36,051 Topics
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| | i have to create a n hotel management program using GUI, i hava done the gui part so far but i need help in creating the actionPerformed class,how am i supposed to do the reservation,and select rooms for 2 persons or one and rooms that overlook the sea or the … |
| | I created a panel in the other components of inspector window in netbeans. I want to add and display this created panel inside the panel on button click which is inside the frame.But so far i am not able to do so. Any help will be appreciated |
| | hey friends i m using servlet in order to write the output to jsp but i m getting output as something BufferedReader.io.inpitstreamreader@somenumbers i want to return the string output to jsp back .i need help stuck i this thing [code=java] try { String line; // String path="/home/muzammil/apache-tomcat-6.0.18/work/Catalina/localhost/remote_compile/"+filen[0]; Process p = … |
 | The aim of this thread is to gather useful information in regards of Java web development. If you know some tips and tricks, tutorials or any interesting links that has not been already mentioned in previous posts please share with us (please always check to avoid double posting). Please DO … |
| | hi, i just learned how to use the while code and put it in a simple program im working on, i however am stumped on how to use it in a part of it here is a snippet of the program code [code=java]String classname, faction; Scanner inputDevice = new Scanner(System.in); … |
| | I have a question about handling binary files. I am trying to create a method called read in a user defined class called Record that will handle the data from the file. Each record has 84bytes and the first 20bytes is a String, and the rest, 64bytes is for 16 …  |
 | Hi, I was wondering if there was a way to compare two images for similarity (i.e. checking to see if signature is same as signature on a credit card). Thankx in advanced. -- C++ |
| | Hi, I need your help. I'm searching for very tough JAVA tests over the net. Can you send me links of such a tests. Thank you!!!  |
| | I have to do this simple project: (a) A new project named LetterCountExample (b) A main class for the project named the same of the project. (c) A class called LetterCounter, with the following members: i. A eld of type char named letter. ii. A method of return type int, …  |
| | i have used the following code to save the text in a textpane into a file [code] final RTFEditorKit kit = new RTFEditorKit(); jta.setEditorKit(kit); jfr.setTitle(fname.getName()); OutputStream out = new FileOutputStream(fname); kit.write(out,doc,0,doc.getLength()); out.close(); [/code] where jfr is the main frame,jta is the textpane,fname is the filename given by the user,doc is … |
| | hi, this is a program where you type a name of a class and it gives a brief description, what i want to do is after it gives the description of a class it goes back to the beginning of the script and asks you to enter another one. How … |
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| | so this is my first homework ever in Java so heres what I need to do: 1)a project named LetterCounterExample(done) 2)a main class for the project of the same name as the project (done) 3)a class called LetterCounter (done) with the following members: i. field of type char named letter …  |
| | hi friends , How to establish a wired mesh network of our own in na lab. Also, i need a code for the project entitled "Heuristic algorithms for designing self-repairing protection trees in mesh networks". can any one help me out in this issue. i don't want simulation results. i … |
| | hello friends. i would like to know if it is possible to run a class file using a java program itself.i mean a program tht would return the answer (run) the class file . |
| | Hello i am new to java and playing around with some scripts. I have three java files [B]Main.java[/B] [CODE]package snake; import javax.swing.*; import java.awt.*; public class Main{ public static void main(String[] args) { new board(); } }[/CODE] [B]board.java[/B] [CODE]package snake; import javax.swing.*; import java.awt.*; public class board extends JPanel { …  |
| | cant figure out why summaryCounter wont increment?? [CODE] if (source == calculateButton) { int summaryCounter = 1; double payment = Double.parseDouble(paymentTextField.getText()); double rate = Double.parseDouble(rateTextField.getText()); int years = (Integer)yearsComboBox.getSelectedItem(); DecimalFormat currency = new DecimalFormat(" ##,##0.00"); double futureValue; String s; int i; futureValueListModel.clear(); System.out.printf("\n Investment Summary Option %d \n Monthly Payment%,10.2f\n … |
| | I need to create a program that uses the String classes to read the suffix .txt and if true, return the sentence inputted, but if false return another sentence. I'm unsure of which boolean method I will need to use to execute this. Can anyone help me? Here is my … |
| | I am trying to make a simple chat program with the username in a certain font styles while the chat text in default. However, the results is both the username and the chat text have the same style... What did I go wrong?... I have also tried to look at … |
| | Hi everyone.. I wrote this program but I could not get the panels as what I arranged them.. also I don't know what's wrong with the scrollbar cuz I couldn't get the concept of it very well.. [CODE]import javax.swing.JFrame; import javax.swing.ImageIcon; import javax.swing.JPanel; import javax.swing.JButton; import javax.swing.JLabel; import javax.swing.JTextField; import … |
| | I need help with my JAVA homework, i need to make a java program about making a diagram, or diargrams of any kind graphic diagrams about any kind of data.  |
| | Hello. I am new to jave so please forgive my newbishness. I've used Netbeans IDE 6.0 to construct a GUI for my project. However I have ran into a few problems; 1. I cant seem to get a jButton to change the text of a jLabel. (im trying to get … |
| | Working no something for school and keep getting this. \\filesvrcls\2011\stawil\Java\midterm2.java:37: illegal start of expression public static int numsum(int a, int b) ^ \\filesvrcls\2011\stawil\Java\midterm2.java:60: class, interface, or enum expected } Process completed. [CODE]//*********************************************************** // midterm2.java Author: Will Stahl // // demonstrates Keyboard class //*********************************************************** public class midterm2 { public void main(String … |
| | Stuck again. could use some help from the community. [CODE]// This program accepts a height and a radius from the user // It uses a subroutine to calculate the volume of the cone // The formula is v = (3.14 * r * r * h)/3 public class Midterm { … |
| | Hi everyone ... I hope that all of u r OK... This is the second semester for me in JAVA .. I have an assignment to create a GUI using JAVA and I almost finish but the problem is the teacher asked to use any component that she didn't teach … |
| | Hi, I'm having a problem debugging a piece of code. I will paste the JSP version (that works) and then the exact same thing in Servlet form (that does not work). The code's function is to change a picture on mouseover and then revert onmouseout. I will paste for only … |
 | can anyone explain what is a lightweight application?....Thanks |
| | I have tried many things obviously not everything or it would work, but i need your help. i have run out of ideas on how to fix this. im programming a fishing database where users enter the data and over time it collects and shows them were the type of … |
| | i created textpane and added undo manager like this... [code] final JTextPane jta; jta = new JTextPane(); jta.setEditable(true); final UndoManager manager = new UndoManager(); jta.getDocument().addUndoableEditListener(manager); [/code] and undo button was coded as [code] ImageIcon undo = new ImageIcon(getClass().getResource("images/undo.png")); final JButton bundo = new JButton(undo); bundo.setActionCommand("undo"); bundo.setToolTipText("undo"); ActionListener act_undo = new … |
| | Hey guys, I'm working on converting some existing Java Code over to C++, trying to use only built in standard libraries because the platform we are building on we won't be able to have any outside libraries, and it's been a while since I had to write "fancy" c++ code … |
| | [code=jsp]<%-- Document : response Created on : Jan 20, 2010, 11:34:37 AM Author : srishi --%> <%@page import="java.sql.*"%> <%@page import="java.io.*"%> <%@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"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>employee data entry</title> </head> <body> <form action="response.jsp" method="get"> <center>Employee Data Entry Page</center> <table … |
| | Is it possible to populate a treeview by reading the nodes of XML? It is for web application. Without using swing is there any other method? If so.. Please share with me.. Thanks in advance Aish |
| | C:\Documents and Settings\Elliona\Desktop\kirby>javac payrollsystem.java payrollsystem.java:166: '}' expected filter.close(); ^ 1 error here is my full code [CODE]import java.io.*; import java.util.*; public class payrollsystem{ public static void main(String args[]) throws Exception { File employee = new File("employee.txt"); File dtr = new File("dtr.txt"); PrintWriter pw = new PrintWriter(dtr); Scanner filter = new …  |
| | Hi, I'm learning aspectJ and was wondering how can i use the Plugin in Eclipse IDE ..i Googled alot but nothing helped me !! i downloaded the Plugin fom the eclipse site but can't find an aspectj project when i open eclipse and try a new project i'm supposed to … |
 | Hi there, I'm unable to run the demos java files. I followed the ways according to the prefuse tutorial. It says, 1) Go to "build" folder 2) Launch demo of interest java -cp prefuse.jar:demos.jar prefuse.demos.<name of demo here> and I inputted e.g. java -cp prefuse.jar:demos.jar prefuse.demos.TreeMap.java Please advice. [COLOR="Red"]*Screenshot Attached![/COLOR] |
| | Hi i have the next task. 5. Create a hierarchy Dog, Frog, Cat, Kitten, Tomcat and define suitable fields, properties, constructors and methods according to the following rules: All of these are Animals. Kittens and tomcats are cats. All animals are described by age, name and gender. Kittens can be …  |
| | Hi Guys, I posted earlier, and I figured it out after a few hours of playing around with it. Now, a new question arises. Is it possible to get the input from a JTextField and add it into a JComboBox via an array? The only thing stopping me from achieving … |
| | I had posted earlier requesting help with my code, but I quickly cleared up my issues. I am almost complete with my work, but I was just wondering if I could get some help on fixing some code which may cause my program to crash or not function properly. [CODE]public … |
| | Hi guys, I'd really appreciate it if someone could look over my code and tell me why my JComboBox isn't working. I've got 3 Classes, 2 for the GUI, one for the standalone which the array is contained in. [CODE]import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JFrame; import javax.swing.JComponent; import javax.swing.SwingUtilities; import … |
| | Hi.. I have created an application which is using the org.apache.log4j.Logger class for logging various INFO/DEBUG?ERROR messages.. The application is working fine, including logging, when Run As Java Application in the Eclipse IDE..(log file is generated successfully and entries too are created) Then I exported the project to a .jar … |
| | Hi all... I need some help in manipulation of the text files to read in a matrix text file. The format of the text file is as follows: <matrix> rows = 2 cols = 2 1 2 2 4 </matrix> I need to read in the text file and put … |
| | when i runnig my jsp page some type of error occurd(deployement error).i am running the page in netbean under glassfish server.how can i remove this error. |
| | Hi, I am creating a RPG Character Generator and I have a InputDialog box which asks the user to enter there characters name. I have a do while loop to check for if the user entered a character which allows runs through the code if the users enters a correct … |
| | Alright, so i have some code i have been working, i basically have done the skeleton and have looked through my Java book and scowered the web for some ideas. I'm stuck on a few thing. basically i am trying to write a program to break a code. I enter … |
| | i need a little help with this problem as soon as possible: Establish a program that will accept any 10 input number. if the said inputs are greater than 10 inputs display an error using try, catch, finally syntax. then display the sum of the numbers. >>tnx  |
| | I'm trying to create my own little collection of code that I can basically copy and paste into programs as I need them, but it seems to be causing some problems. After importing a LinkedList class and a Node class into Netbeans and then changing the constructors a little bit, … |
| | Hi! m doing a project for MSc academic year, m i need a implementation code of single perceptron network, which will hv six inputs and a single output which gives acurate result.... |
| | I am using CruiseControl Binary Release 2.8.2 and I am sending mails using this. I can only send the url for log file generated by the software. So I need to add some text to email body and attach a file. So can you please tell me how should I … |
| | Hello code monkeys :p I need some guidance with an application that I am working on. The idea for the application is as follows: The user is presented with a search field where he/she is supposed to enter a control number. This control number has a relation to a certain … |
| | hello everyone, am a third year university IT student. I am preparing for my final year project. I have basic knowlegde of java and am confident of my tcp/ip, i need a project idea(s) using these two and how to go about it if possible. I need help from the … |
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