36,051 Topics
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 | Hello everyone, beforehand, sorry for my english... I have to do client - server application. They must interact, using classes URL, URLConnection. I understand, how to send data to server. But I can not realize server work. The common algorithm of server is: 1. Start. 2. Wait for connection. 3. … |
| | I have the following listing application that allows the user to make selections to build a skateboard. How can I add the values to the arrays which are declared? I do not understand how each value will be displayed when a particular option is selected. Also... I want to add … |
| | I am getting the following error... init: deps-jar: compile-single: run-single: Exception in thread "main" java.lang.IllegalArgumentException: adding a window to a container at java.awt.Container.addImpl(Container.java:1010) at java.awt.Container.add(Container.java:928) at javax.swing.JFrame.addImpl(JFrame.java:480) at java.awt.Container.add(Container.java:899) at BoardCreator.<init>(BoardCreator.java:40) at Board.main(Board.java:14) Java Result: 1 BUILD SUCCESSFUL (total time: 3 seconds) Here is my code which is a box …  |
| | I have a file that is tab separated. i read it in as an arraylist<string> how can i print out only the second section of the file?  |
| | How can I set the classpath to a folder on my disk for a given JBoss application from within Eclipse? Thanks.  |
| | I am to create a menu application for a cell phone company. The user is to select their package, phone, and any additional add ons they would like, and it is to disply the prices. This is by far the most advanced programming I have done to this point and … |
| | Hello, This is my first post here. I appreciate any help you guys can give me. I'm having some issues with the technologies listed in the title. I've narrowed this down to a Apache/Tomcat configuration issue (I'm leaning towards tomcat issue). First of all, my setup: Apache 2.2.10 -- The … |
| | HI Folks , Sorry if it is the Repeated Question.... --->[B][COLOR="Green"] I want to Create An Object for a Class With user specified name.?[/COLOR][/B] Example : Class Name : Simple User Specified Name for a Object : SunServer i want like this Simple [B]"userSpecified Name"[/B] = new Simple(); how to … |
| | I am about to start my thesis this January 2008. I pick java as my PL but I don't know any database right now.. is there any database than i could learn easily and also fit to java? please help me.. |
 | I'm having problems with this. The thing is that when I send an MMS with J2ME to another devices with JSR 205 (two tested: SonyEriccson w610i and Nokia 5300), a receiving icon flashes, but the message is not in the inbox folder. I think this happens because of the application …  |
| | I want to put the buttons on my screen wherever i want, i'm not using design view. Is there any layout method or any other method i can use to reposition my buttons.PLEASE HELP! |
| | Hello all. I have this problem. I have a div with inactive buttons in a jsp page, buttons like select all | add to basket | compare | .... and some java logic determining whether any products (coming from a backend) are found on page load. I want to make … |
| | actually,,this is not my whole code..i just post the important one,,i am having problem with my code....i dont know how to figure out,,, everytime i am trying to withdraw and deposit..,,the balance will always be zero,, and i dont know how to figure it out.... [code] import javax.swing.*; public class … |
| | I have an application in which I want to find out that how many users checked the link or a page in the last 15 mins and then I want to compare the number with the next 15 mins. Can you give me some hints? |
 | "Write a program to display a linked list graphically. Draw each element of the list as a box, and indicate the links with line segments. Draw an iterator as in Figure 15-3. Supply buttons to move the iterator and to add and remove elements." The elements of the node appear … |
| | Need guidance in implementing mutually colliding group in java. I have a table COLLISION which will have info which all experiemnts collide . Each record will have the DB entries as <Collision ID, exp 1, exp 2>. there won't be another entry like <Collision ID, exp 2, exp 1> for … |
| | can some one help me write a program, that works when passing 3 values (r g b value), to a Color class and outputs its corresponding colour.. please help me by giving a sample code and the output ... |
| | Hello I was reading this article [url]http://www.developer.com/java/data/article.php/3303561[/url], but im having some problems. I did exactly the same commands and such as they did in this article, but I dont get 'Security window' where it asks the client to trust the applet, or not. I tested the applet on apache, and … |
| | hi! im new here, just a newbie programmer, asking a newbie question.. ^_^ out.println("<td>" + "<input type=\"submit\" id=\"" + patientNum2.get(counterQueue) + "\" value=\"" + patientNum2.get(counterQueue) + "\" name=\"btnShowCaseList\" />" + "</td>"); how could i get the value of "id" from the jsp page to the servlet?, the only thing i … |
| | Hi, I'v been trying to write a simple Java EE app, which deals with car renting. The entity beans and session beans are ready, so I've created a JSP for representation. It contains a single method, for init: [CODE] <%@page contentType="text/html" pageEncoding="UTF-8"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> … |
| | hi.. anyone here knows some links on netbeans mobility tutorials... kindly post pls.... |
| | there is no import javax.mail.*; in my java and net beans so how can i get those packages or what i have to do for importing that |
 | hi, we have a simple program here that states like this: [CODE] input >= 10 ex: 12 1 Square Sqrt Cube Fouthroot 2 - - - - 3 - - - - 4 5 6 7 8 9 10 11 12 [/CODE] i made the code already but I still … |
| | Hello all daniweb members.I want to develop a program.It will about anycast ftp.There are many ftp mirror on the web which you have to download same file from them.For example server A,B,C are mirrors and i want to download a file from them.And i wanna learn which one is fastest.First … |
| | Hi. I am attempting to update a Jtable with details of all the files on my computer. I am running Windows XP home edition version 2002 with service pack 3. Intel(R) pentium(R) 4 CPU 3.20 GHz [ICODE] for (int i = 0; i<r.size(); i++) { Vector v = new Vector(); … |
| | [B][/B]HI Folks, Suppose say Class ("DaniWeb") Contains 3 Objects 1.SunSystems 2.Microsoft 3.Yahoo [B]Now user has entered an Object name suppose say (Yahoo) .. and we need to confirm if the User Specified object exists in that class are not , if not we have to create an object with the …  |
| | guyzzz,,,help,,i dont know how to call a variable from other class,,could you help me,,huhuhuh,,,i really need your help... i have a class,, this is just a summary... public class BankAccount{ int accountNumber[] = {1234, 2345}; public class ATM{ BankAccount bank = BankAccount(); String accountNum; int accountNum2; accountNum = JOptionPane.showInputDialog("Please enter … |
| | Hi, How can i pass an array from jsp to javascript function.i have to design a grid in jsp.For that i'm using javascript functions. [URL]http://www.code-magazine.com/article.aspx?quickid=0303111&page=3[/URL] this is the link where i got the script.here i have to pass an array of values to display in that grid.can any one pls … |
| | i want to pass an integer value as an input, for that first i have to get the value as an string and then convert it into an Integer. i wrote the code and it looked like this .. [code] String age=""; int intage=0; System.out.print("Please Enter your age : "); … |
| | Need help with a java project I need to do. Here is the project specifications : """Create a console calculator applicaion that: * Takes one command line argument: your name and surname. When the program starts, display the date and time with a welcome message for the user. * Display … |
| | Hi to all, im MJ a 4th year Computer Science student... well im new at using netbeans... can someone please help me to have a tutorial about the codes on Mobile Applications... cause im planning to make an applet that will server as a quick refresher about a certain subject … |
| | I'm working on a project for school where we have to read from a voters database which is set up in the following manner: voternumber:voternama:havevoted Ex: 1253:Bill Simmons:false 3244:Steve Jobs:true I made this algorithm to search for a voter by ID number but for some reason it keeps coming up …  |
| | is there any project/work done for java web proxy ? i am looking for java snippets , ideas to write a proxy server note i am talking about web proxy servers (not for sun proxy server or any thing like that ) ( ex in php there are some scripts … |
| | hello everyone, I am working on an assignment for my cs class. It is basically a board game with 20 levels. i have a question about why this code in my program is not working...hopefully what I am posting makes any sense because what I am writing is already long...and … |
| | Problem: I need to read in each line of an input file into an aray of strings.The program should quick sort the array and output the sorted list to a file: I came out with the below code, buts its giving me two error and i need to update it … |
| | I have a program that asks for a knights coordinates and prints out all possible moves. That works. What doesn't work is if it is not a legal place for the knight (i.e. off the board) it prints an error but also prints coordinates for -1,-2. not sure why. Any … |
| | i have a 2d array. i know the position. how can i print it out. i just need to print out 1 single element not the entire array. |
| | I am new at java. I am making an address book program. Below is a code of the Search class. Could anyone please look into it? The program is giving a problem while runtime. [code] import java.io.*; import java.util.*; class search { private String str,sval; private String arr[]=new String[8]; char … |
 | ok, I have created a mobile application for a java enabled phone. I want to make the classic pong game with one paddle, and a number of blocks to break. I have managed to get the ball bouncing around the screen and off the block using a set of if … |
| | I have a 2d char array and i need to find the position of a specific char in the array. what method can i use. return Arrays.binarySearch(this.matrixCopy, "S"); does not work it keeps returning -1 when there is an S in the array. |
| | hello guyz,, i am really confused,,,we are about to make a program in java,,,we are making an ATM,,,however i am confused because i only have a transaction in ATm once and i dont remember much because it was 3 years ago... before i start,,i want to ask... what is in … |
| | parseInt does not seem to be throwing an exception when I pass a letter of the alphabet to it. I assume this is because ASCII letters are treated as integers. So my question is, is there a method that will do this: boolean isLetter(); And if not, how do I … |
| | Say I have a simple form... How do I call the three different values entered and output them to the screen in the file test.jsp? [CODE] <html> <body> <form method= "post" action = "test.jsp"> Please select the Honda 2000 features needed <BR> Aero Screen: <Input type = text Name = … |
| | I need a program that reads in each line of an input file into an array strings.The program should then quick sort the array and output the sorted list to a file. Please help me in this ASAP. |
| | Question The problem concerns the "effective radius" of a bicycle gear. The required formula i explained below. i need to Write a program to read: the wheel radius (use a "double" as variable type); the number of teeth on the front sprocket (a "long"); the number of teeth on the … |
| | I need to build a hash ADT from scratch. This means no use of any java library methods or classes. Does anyone know of any good resources that will explain how hashing works and how this info is helpful to build one? For example, how find() works, how insert() works, … |
| | [QUOTE]Can anyone help me what would be the best way to transform a text file data into a trendchart... using a Jpanel! The data file would have the type of errors and the quantity that each error has appeared... Then in the Jpanel would get the trend chart composed by … |
| | I working on assignment to create bank management GUI with swing. Right now I'm messing with login. Instead of using JDialog as many may suggest to use I used JFrame. [attach]8150[/attach] In case of any error messages on login attempt I wanted to display error above all previously displayed content, … |
| | There are two dates (e.g. 11/11/2008 and 20/11/2008). Then how can we calculate the number of days betweeen thess two days in java. |
| | I want to implement validation in my table cells. I the value does not satisfy certain condition then the focus should remain on the same cell and the user should be asked to enter valid value. I am using TableModel and i have tried implementing validation in the setValueAt() method … |
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