a very good local minima for your test set data, that may not be a very good point, and may be a very bad point in the surface generated by some other set of data for the same problem. T...
Must qualify the allocation with an enclosing instance of type GeoLocation
...ExecutorService service = Executors.newFixedThreadPool(size);
// queue some tasks
for(int i = 0; i < 3 * size; i++) {
service.submit(new ThreadTask(i));
}
// wait for termination
service.shutdown();
service.awaitTermination(Lo...
Recursive Lock (Mutex) vs Non-Recursive Lock (Mutex)
...ormal binary give would only release the thread at the head of the waiting queue (assuming there is one blocked).
– Tall Jeff
Jul 2 '19 at 8:34
...
How do I fix a merge conflict due to removal of a file in a branch?
...
@ideasman42 I have updated my answer to show a batch-delete solution.
– void.pointer
Mar 26 '19 at 18:53
1
...
What are good examples of genetic algorithms/genetic programming solutions? [closed]
...enerations of this, I ended up with a population of genes that could turn $5000 into an average of about $10000 with no chance of death/brokeness (on the historical data, of course).
Unfortunately, I never got the chance to use this system live, since my boss lost close to $100,000 in less than 3 m...
Check if pull needed in Git
...
How can I use this in a (Ubuntu) batch file, so that I can run other commands just in the case this command shows that a pull is needed?
– Ulysses Alves
Jun 8 '16 at 13:40
...
When is it practical to use Depth-First Search (DFS) vs Breadth-First Search (BFS)? [closed]
... like. This is something like Level Order Tree Traversal where we will use QUEUE with ITERATIVE approach (Mostly RECURSION will end up with DFS). The numbers represent the order in which the nodes are accessed in a BFS:
In a depth first search, you start at the root, and follow one of the branche...
Android - how do I investigate an ANR?
...ad seems to be doing fine, there is no problem. It is idling in the MessageQueue, waiting for another message to come in. In your case the ANR was likely a longer operation, rather than something that blocked the thread permanently, so the event thread recovered after the operation finished, and you...