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When and why would you seal a class?
...d be a conscious decision as well. (In C# this is a conscious decision; in Java it isn't.)
EDIT: Some relevant links:
Effective Java, 2nd Edition by Joshua Bloch. See item 17 (requires Safari subscription)
Effective Java Item 17: Design and document for inheritance or else prohibit it (discussion ...
Comparison of full text search engine - Lucene, Sphinx, Postgresql, MySQL?
...had used both in my project and i finally sticked to sphinx. Lucence is in java , and it takes a lot more CPU and RAM than Sphinx.
– Phyo Arkar Lwin
Jun 15 '11 at 5:33
25
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How do I make an http request using cookies on Android?
...//github.com/apache/httpcomponents-client/blob/master/httpclient5/src/test/java/org/apache/hc/client5/http/examples/ClientFormLogin.java
import java.util.ArrayList;
import java.util.List;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
i...
When does static class initialization happen?
...lass.forName(fqn)
1 - The final bullet point was present in the JLS for Java 6 through Java 8, but it was apparently a mistake in the specification. It was finally corrected in the Java 9 JLS: see source.
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What is Clojure useful for? [closed]
... I've used thus far academically and professionally - C, C++, Objective-C, Java, JavaScript, Python, Ruby.
Which isn't to say Clojure is perfect. But it seems to me that it's built on a better foundation than most of what's out there.
...
Negative weights using Dijkstra's Algorithm
... good reference from Algorithm (4th edition), which says (and contains the java implementation of version 2 & 3 I mentioned above):
Q. Does Dijkstra's algorithm work with negative weights?
A. Yes and no. There are two shortest paths algorithms known as Dijkstra's algorithm, depending on whether...
Eclipse HotKey: how to switch between tabs?
...e nonsense like that.
Matt Ball confirms:
oh wow, selecting "Editing Java Source" actually worked!
Now, unfortunately this means that I'm SOL if I nav into a non-Java file (JSP, XML, JS, etc.).
The fix for this is to "copy command" for this pair, and select all the "whens" that I want.
S...
Where to use EJB 3.1 and CDI?
I am making a Java EE based product in which I'm using GlassFish 3 and EJB 3.1.
2 Answers
...
Difference between validate(), revalidate() and invalidate() in Swing GUI
...d and performs layout of the container.
UPDATE:
Some code from Component.java
public void revalidate() {
revalidateSynchronously();
}
/**
* Revalidates the component synchronously.
*/
final void revalidateSynchronously() {
synchronized (getTreeLock()) {
invalidate();
C...
How do I convert a org.w3c.dom.Document object to a String?
I want to convert a org.w3c.dom.Document object to a String. I'm using Java 6 and am open to using any (completely free) technology that is up to the task. I tried the solution from this thread -- Is there a more elegant way to convert an XML Document to a String in Java than this code? , where t...