31,001 Topics
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| | Hi everybody, Can somebody show me a very comprehensive way of using struts2 iterator tags. I already have the action working but when i am about to list it in my JSP it doesnt display anything. And one more, is it better to use JSTL that stuts2 tags? Please enlighten.... … |
| | pls help me for closing an application remotely using java thanks an advance . |
| | Hi All, For my final assignment, I need to create a BookCatalogue and save the data to a file on the disk. I have created a Book class that get and inserts the fields: Book title, author and type. [CODE] public class Book { private String title; private String author; … |
| | I am trying to configure log4j for one of my web projects. For that I want to read the log4j.properties file. Below is the code [code] private URL url; private File file; file = new File(url.getPath()); DOMConfigurator.configure(url); [/code] Following is the error Exception in thread "Thread-1" java.lang.NullPointerException Then I try …  |
| | HI All, Another Question: I have created another program that queries the StockTracker database for all users and the stocks held by each user. The program compiles, but at run-time i get the error: [COLOR="Red"]"Exception in thread 'main' java.sql.SQLException: Column not found at sun.jdbc.odbc.JdbcOdbcResultSet.findColumn<JdbcOdbcResultSet.java:1833> at sun.jdbc.odbc.JdbcOdbcResultSet.getString<JdbcOdbcResultSet.java:395> at StockByUser.main<StockByUser.java:43>"[/COLOR] I am … |
| | Good afternoon, I am in the process of learning java and I am a little bit stock on a couple of issues. I am working with javamail version-1.4.2 and JavaBeans Activation Framework 1.0.2 release. The purpose of my code is to give me the ability to move e-mails from one … |
| | Sequencer sequencer = MidiSystem.getSequencer (); can any 1 tell ...What's going on in this code .... |
| | package gcd; import java.io.*; class gcd { public static void main (String args []) throws IOException { BufferedReader dataIn= new BufferedReader(new InputStreamReader(System.in)); String strEntry; String str_C; String ans; int a[] = new int[10000]; int n=0,i=0,j=0,c=0,max=0,min=0; long prod=0; strEntry = dataIn.readLine(); n = Integer.parseInt(strEntry); for(i=1;i<=n;i++) { str_C = dataIn.readLine(); c = …  |
| | Hi All, I have created a servlet HTMLBank.java which I need to display in my browser. I am using Tomcat as my server. I have saved the class for HTMLBank in: C:\Program Files\Apache Group\Tomcat 4.1\webapps\ROOT\WEB-INF\Classes\servlet But when i try to "run" my servlet in my browser, i get a message … |
| | After I've been running my program for a while, it freezes and gives me this error in the console: [COLOR="Red"]Exception in thread "Thread-4" java.lang.IllegalArgumentException: timeout value is negative at java.lang.Thread.sleep(Native Method)[/COLOR] It gives me a line to where the error occurs, which is the same line where it says "try": … |
| | hello friends , i m in b.tech (I T) .. ! presently i am learning j2EE in a private institution. According to their norms a mini projects should be submitted based on java or j2EE.so,any body help me |
| | I have a movie-player type application. You have a movie of JPanels that you can "play", that is you can have the frames change either automatically on a timer or by advancing a frame at a time manually. I've created 4 trivial frames (simple JPanels with different colors). It can … |
| | Hi, please can anybody help to open an exe file,when I click to open it,it returns the message "unable to access jarfile ./bin/examengine.jar" |
| | Hi Suppose I have my program reading from a file with the following contents: 0.000,-0.073,-0.127,0.034,-0.034,0.146,0.098,0.029,-0.093,0.088,0.107 -0.005,-0.049,-0.112,0.039,-0.039,-0.059,-0.083,-0.020,-0.103,-0.068,-0.073 0.000,0.015,-0.049,0.010,0.308,-0.020,-0.054,0.225,-0.029,0.288,0.132 -0.005,0.020,0.068,0.088,-0.005,0.098,-0.044,0.098,0.073,0.098,-0.151 -0.005,-0.005,0.020,-0.015,-0.239,0.010,-0.024,0.181,-0.015,0.312,0.103 -0.005,-0.049,-0.044,0.044,-0.117,0.010,-0.054,0.244,0.034,-0.024,-0.103 0.000,-0.137,-0.122,-0.107,-0.601,0.093,0.020,-0.068,-0.205,-0.078,-0.039 and then I use StringTokenizer (delimiter ",") and feed the numbers into a vector. [CODE] File myFile = new File(strFileName); //Pass the file content to strFileName BufferedReader br = … |
| | Is there a way to turn off auto indentation on the ide Eclipse, with every new line it is tabbing one space in, I don't see the option in preferences. |
| | hi, Im just a newbie in java, I really want to learn but sometimes I lost my guts to learn coz Im always stuck on something, for example in JTextField UI, I want the UI to accept just a numeric input and prompt the user when the input is not … |
| | i have written a program in which i am drawing using a mouse. however while drawing a new line the previous ones are still being shown. i have called repaint every time the mouse is moved. Can anyone please help. |
| | I have a code that calls a method, but after this call, any code after it is not executed....here is the method call skeleton [code=java] if(//some condition){ //some code myMethod(//some variables); //some code/*not executed*/ }[/code] the calling is done well but the code stays in that method i.e code following … |
| | I don't get where to insert the code and such; I could really use some help with this. :) Here's my java file: (I removed irrelevant stuff) [code=java] package projectprojectile; import java.applet.*; import java.awt.*; import java.io.File; import java.util.Calendar; import java.util.LinkedList; import java.util.List; import javax.swing.JOptionPane; public class Main extends Applet implements … |
 | A university has few seats vacant for the new academic yea in the various departments. Students from all over the country send in their applications to the admissions department. The applications will be processed & students who have cleared the test criteria will be admitted to the department. It has … |
| | presently iam running my application using the following url [url]http://127.0.0.1:8080/project[/url] without giving the above ip address & port number, can any one suggest alternate way like [url]http://daniweb/project[/url] thnx rajesh |
| | hi, I've a bug in the following code, i don't know where it is?? is it in the design itself, or the code needs threading especially in the "Swing". The following code is a part of simple word game that display a word with it's correct meaning among wrong ones, … |
| | Hi all, I have a core java application, I am getting the below exception when ever i run this application. I have a java file named Oracpt.java which takes all variables like username password and url from setttings file which from config file. becoase of this below exception im not … |
| | consider the following snippet: import java.sql.*; public class test { public static void main(String args[]) { try { Class.forNameI"sun.jdbc.odbc.JdbcOdbcDriverManager"); Connection cn; cn=DriverManager.getConnection("jdbc:odbc","username","password"); Statement st=cn.createStatement(); st.executeQuery("select * from emp"); System.out.println("Succeed"); } catch(Exception e) { System.out.println("Faild"); } finall() { system.out.println("Always"); } } } what will be the result  |
| | Which JDBC driner is used to connect a java client application to a database over aTCP/IP connection? |
| | I have to create a maze in which a robot has to follow the set of directions given and I'm so stuck on how to make the robot go through the maze. I have most all of it done but I'm still getting errors. The maze includes 1.safe place 2.chasm … |
| | I have made a Java prog which will accept a word and a sentence, and then prints the number of times the word occurs in the sentence... Here is my code: [CODE]class check_number_word { void check(String w, String s) { int l=s.length(),n=0,d=0; String s1=""; for(int j=1;j<l;j++) { s1=s.substring(d,j); if(s1.equalsIgnoreCase(w)) { … |
| | What would be the best way to implement dynamic search? So, for example, given the words: the, then, behemoth, abchemto Typing in 'he' would return all of the above words since they all have he in them. Is the best way to do this using a Trie? |
| | I'm using CsvReader/CsvWriter to read and write my data to csv files. And I have a question about appending lines of data to other certain lines. Lets say I have some data already saved, now I open my other program which has more info that I would like to add … |
| | I have to create a maze in which a robot has to follow the set of directions given and I'm so stuck on how to make the robot go through the maze. I have most all of it done but I'm still getting errors. The maze includes 1.safe place 2.chasm … |
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