大约有 16,000 项符合查询结果（耗时：0.0215秒） [XML]
When do I need to use AtomicBoolean in Java?
...
When multiple threads need to check and change the boolean. For example:
if (!initialized) {
initialize();
initialized = true;
}
This is not thread-safe. You can fix it by using AtomicBoolean:
if (atomicInitialized.compareAndSet(fa...
Example of Named Pipes
...sing System.IO.Pipes;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
StartServer();
Task.Delay(1000).Wait();
//Client
var ...
Why are mutable structs “evil”?
Following the discussions here on SO I already read several times the remark that mutable structs are “evil” (like in the answer to this question ).
...
How do I read configuration settings from Symfony2 config.yml?
...APPROACH: Separated config block, injecting the config into a service
For readers looking for something similar but for getting the config from a service, there is even a nicer way that never clutters the "paramaters" common space and does even not need the container to be passed to the service (pa...
Why array implements IList?
...nt collections with indexers?" And to that I have no answer.
There are no readonly interfaces for collections either. And I'm missing those even more than a constant sized with indexers interface.
IMO there should be several more (generic) collection interfaces depending on the features of a colle...
“’” showing on page instead of “ ' ”
... â, € and ™.
and how can I fix it?
Use UTF-8 instead of CP-1252 to read, write, store, and display the characters.
I have the Content-Type set to UTF-8 in both my <head> tag and my HTTP headers:
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
This only i...
What's the difference between a Future and a Promise?
...adoc extract needs a serious workover by a decent tech author. On my fifth read-through I can just start to appreciate what it's trying to say ... and I come to this with an understanding of futures and promises already in place!
– Beetroot-Beetroot
Jan 28 '13 ...
Should it be “Arrange-Assert-Act-Assert”?
...sanity check, to ensure that the second assertion is really meaningful.
Read by itself, assertTrue(range.includes(7)); is saying: "assert that the modified range includes 7". Read in the context of the first assertion, it's saying: "assert that invoking encompass() causes it to include 7. And s...
scanf() leaves the new line char in the buffer
...hitespace either. The literal order has to match the next character to be read.
So you probably want " order = %d" there if you want to skip a newline from the previous line but still require a literal match on a fixed string, like this question.
...
How can I get a java.io.InputStream from a java.lang.String?
...
Update: This answer is precisely what the OP doesn't want. Please read the other answers.
For those cases when we don't care about the data being re-materialized in memory, please use:
new ByteArrayInputStream(str.getBytes("UTF-8"))
...