大约有 7,700 项符合查询结果（耗时：0.0259秒） [XML]
Several ports (8005, 8080, 8009) required by Tomcat Server at localhost are already in use
...ipt. If in vain, close Eclipse and then open the task manager and kill all java and/or javaw processes.
Or if you actually installed it as a Windows service for some reason (this is namely intented for production and is unhelpful when you're just developing), open the services manager (Start > ...
'POCO' definition
...said it - Plain Old CLR Object (as opposed to the earlier POJO - Plain Old Java Object)
The POJO one came out of EJB, which required you to inherit from a specific parent class for things like value objects (what you get back from a query in an ORM or similar), so if you ever wanted to move from EJ...
How do I get the file extension of a file in Java?
...ly? It is a great library, full of utilities. Most of them will be part of Java8, like the great Guava Function.
– JeanValjean
Jun 12 '13 at 9:15
...
What is the “continue” keyword and how does it work in Java?
...
"continue" in Java means go to end of the current loop,
means: if the compiler sees continue in a loop it will go to the next iteration
Example: This is a code to print the odd numbers from 1 to 10
the compiler will ignore the print co...
Java Replacing multiple different substring in a string at once (or in the most efficient way)
... or you are operating on many strings, then it could be worthwhile using a java.util.regex.Matcher (this requires time up-front to compile, so it won't be efficient if your input is very small or your search pattern changes frequently).
Below is a full example, based on a list of tokens taken from ...
Best practices/performance: mixing StringBuilder.append with String.concat
...
Effective Java 2-nd edition: Using the string concatenation operator repeatedly to concatenate n strings requires time quadratic in n. So is it still relevant?
– gkiko
Mar 17 '15 at 8:49
...
Common elements in two lists
...reinvent the wheel? Use Commons Collections:
CollectionUtils.intersection(java.util.Collection a, java.util.Collection b)
share
|
improve this answer
|
follow
...
How to lazy load images in ListView in Android
...anguage governing permissions and limitations
under the License.
*/
import java.io.IOException;
public class DrawableManager {
private final Map<String, Drawable> drawableMap;
public DrawableManager() {
drawableMap = new HashMap<String, Drawable>();
}
public Dr...
What in the world are Spring beans?
...nfiguration instead of having to 'bake in' the scope
of an object at the Java class level. Beans can be defined to be
deployed in one of a number of scopes
*IoC: Inversion of Control
share
|
i...
Is there an ExecutorService that uses the current thread?
...ou) implementation that only uses the current thread. Stealing this from "Java Concurrency in Practice" (essential reading).
public class CurrentThreadExecutor implements Executor {
public void execute(Runnable r) {
r.run();
}
}
ExecutorService is a more elaborate interface, but ...