Java Intermediate

• Java Intermediate Questions

• • How to delete multiple directories using Ant

    I want to delete all directories under a root directory that have the word "tmp" in their names. I&#...

    By moitinh

  • JarSearcher package

    Hi all,Please see my following post ,http://saloon.javaranch.com/cgi-bin/ubb/ultimatebb.cgi?ubb=get_...

    By maulinvasavada

  • xdoclet not generating struts-config.xml

    Hi,I am trying to generate my struts-config.xml using ANT and xdoclet. It seems that if i subclass m...

    By dschahal

  • windows authentication help

    Hi All,Hope every one is doing goodI need a Java interface for single sign-on. This module should ta...

    By chennaraomarvatu

  • Stack Dump of ALL threads

    Hi,In JDK 1.4, how can I get the stack dump of ALL the threads in JVM.I tried using "ctrl + Break". ...

    By arnavvelimala

• • An Ant Rant

    It's Friday afternoon, and I have spent most of the week trying to adapt my perfectly good WSAD ...

    By dktaylor, 9 Comments

  • jdk 1.4

    I downloaded and installed Sun's jdk 1.4, but when checking the java version it still says 1.3.0...

    By jerrycallo, 2 Comments

  • creating applications

    hi,am not sure where this should go but after writting a program how dou get to run the apllication ...

    By kellydevon, 3 Comments

  • Plugin autoloading

    Does anyone know a simple way to search all the classes, in the classpath, that implements an interf...

    By juanfcos, 8 Comments

  • java in the sharp zaurus PDA

    Hi all,I'm not sure if this is the right place to post this topic, but I'll try it anyway.I&...

    By alessandrobrawerman, 5 Comments

• Java Intermediate: is the Category's subject.It's has 22,871 questions,this is No.1,144 pages.
• I have some vague concept about Cloneable....
• class A13 implements Cloneable { void disp(){ System.out.println("Cloned method"); } }public class clone{ public static void main (String[] args) { A13 a = new A13(); A13 b = (A13) a.clone(); b.disp(); }}Error clone() has protected access in java.lang.ObjectTo use a clone() on an object, clas...
• waezali, Sun, 14 Mar 2010 10:32:00 GMT, 796 bytes, 12 Answer
• Custom Event Listener
• I am using bean to develop application.for the sake i have to develop custom event,so can write a custom event ...
• alexiordache, Sun, 14 Mar 2010 03:11:00 GMT, 111 bytes, 1 Answer
• [Maven] Nice HTML test-reports
• Hi again,I need to generate decent test-reports (HTML) using Maven, not those uglies XML's. I used to do it using Ant, but I wonder if already exists the same feature in Maven. I know I can use maven site:generate, but it produces a lot of other things, and I just want the test reports Any i...
• tiagofernandez, Sat, 13 Mar 2010 21:34:00 GMT, 524 bytes, 2 Answer
• regex doubt
• i want to check if a text field has something like a >=2000 year:2004 or2004/2005, for example. (both are aceptable)i'm using this code:code: public boolean validaEpoca(String s) { String sepoca = s; String regex = "(20)\\d\\d|(20)\\d\\d/(20)\\d\\d"; if (sepoca.matches(regex)) { return tr...
• miguellisboa, Sat, 13 Mar 2010 20:48:00 GMT, 612 bytes, 5 Answer
• Date conversion - Very urgent
• Hi,I have a date in the format "yyyy-mm-dd hh:mm:ss.s". This is a timestamp date formatI need to convert this date to the format "dd-mm-yyyy hhmm".Can somebody help me out on this? This is very urgent.Thanks in advance.Regards,Sriram....
• sriramsharma, Sat, 13 Mar 2010 04:56:00 GMT, 270 bytes, 4 Answer
• Question related to jdk1.5
• Hello Everybody, I want to ask two very simple questions: 1) Related to jdk1.5 Those who don't know about this: I can write a code like this import static System.out; _________________ ________________ //code continues println("Hello World");// no need to write System.out ________________ __...
• shrinivasmujumdar, Sat, 13 Mar 2010 00:34:00 GMT, 1,036 bytes, 1 Answer
• J2EE technologies
• Can someone plz tell me which all technologies does J2ee include....
• angelalewis, Fri, 12 Mar 2010 23:03:00 GMT, 65 bytes, 1 Answer
• Java data validation
• Hi,I need to parse a fixed length text file and then do the data validation on it. File can contain 100+ records.Data validation for each record will typically have:1) Numeric check, min/max value check, decimal precision check etc.2) Date check3) currency code is same in all the amount fields i...
• karanjain, Fri, 12 Mar 2010 22:33:00 GMT, 1,035 bytes, 1 Answer
• code quick quiz
• hey i'm a student and I have a quiz today and I nee some help, I don't know anything about Java at all, I'm a beginner. I need to write a program that print all even numbers 0-10, using a for loop and only one if statement using jdk1.4.2(J2SE)and Netbeans, the IDE, please help and if...
• robertrowe, Fri, 12 Mar 2010 18:02:00 GMT, 368 bytes, 1 Answer
• How to export ANT properties to env?
• I'm using the rpm optional task in my build.xml file. I'm using a spec file for building my RPM that relies on certain environment variables.There must be a simple way to do this, but I haven't found it yet: how do I make sure that the ANT property myANTProp is in the environment for...
• hernansilberman, Fri, 12 Mar 2010 16:52:00 GMT, 570 bytes, 3 Answer
• What is better performance HashMap or a TreeSet
• What is more effeciant A HashMap or a TreeSet in terms of performace.A HasMap is easier for me to implement by calling the key to get the value,but would performace be a factor.A treeSet will return the data in the order I added it from the record set.But is more difficult to manipulate.My probl...
• rastasbiggs, Fri, 12 Mar 2010 16:09:00 GMT, 451 bytes, 2 Answer
• How to Retrieve values from Hashtable in the order in which it has been entered?
• Hi!, How do I Retrieve values from Hashtable in the order in which it has been entered? My code reads as such...public static void main(String args[]) { Hashtable hs = new Hashtable(); hs.put("1716","S M Gupta"); hs.put("2263","Sujit Sinha"); hs.put("1299","Boss"); hs.put("2441","Praveen Kumar")...
• kumarnavin, Fri, 12 Mar 2010 15:44:00 GMT, 1,213 bytes, 1 Answer
• [HELP] text mining in java servlet
• hi all,i just want to ask how can i do text mining from a .txt file?i am using eclipse with WTP plugins to create a dinamyc web page and using Java as a servlet.I am a noob in using these tools. I really appreciate some helps. Thank you in advance.Best Regards,Marcories...
• marcories, Fri, 12 Mar 2010 15:39:00 GMT, 298 bytes, 1 Answer
• Integrating JDOM with Eclipse
• hi I am using eclipse IDE to develop a project. I need to integrate JDOM xml libraries wit heclipse but i am unsuccessful with my attempts till now. Will anyone please help?TIA...
• ashishchopra, Fri, 12 Mar 2010 15:27:00 GMT, 188 bytes, 1 Answer
• Why is Ant so good?
• Hi, I hope that I do not sound too ignorant with my question, but I am wondering why Ant is so good. What can I do with it that I can't do with just a simple batch file? I can see the benefit if I wanted to build a project on different platforms, but even in that case I could just have 2 bui...
• barryandrews, Fri, 12 Mar 2010 14:14:00 GMT, 397 bytes, 17 Answer
• off-line searchengine with multiple values
• Somebody asked me to create an off-line database with a searchengine. It needs multiple search values. For example: -color:green-tail: yes-weight: 2 pounds--3 matches: lizard, tailfrog, babydragonsee? This is the idea. Should i use java for such an apllication?I just need help.Greetinx matz...
• matzeflapse, Fri, 12 Mar 2010 14:13:00 GMT, 326 bytes, 2 Answer
• Thread.sleep or javax.swing.Timer
• Hi, I have an application, where I need to apply a pause between repaints.Currently I'm using Thead.sleep(..) before I do a repaint, but I noticed with another program of mine that the gui buttons become non-responsive while using sleep, so on that program I switched to javax.swing.Timer, an...
• colinshuker, Fri, 12 Mar 2010 14:13:00 GMT, 723 bytes, 3 Answer
• Javap
• Hello All,I was trying to run the command javap and I always get class not found error.Here is my java code:[code]public class StringLiterals{ public static void main(String[] args){ /*String one = "Test"; String two = "Test"; String three = "T" + "e" + "s" + "t"; String four = new String("Test"...
• spenumudi, Fri, 12 Mar 2010 14:13:00 GMT, 797 bytes, 3 Answer
• Collections
• Hello, I have a small doubt. Suppose i have an ArrayList object which holds 10 objects of XYZ class. If i null out the ArrayList object, will it null of the 10 XYZ references.?Thanx in advance....
• kanudialani, Fri, 12 Mar 2010 14:13:00 GMT, 205 bytes, 9 Answer
• Order in Collection and ArrayList
• I have given two sample codes below. Please advise is there any difference in maintaining the order in these two.Sample1Collection a = method();private ArrayList method() {ArrayList a = new ArrayList();.....return a}Sample 2ArrayList a = method();Thanks...
• hamlinstephen, Wed, 10 Mar 2010 19:11:00 GMT, 325 bytes, 3 Answer
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