35,619 Topics
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| | what are categories of each of the compile time errors and run time errors with examples for each |
| | I thought "JTree. setRootVisible(false)" would hide the root yet display its children, but it doesn't. I've even tried to expand its children but nothing shows when I hide the root. Here's the code if you need to see it. [code=java] DefaultMutableTreeNode rootNode = new DefaultMutableTreeNode("Root"); JTree projectTree = new JTree(rootNode); … |
| | i need to manage post query with images attachment for different-2 users ....so how can i manage it..... while upload any file i am having access denied error..plz tell me and send me specific link... |
| | [COLOR="Green"][B]Assume that you need to calculate a sum of large number of integers which are in a array. by using the thread class. plz i want the answer today.\\\ thank you[/B][/COLOR] |
| | jsf page: [CODE] <%@page contentType="text/html" pageEncoding="UTF-8"%> <%@taglib prefix="f" uri="http://java.sun.com/jsf/core"%> <%@taglib prefix="h" uri="http://java.sun.com/jsf/html"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <f:view> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/> <title>JSP Page</title> </head> <body> <h:form> <center> <br><br><br> <h:dataTable id="dt1" value="#{tableBean.perInfoAll}" var="item" bgcolor="#F1F1F1" border="10" cellpadding="5" cellspacing="3" rows="4" width="50%" dir="LTR" frame="hsides" rules="all" summary="This is a … |
| | Hi everyone, I need your help please What do i need to make my program read the next character using console.nextChar(); I've added the following: import java.util.*; static Scanner console = new Scanner(System.in); and then in the main: char ch; ch = console.nextChar(); and when i compile i get this … |
 | Hello, I've been trying recently to find out how to print out text into the screen like from keyboard, that is printing into active window, just like from keyboard port. Is there a premade package/method for that or how do I use the keyboard port? |
| | Hello, I'm creating a windows like calculator using Java, I seem to be having some problems.. It will let me calculate two numbers together e.g. 2 + 2 (It will display 4) however, if I want to do multiple calculations... e.g. 2 + 2 + * 3 It will only … |
| | I made a program which converts binary with ft pt but cant get it work, what could be wrong here? [CODE]import java.io.*; import java.util.Scanner; public class NumberConverter { public static void main(String args[])throws Exception { Scanner sc = new Scanner(System.in); System.out.print("Enter a number: "); String string_input = sc.nextLine(); double double_input … |
 | So I'm trying to define a counter in a while loop, and print it from the class: [CODE]public class odd { public static void main(String[] args) { System.out.println("Input your number"); int x = IO.readInt(); int odd = 0; int even = 0; while (x != 0) { if (x % … |
| | So I'm trying to write a program: Print a number in scientific notation with 3 significant digits (e.g., 0.000838423 = 8.34*10^4). You must define and use a module that rounds a number to a specified number of decimal places. Here is what I've got so far: [CODE]public class Sn { … |
 | hello every1, Need 1 help here in creating a .jar bookmark, I m newbie in java. I want to make a jar bookmark 4 my site. Tell me how can made thisin pc , step by step, is there is any software?  |
| | Hi am working on a shape inheritance hierarchy and am having trouble with this particular class I have two errors that state class, interface, or enum expected: on the lines indicated in red everything else seems fine I have attached the whole project If you need to check out other …  |
| | I'm working on a program where I need to have the user enter the size of the array and then enter the numbers to be stored in the array. If the user enters in -99999 the program quit. I also need to display the sum of numbers enter into the … |
| | [B][COLOR="Green"]hi evryone !! i am designing sites in sharepoint 2010 and i need to use the javascript in vb.net!! and how to display an alert message in a web page using vb.net!?! please help :) thank u :) [/COLOR][/B]  |
| | I noticed my JDK is 6u21(1.6.0_21) and the newest is 6u24(1.6.0_24) is there any way for me to update without re downloading, is there and reason to either? |
| | Hi everyone!!! I am newbie in java programming, I am using a communication API. I am havin some problems. Iwant to use a method defined like this: enableRecording public abstract void enableRecording(DeviceID device, Boolean immediatelyActive) throws CstaException and for that I am doing the following: recordingActivation = new Boolean(true); enableRecording(id, …  |
| | Hello all can anybody tell me why i am getting null pointer exception. [CODE] String mesg=""; try { URL u = new URL(strOp); BufferedReader r = new BufferedReader(new InputStreamReader( u.openStream())); String s=""; while((s=r.readLine())!=null) System.out.println(s); if(s.equals("SUCCESS")) mesg = mesg+"Your Request has been Processed.you will be intimated by a sms soon"; else … |
 | Hi If someone could please advise me I was thinking of starting a course in Java programming online with one day workshop,the course requirement Knowledge of programming principles and experience in procedural programming or scripting languages, such as Visual Basic, C, or JavaScript; and an understanding of object-oriented languages, such … |
| | Hello Everyone, i'm trying to convert a .jar file to .exe... first of all is it possible? If so then how? |
| | Hi :) I am writing an admin application for a website I've written. It's a basic database update/insert/delete app. I started by using the website's server, but the time it took to connect to the server (since the main JTable is populated from the db, you have to wait for … |
| | how to read a file which contains more than 95000 <95 thousand> lines in java. |
| | Greetings to the community! I am trying to print a two-dimensional character array and it is printing out ASCII values instead of the actual characters. I think the solution is simple but I can't figure it out. The following is the code snippet and the function that I am using … |
| | Dear all, I have a .exe file of a hydrology model(in FORTRAN) and I need to supply an input file to it using < redirection operator and later store results in a file.It is required to do it through Java platform.Eagerly waiting for relevant replies. |
| | Hi everyone, i am trying to validate password entered into my system from a jsp page, i want to create a method that would check that a password entered is not less than six characters and not more than 15. Does anyone have an idea on how i could go …  |
 | Hello great people. I'm a beginner in programming and I'm having troubles with NetBeans. In those lines down NetBeans reports [B]expected ';'[/B]. I'm assuming that it has something to do with activating classes or jar files somewhere in NetBeans, but i can't find where nor which classes to activate. Please … |
 | Help with DOM.I am trying to access the nodes acc. to their levels in an xml file.reached upto 3-4 levels then getting a nullpointer exception.Please help...wat datastructure would better suit this.i need to index all the nodes.the xml file is cs.xml given under and the java code below tht. <department> …  |
| | Ive been learning java since last month and I wonder if theres any website that you can suggest which will force me to do a problem solving to enhance my program logic skills? Like homework or assignments from beginner to intermediate to advance. I know there are lots of tutorials … |
| | Hi, I have some problem i must to do some homework for our subject called object modeling in java. Award: Add code to the List class. Inserted numbers should be in two way linked lists stored in ascending order sorted, duplicate values are allowed (re-inserting the same value of nothing), … |
| | Hi guys I am quite new to java, and been trying to make a fibonacci number program just to learn more. However I have search the web seen examples and more and I still cant get run this code, there seems to be something wrong with> int N = Integer.parseInt(args … |
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