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Why are all fields in an interface implicitly static and final?
... the instance state is not inferred by the interface.
BTW : A constant in Java is defined by a static final field (and by convention the name uses UPPER_CASE_AND_UNDERSCORES).
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Must qualify the allocation with an enclosing instance of type GeoLocation
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Do this Structure:
FILE GeoLocation.java
public class GeoLocation {
public static void main(String[] args) throws InterruptedException {
int size = 10;
// create thread pool with given size
ExecutorService service = Executors.newF...
When should I choose Vector in Scala?
...mplemented with a singly-linked list. Vector is implemented something like Java's ArrayList.
– Josiah Yoder
Aug 12 '15 at 14:43
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Recursive Lock (Mutex) vs Non-Recursive Lock (Mutex)
... it is only because you have not had to debug a problem like this before. Java has non-reentrant locks these days in java.util.concurrent.locks, by the way.
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Developing cross platform mobile application [closed]
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As far as I know most of those devices are able to run this:
Java ME - the Most Ubiquitous Application Platform for Mobile Devices
I think this can serve both as good and bad example.
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Java JTable setting Column Width
...inWidth(400) on the last column instead of setPreferredWidth(400)?
In the JavaDoc for JTable, read the docs for doLayout() very carefully. Here are some choice bits:
When the method is called as a result of the resizing of an enclosing window, the
resizingColumn is null. This means that resi...
How do you configure logging in Hibernate 4 to use SLF4J
...ook to https://github.com/jboss-logging/jboss-logging/blob/master/src/main/java/org/jboss/logging/LoggerProviders.java:
static final String LOGGING_PROVIDER_KEY = "org.jboss.logging.provider";
private static LoggerProvider findProvider() {
// Since the impl classes refer to the back-end framew...
Seeking clarification on apparent contradictions regarding weakly typed languages
...ut "02" lt 10, while "02" == 2). (Mind you, certain other languages, like JavaScript, try to accommodate Perl-like weak typing while also doing operator overloading. This often leads to ugliness, like the loss of associativity for +.)
(The fly in the ointment here is that, for historical reasons,...
Mockito + PowerMock LinkageError while mocking system class
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Try adding this annotation to your Test class:
@PowerMockIgnore("javax.management.*")
Worked for me.
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Best way of invoking getter by reflection
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I think this should point you towards the right direction:
import java.beans.*
for (PropertyDescriptor pd : Introspector.getBeanInfo(Foo.class).getPropertyDescriptors()) {
if (pd.getReadMethod() != null && !"class".equals(pd.getName()))
System.out.println(pd.getReadMethod().i...