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Regex expressions in Java, \\s vs. \\s+
...nts the regex match from failing. from http://www.coderanch.com/t/570917/java/java/regex-difference
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Calling a Java method with no name
...answer. Find out more about initialization block at http://docs.oracle.com/javase/tutorial/java/javaOO/initial.html
– Stanley
Dec 4 '12 at 9:01
6
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Why does the JVM still not support tail-call optimization?
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Diagnosing Java Code: Improving the Performance of Your Java Code (alt) explains why the JVM does not support tail-call optimization.
But although it is well known how to automatically transform a tail-recursive function into a sim...
Debug a java application without starting the JVM with debug arguments
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On Java 11 jsadebugd was replaced by jhsdb debugd. So that becomes jhsdb debugd --pid <pid>. See slides of a talk presenting jhsdb and the docs for jhsdb
– Delthas
May 1 at 4:07
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When to use LinkedList over ArrayList in Java?
...ng a position in the list takes time proportional to the size of the list. Javadoc says "operations that index into the list will traverse the list from the beginning or the end, whichever is closer", so those methods are O(n) (n/4 steps) on average, though O(1) for index = 0.
ArrayList<E>, o...
Apache Tomcat Not Showing in Eclipse Server Runtime Environments
...epler - http://download.ecliplse.org/releases/kepler
Expand "Web, XML, and Java EE Development"
Check JST Server Adapters (version 3.2.2)
After that I could define new Server Runtime Environments.
EDIT: With Eclipse 3.7 Indigo Classic, Eclipse Kepler and Luna, the steps are the same (with appropr...
Why does InetAddress.isReachable return false, when I can ping the IP address?
...
Here are other, similar questions :
Detect internet Connection using Java
How do I test the availability of the internet in Java?
And even a reported bug on this same matter :
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4921816
Part 1 : A reproducible example of the problem
Note t...
Maven dependency for Servlet 3.0 API?
...but never mind...
Brabster separate dependencies have been replaced by Java EE 6 Profiles. Is there a source that confirms this assumption?
The maven repository from Java.net indeed offers the following artifact for the WebProfile:
<repositories>
<repository>
<id>java....
Java ResultSet how to check if there are any results
... "forward only".
Compare the two throw sections:
http://docs.oracle.com/javase/7/docs/api/java/sql/ResultSet.html#isBeforeFirst()
http://docs.oracle.com/javase/7/docs/api/java/sql/ResultSet.html#first()
Okay, basically this means that you should use "isBeforeFirst" as long as you have a "forward...
Ant: How to execute a command for each file in directory?
...t dir="${server.src}" casesensitive="yes">
<include name="**/*.java"/>
<exclude name="**/*Test*"/>
</fileset>
</foreach>
</target>
<target name="bar">
<echo message="${theFile}"/>
</target>
This will antcall the target "bar" w...