大约有 30,000 项符合查询结果（耗时：0.0445秒） [XML]
When should null values of Boolean be used?
... nullable boolean column in a database, for example). The null value might mean "we don't know if it's true or false" in this context.
each time a method needs an Object as argument, and you need to pass a boolean value. For example, when using reflection or methods like MessageFormat.format().
...
Can I Set “android:layout_below” at Runtime Programmatically?
...when creating a RelativeLayout at runtime to set the equivalent of android:layout_below programmatically?
4 Answers
...
How to skip “Loose Object” popup when running 'git gui'
...
@sashoalm: Maybe this is what you mean, but the "1000" of after 1000 refers to the number of milliseconds to wait until the dialog is shown. By increasing it to "10000", the dialog will still appear, but it will take 10 seconds for it to do so instead.
...
How do multiple clients connect simultaneously to one port, say 80, on a server? [duplicate]
...s to many readers.
Example 1: Two clients connecting to same server port means: socket1 {SRC-A, 100, DEST-X,80, TCP} and socket2{SRC-B, 100, DEST-X,80, TCP}. This means host A connects to server X's port 80 and another host B also connects to same server X to the same port 80. Now, how the server ...
How to delete a record in Django models?
...re are a couple of ways:
To delete it directly:
SomeModel.objects.filter(id=id).delete()
To delete it from an instance:
instance = SomeModel.objects.get(id=id)
instance.delete()
share
|
improv...
Getting “Skipping JaCoCo execution due to missing execution data file” upon executing JaCoCo
...s to
use syntax for late property evaluation:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<configuration>
<argLine>@{argLine} -your -extra -arguments</argLine>
</configuration>...
What's the difference between --general-numeric-sort and --numeric-sort options in gnu sort
... end but before digits.
While INF move to the last after digits because it means
infinity.
The NAN, INF, and -INF are case insensitive.
The lines always ignore whitespace from either side of NAN, INF, -INF (regardless of LC_CTYPE). Other alphabetic may ignore whitespace from either side depends on ...
Eclipse jump to closing brace
...t up to matching brace? Visual Studio does this using Ctrl+Shift+] (Ctrl+] means match brace; Shift means select; so Ctrl+Shift+] means select to matching brace... )
– Agnel Kurian
Oct 23 '11 at 18:34
...
In C#, What is a monad?
..." to combine two computations together is ;:
a; b
When you say this you mean "first do a, then do b". The result a; b is basically again a computation that can be combined together with more stuff.
This is a simple monad, it is a way of combing small computations to bigger ones. The ; says "do th...
twitter bootstrap typeahead ajax example
...hat isnt just a string array? i need to so a value to the user and use an id to do further processing. Is that possible without pickingup a custom fork?
– Anton
Sep 9 '12 at 23:35
...