35,618 Topics
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| | Hello, Im not quite sure If I'm posting this in the right category. Briefly the problem is: I'm developing this web application using MVC approach that based on Java and JSP. I have created the servlet which use the DispatchRequest to forward the request-response. In my JSP, I use the …  |
| | i am working with a piglatin translator that has a GUI but i am stuck on how to make it translate when i you push the translate button here is my GUI what is in red is were the error occurs if someone could help i would appreciate it thanks …  |
| | hi, Iam trying to add names and numbers to a database then save them by updating them. i run my program, but when i press any button nothing happens????? pls help me, i do not know where is the problem in my program???? [CODE]import java.awt.*; import java.awt.event.*; import javax.swing.*; import … |
| | Hi, I am stuck in implementing the linked list in Java. I am using three classes to construct Liked List. One is Data Class (for holding Node's Data), Node Class (which encapsulates the Node properties) and a Linked List Class. Though it creates a successful linked list, but when I … |
| | [B]hi, i'm coding to take a input vector inputdata, and continuously find standard deviation to count how many distinct data ar available.for this i implement a small method called findk().[/B][code =java] public int findk(Vector inputdata ,double minSD) { inputdata=new Vector(); double tolerance=0.001,thisSD; Collections.sort(inputdata); if(minSD<0.0) this.minSD =inputdata.getStandardDeviation(); inputdata d1= getHalf(1,inputdata); inputdata … |
| | hiiii is their any special functin available to calculate the execution time of a program written in java.?? thanks in advance.. |
| | hi, I have an application that plays video files using jmf It plays some videos but without audio but while playing some videos the application automaticaly terminates and generates runtime error. A log file is created by name hs_err_pid2232.log which have following message: # # An unexpected error has been … |
| | Hi Experts! I am developing a online shopping module I am new to JSP. I have develop the interface as under for one product: Product Name Manufacturer Stock Quantity Price <Input text field to input quantity to purchase> hyperlink Buy Here that pass the parameters product ID, product name, price … |
 | Hi all, I am trying to make a simple game of Craps in Java. My idea was to have a JFrame with an image of the Craps betting table as the background image and when the player clicks on a section of the table they can place or remove a … |
 | OK. So this program is supposed to prompt the user whether they want to play the guessing game. If they say no then end the program otherwise it will start the game and ask them for their first name, last name and the number of guesses they want. Then it … |
| | I need help in writing a simulated annealing algorithm that is able to maximize f(x)=sin(0.15*x)+cos(x) defined on the interval 0<= x <= 40 using the cooling schedule. Please help me as i'm supposed to generate random numbers between 0 and 40 and substitute in f(x)=sin(0.15*x)+cos(x)...... thanks |
| | I am writing a box program, with various extras. I understand that proper coding requires properties to be private, but I now need to add to this program getTotalEdgeLength, getSurfaceArea, and getVolume methods. Would I put these methods in the main class? I do not know a way to only … |
| | [CODE] 1 // Fig. 29.24: RegexMatches.java 2 / Demonstrating Classes Pattern and Matcher. 3 import java.util.regex.Matcher; 4 import java.util.regex.Pattern; 5 6 public class RegexMatches 7 { 8 public static void main( String args[] ) 9 { 10 // create regular expression 11 Pattern expression = 12 Pattern.compile( "J.*\\d[0-35-9]- \\d\\d-\\d\\d" ); … |
| | [CODE] if(e.getSource()==btn1) { paragraph=txtAreaArticle.getText(); if (paragraph == "\n\n") { return 1 && countPara+1; txtField1.setText(countPara); } } [/CODE] i wan set count how many paragraph for a article in my textArea. Then the number of paragraph will display on textfield. any one can help me? |
| | Hi everyone im new to this forum and this is myfirst post so excuse me for any mistakes Im doing a final year project on banking i want help to move further basically im designed a jsp webpage in which the form has a selecttio list or drop down list …  |
| | I am trying to develop pages in JSP for e-mail.I have created login page and other pages.Now after the user authentication is finished and I need to send the user name to retrieve mails.I heard sessions can be used.I don't know anything about session creation and passing attributes of a … |
| | Hi, experts: How to assign a value to each choice in a checkbox, e.g. checkbox:apple;banana;pear. After I checked apple and pear, I can assign them values 1 and 3.Then these two values are sent to another jsp page, so that I can use the values in the new jsp page. … |
| | Hello im kinda of new to java and i am stuck on a program. I want to take a word as input and display it in reverse. ex - hello to olleh I tried to do the For loop but i am kinda of stuck. Can anyone please help me! … |
| | i am developing one application in which i should control the client monitor from server . so i am wondering java will provide anything to control the monitor display . if you can show some light on this topic plese help me. |
| | I want to access search web services. For that i am having SDK file in ".java" file format. If i compile and run those files from command prompt i am getting result. But i want to achive this through browser. Is there any way to compile and run from browser?. … |
 | Hi, I am trying to implement a client server wherein the client must be able to download a requested file off the server and upload a file onto the server. I have implemented the download part of the code using TCP Sockets. In the upload part from the client to …  |
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| | [code] import javax.swing.*; import java.awt.*; import java.util.*; import java.awt.event.*; import java.io.*; public class PartOfSpeech extends JFrame implements ActionListener { private JButton btn1,btn2; private JTextArea txtAreaArticle; private JTextField txtField1,txtField2,txtField3; private JMenuBar jmb; private JMenu fileMenu; private JMenuItem out; public PartOfSpeech() { setTitle("PART OF SPEECH SYSTEM"); Container con=getContentPane(); con.setLayout(new BorderLayout()); jmb=new JMenuBar(); … |
| | Hi, i'm making a class which runs on a different thread to the main class. I want this thread class to listen for keyboard events and then I will have specific action from there. The thing is, I don't know how to even start. I read that setFocus can only … |
| | Hey! My problem is that I can't modify the "File name" label / text field programatically where you write the file name of your file in the JFileChooser. If I want to have "Write your file" written in the file name (by default) field how would I manage to do … |
| | I need some help about how to connect MS Access database in NetBeans.I visited [url]www.netbeans.org[/url] but didnt got much help related to MS Access. What I did is I start from Net Beans Desktop Application ....But when i select the option of database in it ....It asks Database URL....I have … |
| | I was wondering do all programs have a unnamed thread by default? For example, if i have a very basic program, can i put Thread.sleep(int) anywhere in it and it will make the program sleep for a set amount of time? |
| | hello friends I want to gain some knowledge on java. could you help me in reffering some good e-books. Also let me know what is the best IDE to be used for java? thanks in advance. |
| | If my application server(weblogic) is running in windows and If I try to view one of the JSP file which prints a lot of html data generated in the server side, I am not facng any delay. i.e in the JSP I have the following lines of code. <% String … |
 | I am trying to figure out how to read a multi line txt file with a data like ranking, athlete name and Athletic sports name with two different year records like 2007 and 2008 like 1. JOHN CARTER in Sprint Race 19. JOHN CARTER in Sprint Race I am trying … |
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