32,199 Topics
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| | In my application I have: Class B Class C extends B. Class C contains one method that overrides a method in B. Lets call the method myMethod and Class C has the constructors that simply call the super method in the parent class. In a JSP file that uses these …  |
| | Hello All. First, I thank you all for viewing this thread. Second, I was wondering if anyone here knows of a way to pull data from Wireshark and to insert it into an Eclipse Application. My eclipse application is measuring data sent across a network. If I can pull packets … |
| | Hello I am looking forward for converting a .jpg image into binary image. Please guide me. |
| | hii,im new to java graphics.can anyone tell me how to create a circular slider(like a Jslider just its circular in fashion). |
| | Hello. I'm developing a game in c++ and have found that you almost have to be Bill Gates to figure out how to connect to the internet using c++. So I've taken the idea that I should create the first section of my game in Java. This section would open … |
| | [CODE]Could not connect to: : 50404 java.net.ConnectException: Connection refused: connect at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333) at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366) at java.net.Socket.connect(Socket.java:520) at java.net.Socket.connect(Socket.java:470) at java.net.Socket.<init>(Socket.java:367) at java.net.Socket.<init>(Socket.java:180) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.connect(RemoteTestRunner.java:560) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:377) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196) [/CODE] has anyone run into this issue and or find a fix? I've not been … |
| | Hi, I am trying to write some code which uses a JSlider to specify the number of lables to be displayed on a frame. I know how to create the JSlider and display it, but I am not sure how to implement different numbers of lables. I hope someone can … |
| | hi all ...how are u? i have a question ...how can i output the items of a java Stack ...is there any predifine method?? and another question ...how can i use the class Queue without interface ? ...because i'm typing in my code (Queue q =new Queue();) but it's giving … |
 | Hello, I have a question about sorting. How can I sort HashMap by element in the HashMap ? That's meaning, if I have in the Sys class map such as: [code=java]protected Map <Constructors,RaceTeam>raceTeam=new HashMap<Constructors,RaceTeam>();[/code] and in the RaceTeam class I have this variables: [code=java] protected Constructors name; protected int totalScore; … |
| | Hi all , I have been assigned to do a task which is to create a web based application, the task is actually a normal form application, I have to use that form and make it online as a web-based application and store the information in a database I know … |
| | Hello, I have a Tree structure with custom TreeNode nodes. The structure of TreeNode is: private int level; private String label = null; private String data = null; private TreeNode parent = null; private Vector <TreeNode> children = null; I should find each unique path from root to all leaves … |
| | Am having problem calling a simple stored proc to insert data from a java program. The insert statement works fine when called directly with prepare statement. But when I use call it through a strored proc I get an error. jar file is ojdbc5.jar. - oracle10g. Then i tried another …  |
| | this is my code and it says i have problem in line 5 which i couldnt solve . can anyone please help me with this soon! [code=java]import java.text.*; public class SavingsAccount { private double static annualInterestRate; //declare static variable private double savingsBalance; //instance variable public SavingsAccount(double bal); //constructor { savingsBalance= … |
| | I'm having a problem deciding how to handle a situation. I'll briefly explain whats going on before I ask the question(s). I have a viewObject (bean) and what it does is display information that is gathered. To keep it from getting too complicated I'll say I have 3 jLabels. One …  |
| | is it possible to use try catch exception inside while loop? [code=java]while(username_ctr <= 5){ try{ user1 = str_div[username_ctr].indexOf("open_pm_tab",username_start); user2 = str_div[username_ctr].indexOf("')", user1); user3 = str_div[username_ctr].lastIndexOf(',', user2) + 3; str_username[username_ctr] = str_div[username_ctr].substring(user3, user2); //System.out.println(str_div[username_ctr].substring(user3, user2)); username_ctr++; }catch(Exception e){ slash1 = str_div[username_ctr].indexOf("</font", 0); slash2 = str_div[username_ctr].lastIndexOf('*', slash1); //System.out.println(slash1); //System.out.println(slash2); //System.out.println(str_div[username_ctr].substring(slash1, slash2)); //System.out.println(str_div[1].substring(slash2,slash1)); … |
 | Hi, I am trying to do something like this:- [CODE]1 10 20 30 ##########|##########|########## rect 1 rect2 rect3 5 ########### 15 user rect - (transparent and temporary based on user mousedrag) [/CODE] Now If a user clicks suppose in the middle of rect1 and drags it to the middle of … |
| | I'm starting to experiment around with Java Web Start since applets have some limitations. I'm using Net Beans and it's working fine except that I get this pop-up when I run it: [quote] The application's digital signature cannot be verified. Do you want to run the application? [/quote] It would … |
| | I'm having a problem with my countdown timer and am figuring that I'm missing something obvious. All I'm trying to do here is get my jLabel to countdown from 60 to 0. [code] ActionListener refreshListener = new ActionListener() { int counterLimit = 60; public void actionPerformed(ActionEvent e) { javax.swing.Timer refreshTimer … |
| | So I am writing a voice activated recording program, and one of the things I would like it to do is plot the current and past volume level on a JPanel. Write now I am simply reading one byte from the audio buffer, converting it to an int, taking its … |
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| | Hi all , I have decided to use java applets and java servlets regarding creating a form.(because I don't know other langauages except java) guys the scenario is like this , visitors will enter to website, surfing it and then they will enter to feedback form , they have to … |
| | Hello, I am getting out of bound error whenever i run the program and trying to add a Node (this would be in my switch). but the error that i am getting is just above my switch statement. Can anyone help me to figure out what it is that i … |
| | hello friends,I made an applet to calculate sales tax but i am having a problem in executing it.It is giving error on execution. and the error it is giving is, cant create:java.lang.reflect.InvocationTargetException following is the piece of code of applet. import java.awt.*; import java.awt.event.*; import java.text.*; import javax.swing.*; public class … |
| | I'm trying to compare lines in two different files. The basic idea is I want to take line 1 of file 1 and compare it to all the lines of file 2 and print the results into a third file, then do the next line of file 1 and repeat …  |
| | i want to write an application that will use a mobile phone to make voice broadcast in java.I know it is possible,but what are the dimensions,i will be very grateful if any1 can render an opinion to help me out |
| | i made an audio application confernce using tcp it was good but the delay was not good i try to do it using udp but i found some problem like nat network and i can't use the same socket to send and receive in two threads tell me this socket … |
| | 1. a. Create a parent class "Vehicle" with one method "turnLeft" that prints "Vehicle turning left". b. Create a child class "Bike" which overrides the "turnLeft" method and prints "Bike turning left". c. Create a Vehicle reference referring to a Bike object. Is it legal? What happens when the "turnLeft" … |
| | Hi,Im makin a web based application.For users to access it they need to login. I m using java,jsp,html for this.I wish to know how can i prevent access to the pages of application without logging in i.e. if user types in URL of some page of application in the address … |
| | anybody online there, i want the solution of my problem.i will feel free to discuss the code of my aplication  |
 | I am trying to execute a exe file within' a jar file. My question: 1. How do I locate the exe within' the jar? I am using the [ICODE]runtime().exec()[/ICODE] to launch it. Right now I have to extract it then launch it, then after it's finished delete it. Thanks PO |
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