32,199 Topics
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| | hello, i ask for help if you can : i have to write algorithm detect all cycles in undirected graph , I don't know , can any one help. Thanks . |
 | Hi All, Is it possible to bind an array or a Vector with a event listener? For an example if we add an element to the Vector or remove from the Vector, can I use an event listener to track the changes? Thanks a lot in advance. Cheers..!! |
| | I am learning Java, and found a code segment as follows. [CODE]public static void displayClusters(final Collection<Cluster> clusters) { displayClusters(clusters, Integer.MAX_VALUE); } public static void displayClusters(final Collection<Cluster> clusters, int maxNumberOfDocumentsToShow) { displayClusters(clusters, maxNumberOfDocumentsToShow, ClusterDetailsFormatter.INSTANCE); } public static void displayClusters(final Collection<Cluster> clusters, int maxNumberOfDocumentsToShow, ClusterDetailsFormatter clusterDetailsFormatter) { System.out.println("\n\nCreated " + clusters.size() + …  |
| | what is the Diffrence between Compare & compareTo |
| | Hello, I have a string taken as input from user. I just want to check if a particular character within that string, is part of Standard English character set or not. How do I code the IF condition for this purpose? Regards, Arvind. |
| | i hope you can modify my simple bouncing ball :( its flickering.... i dont know how to solve it. [CODE]import javax.swing.*; // For JPanel, etc. import java.awt.*; // For Graphics, etc. import java.awt.event.*; import java.awt.geom.*; // For Ellipse2D, etc. //import java.util.*; import java.io.*; import java.util.Random; public class aball extends JFrame … |
| | hello... everyone! i have included graphics over Map like a popup menu, but now i need to provide a mouse click action over the graphic. Is it possible...?? let me explain properly. i have given city details over open street maps by using graphics2D, now i need to give a …  |
| | hi everybody, i'm a student and i'm sick of going around this. lol i have to make a game of tic tac toe, and i did everything, and everything is working fine exept this. this is a method to see if there is a victory in a line, it does … |
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| | In the listener for a button in the actionPerformed(ActionEvent e) part, if you call e.getSource it returns a type object. So how can I turn that object that it returns into the original button? |
| | I have a bmi application that was written in Java via netbeans but now I am trying to convert the Java to C#, I have pasted a sample of my Java and under that what I have so far for my C#. I would be grateful for some help with … |
 | hi again, I think I installed Java 3d correctly... I can compile code, but the code won't run. this is the error I am getting: [QUOTE] # # A fatal error has been detected by the Java Runtime Environment: # # EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x0949c964, pid=3832, tid=3604 # # JRE … |
| | ok so i have a project for school, and i finished so the teacher wants it to read for a .dat the parameters for the java class here is what i got: [CODE]public void cargarCurso(){ try{ BufferedReader fileIn = new BufferedReader( new FileReader("c:/cursoSem2.dat")); String dataRenglon = fileIn.readLine(); while(dataRenglon !=null){ StringTokenizer … |
| | Hi I have always seen many softwares having a customized look, for example, PuTTY software has two computers icons in a network. Others, such as NetBeans IDE, when double-clicked first show some sort of a window before showing a real software environment. So I am just curious about how this … |
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| | Hi ,I am trying to implement stack with linked list ,but when I run it show up NullPointerException How can I avoid that with try and catch Thanks [CODE]public char pop() { try{ ListNode returnNode = top; top = top.next; } catch (Exception e){} return returnNode.value; }[/CODE] |
| | Hello, Can anybody help me for connection to multiple database dynamically. Its means I wann to connect the respective database by choosing of the user , Tell take an exmple we have 3 clients namely C1,C2,C3 and having respective databases namely D1,D2,D3. I want to connect the database D1 if … |
| | Hi i am trying to use Java for a video conferencing [B]web application.[/B] I am having trouble finding an appropriate framework which enables capturing webcam video in a web page. Could you help me out if you have had similar experience. I guess applets can be used but some recommended … |
 | I have a check button and I was wondering how to get the value from it. When I use this code it gives me that it is selected always, even when it is not. [CODE] public void itemStateChanged(ItemEvent e) { // TODO Auto-generated method stub JCheckBox sourceBox = ((JCheckBox)e.getSource()); wave1Invert … |
 | Hello experts! I've made a GUI that calculates the surface area and volume of several shapes based on User input of discreet information such as length, width, depth, etc. [IMG]http://i246.photobucket.com/albums/gg88/mustardy85/ScreenShotGUI.png[/IMG] _______________________________________________________________________________________________________ How do I get java to draw the shapes of images in the BLUE rectangle to the right of … |
| | Hey guys, i made a program that calculates a heat index for a area. User inputs humidity, tells actualy temeperaute. But when i compile it, it says i havea syntax error at the Scanner Input = new Scanner(System.in) line? why is that?[code]public class HeatIndexCalculator { private static final double c1 … |
| | SA : I ask if anyone can help me in this algorithm , it is suppose that this algorithm find all the cycles in given graph . but there exist a bug it return only one cycle not all : [CODE]public class Main { public boolean funcs(boolean Graph[][]){ ArrayList<ArrayList<Integer>>l=new ArrayList<ArrayList<Integer>>(); … |
| | Hello, In case anyone has used the JADE multi-agent framework: Is it possible to run a Main container on a PC and a regular container on another PC over the Internet, rather than just LAN? |
| | Ello, Does anyone know of some 3rd party libraries that can simplify working with XML through Java, because as we all know the normal SDK's libraries are terrible.. Thanks in advance! |
| | Hello, forum. My question is: how can I format my output when outputting in JTextArea. I want to have the same functionality as System.out.format has (custom spaces between values). Maybe it is possible to print PrintSream objects in JTextArea? I am currently using append(String s) method but I am not … |
| | Hi, I was wondering if someone could help me. I am using java SWT and am trying to output a list of files and its properties to the screen. I have a file browser popping up and when i select a directory and click ok it outputs the path and … |
| | [CODE]import java.io.File; import java.io.IOException; import java.io.FileOutputStream; import java.io.FileNotFoundException; import java.awt.TextArea; import java.awt.Font; import java.awt.Color; import java.awt.Image; import java.awt.Toolkit; import java.awt.Canvas; import java.awt.Graphics; import java.awt.FileDialog; import java.awt.event.*; import java.awt.image.BufferedImage; import javax.imageio.ImageIO; import javax.print.DocFlavor.URL; import javax.swing.JFrame; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JLabel; import javax.swing.JButton; import javax.swing.JTextField; import javax.swing.Timer; import javax.swing.event.MouseInputAdapter; import javax.swing.*; … |
| | I'm trying to replace values in an array while removing extra values. This is what I have, but it doesn't seem to work and I have no idea why. I'm just challenging myself to not use any Strings in my project. This will be the last step. [CODE]/** * * … |
| | Let me tell you I already got the tutorial on how to do this [url]http://db.apache.org/derby/docs/10.3/adminguide/tadminconfig814963.html[/url] But sincerely speaking I did not understood how to do any of the two methods described. Let me tell you my confusions and what I didn't understood and I am developing my project in netbeans. … |
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