Hi! My search engine uses the following function to calculate relevancy. private static int calculateScore(String result, String searchStr, int modifier) { String[] resultWords = result.split(" "); String[] searchWords = searchStr.split(" "); int score = 0; for (String searchWord : searchWords) { for (Strin...
Hi, I have a question and wonder if there is anyone came across the same situation as I did. I upgrade java version from 1.4 to 1.6, the java6 includes soap package itself, which means the axis soap libs i used previously will not be invoked. for example, javax.xml.soap.SOAPMessage. Is there anyway that I can explicitly force the a...
I'm using JPA and I am using second-level cache for all the reference entities. Everything's working well, I can get the entities from second-level cache is they were already been selected before. Now, I have two applications, they both use the same database (so they both use the same table, values, etc). 1.The read-only application ju...
In C++, I understand that it is possible to create a Singleton base class using templates. It is described in the book, Modern C++ Design, by Andrei Alexandrescu. Can something like this be achieved in Java? ...
Hello, I'm trying to insert a single bit into an array of bytes, which would shift all the bits in the byte array to the left. Say I have a Java byte array as follows: byte[] byteArray = new byte[2]; byteArray[0] = 0x11 byteArray[1] = 0x00 In binary, this byte array represented as: 0001 0001 0000 0000 Now I want to insert a zero ...
I need to connect Apache Axis 1.4 to a Webservice that uses NTLM authentication to restrict access to its operations. I'm expecting to use Samba Jcifs to handle the NTLM handshake. I found http://hc.apache.org/httpcomponents-client/ntlm.html which gives me fantastic directions for how to wire up HttpClient 4.0 with jcifs. Trouble is...
Can anyone tell me, or send me to a page, that can tell me what version of Java that a Mac OS X supports out of the box? I know for instance 10.5 comes with Java 1.5 installed by default. what about 10.4? 10.3? 10.2? 10.1? My app needs to be cross platform and I need to figure out what Java version to use to build my Java code. This wo...
A colleague came across some code that looked like this and couldn't understand how it could ever compile: class FooClass { public static void bar(String arg) { System.out.println("arg = " + arg); http://www.google.com System.out.println("Done!"); } } Basically, there was a random URL pasted in the middle of a metho...
I'm developing in Java and using JUnit to test some of my methods. Some of my methods send emails. The emails are actually sent by a separate thread that is spawned. The problem is that whenever I test these methods everything goes fine except that the emails are not actually sent. I've followed the execution through the whole stack and ...
Hi all How can I select a tab as if it was clicked by clicking on a button? I have googled and looked at all the actions but there are just just so many... :( Anyone know off hand? Thanks in advance! ...
If I say x.hello() In Java, object x is "calling" the method it contains. In Ruby, object x is "receiving" the method it contains. Is this just different terminology for expressing the same idea or is there a fundamental difference in ideology here? Coming from Java I find Ruby's "receiver" idea quite baffling. Perhaps someone coul...
Introducing some of the goodness of collection operations to our codebase without adding a new external library dependency, we are adding these methods to our utility package. static public List<T> filter(List<T> source, Predicate<T> filter); static <Y,T> public List<Y> transform(List<T> source, Mutator<Y,T> filter); static public boole...
Hello, I use a JTable which has its own cell renderer and cell editor. Say, this table contains 2 columns and x rows: The first column contains a boolean value, its own cell rendering and cell editor (a radiobutton) The second column contains a string value, its own cell renderer: it makes it bold when the first column of the current...
I would like to be able to convert a String (with words/letters) to other forms, like binary. How would I go about doing this. I am coding in BLUEJ (Java). Thanks ...
Given the following: @Entity public class Parent implements Serializable { @Id private Long id; // mapped ManyToOne below... private List<Child> children = new ArrayList<Child>(); ... } Is it a bad practice to have Parent.equals() and Parent.hashCode() use only id? I understand that Child.equals() and Child.hashCode() shou...
Hi, I have huge class that I need to build stub for. To give you picture it is Messages class of the GWT. Often this is class with dozens of methods that return String. With JMock I can do stubbing, but I will end with allowing each method... This is not something that I would like to see. Is there something that will automatically b...
I am at the end of my first year doing computer science and want to mess around with something basic. I want to use threads so I can learn. What are some good examples to learn from? ...
I'm trying to find a way to communicate between two NAT-ed nodes using Java. My requirements pretty much align with the ICE-specification; i.e. I want to try STUN first and then fall back to relaying the data when nothing else works. I need some kind of streaming protocol, so either TCP must be supported or the library should provide som...
I'm trying to get log4j application (webapp) logging working in a Tomcat 6 app. I have log4j-1.2.15.jar in my WEB-INF directory, log4j.dtd and log4j.xml in WEB-INF/classes. My log4j.xml looks like: <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE log4j:configuration SYSTEM "log4j.dtd" > <log4j:configuration> <appender name="massAppende...
Is it possible to call the JVM's built-in native code, i.e. the code that various class in java.lang and java.io call? In other words, can you bypass the built-in java API to access various system-level calls such as file-system access? I know I could do this by building my own native code library and calling that via JNI, but it would b...