36,051 Topics
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| | Hi all, I have two questions. 1) How to refresh a page in jsp even if the javascript is not supported by the browser or if it is disabled? 2) How to get the path of the window in js? Thanks in advance.  |
| | hello I am developing a java application, in my application i have to move data with large size from one object to another and i don't know the perfect way to do it so i can save memory and increase the processing speed because performance is very important in my …  |
| | I can't understand the following statement [QUOTE]The Hotspot VM now implements Thread.yield() using the Windows SwitchToThread() API call. This call makes the current thread give up its current timeslice, but not its entire quantum.[/QUOTE] given at [URL="http://www.javamex.com/tutorials/threads/yield.shtml"]http://www.javamex.com/tutorials/threads/yield.shtml[/URL] I understand that after a thread yields, other threads get a chance to …  |
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 | Hi... I am creating an HTML Table in my JSP page taking values from text file. Now the problem comes when I read the file again to update the Table content. In this case I have to refresh my whole page to see updated Table. :icon_cry: How can I refresh … |
| | I have been able to output a palindrome but now it does so even if it is not a palindrome. Thanks you in advance for any help. ;) [CODE]import java.util.*; public class ec2 { static Scanner kb = new Scanner(System.in); public static void main(String[] args) { String word = " … |
| | So my problem is that, i have a text area with 3 rows. Its a part of a chat application which receives text from a user. I want to send the text and clear the text area as soon as the user presses the enter key. Now the problem is … |
| | Hi, I've started to learn about threads in java. I'm trying to make this simple animation of a rectangle. Where am I going wrong? I was under the impression that if a class implements Runnable, when it is executed, it looks for the start method, which in turn starts the … |
| | I want to Develop a 2d rpg game with java,how do i start and what do i need to know? I have been using java for two years.my team consists of two programmers and one graphic artists |
| | how to generate code to get output- input-12345 output-1+2+3+4+5=15 |
| | I want to join 2 dots of the same colour that is 2 red dots or 2 blue dots ....but after applying my code...when i run the program it does not join the 2 same colour dots...even though it does not display any error. So basically i am trying to …  |
| | hello all my problem is a confusion on the second problem here i managed to solve the first problem and made the program i hope its correct as u see.. First problem Three memory locations A, B, and C contain numbers. Write down the algorithm for finding and printing the … |
| | I need to port an application i wrote in MS csharp to java. I used the WebBrowser control to deal with complex html and javascript. Whats the simplest solution for java? (im using swing components) |
| | when we write [javac abc.java] a bytecode is generated. AND THE BYTECODE CONTAINS INSTRUCTIONS FOR THE JVM and each instruction is 1 byte in length. NOW my question is where does the interpreter comes into action and what happens after the bytecode is generated. I was told that interpreter produces … |
| | I need to create a serverless chat manager can some one help me |
| | Hi! How could I change custom cursor size? I was playing with Point(a,b), however the cursor is always 32x32 and it looks horribly. Below you can see my code snippet. Thanks! [CODE] Toolkit toolkit = Toolkit.getDefaultToolkit(); Image imageCrossCursor = toolkit.getImage(BeadToolbarColor.class.getResource("/icons/cross_cursor.png")); cross_cursor = toolkit.createCustomCursor(imageCrossCursor, new Point(0,0), "Cross cursor"); panel.setCursor(cross_cursor); [/CODE] |
| | Can someone help me figue out why I keep getting an erorr that I am missing a return statement. [CODE] import java.util.*; public class ec1 { static Scanner kb = new Scanner(System.in); public static void main(String[] args) { String word = " "; String s = " "; char letter; … |
| | How can I add a clickable url in a JTextPane like this [url]http://www.google.com[/url] or If I ask other way, how can I make the links in JTextPane clickable ? When the user click or double click this link the default browser will open the link that is clicked. I have … |
| | What is java and the whole bunch of things. I only know how to use eclipse to write java project, probably java 1.4. Can someone give me a picture about the whole bunch of java things such as jsp servlet spring struts hibernate J2EE glassfish J2EE 5 J2EE 6 EJB …  |
| | I need to reinstall Java RE but when I try to uninstall it does not show in the Control Panel. I have downloaded the latest version and when I try to install it says there is a version already there 'would I like to reinstall'. The Windows Installer pops up … |
| | Hilan International Bank decided to have a salary plan for its employees. In the new Policy, bonus is based on the fact that one is a senior staff or junior staff. You have been called in as a programmer to develop a software to meet this policy’s requirement: (a.) Create … |
| | Hi, I have a requirement to create instant messaging via Java that can be accessed through the web browser and can communicate with MSN, ICQ, Yahoo, GTalk and AIM. Can you advise which is the best open source IM that I can look at to get things started? Thanks for … |
| | I need to port an application i wrote in MS csharp to java. I used the WebBrowser control to deal with complex html and javascript. Whats the simplest solution for java? (im using swing components) |
| | My question is: ** (De Morgans law) , De Morgans law can sometimes make it more convinient for us to express a logical ex-pression. These laws state that the ex-pression ! (condition 1 && condition 2) is logically equivalent to the ex-pression (!condition 1 || ! condition 2). Also the … |
| | Hi, I know that the get() method returns the element at the specified position in the list, so does that mean that for this particular sentence of code: [CODE] HtmlInput inputMsgKey = (HtmlInput) getSendNotificationForm.getElementsByAttribute("input", "name", "msgKey").get(0);[/CODE] get(0); will return the "input" element? Thanks. |
| | i really need help... i dont know where the problem... the line error on that part>>`class reserveform extends JFrame implements {` import java.awt.Dimens; import java.awt.*; import javax.swing.*; import java.util.List; import java.util.LinkedList; import java.util.Iterator; import java.util.ListIterator; import java.util.Collections; import java.awt.event.*; class reserveform extends JFrame implements { // operation interface JPanel operation; … |
| | I have been teaching myself Java programming for few months now. Now i am looking for some materials which can help me develop my programming technics. It will also be useful materials to deepen my understanding to the java programming. I would appreciate to get some advise. |
| | Hey guys im very new to java and am having some difficulty solveing a problem for my class. I have an array of 10 numbers and have to write a method that will eliminate any duplicates in the array and return that array. Iv been toying with different thing for … |
| | I want to create a digital clock in Java can any one help me out i am having problems updating the second variable |
 | Hai friends, Am using java swing, is there any juint test for swing gui application, kindly help me in this problem.Thanks. |
| | [CODE] import java.io.*; import java.io.IOException; public class ReadWriteFile{ static File f1 = new File("C:\\source.txt"); static File f2 = new File("C:\\dest.txt"); public String readFile() throws IOException { String msg = ""; FileReader fr = new FileReader(f1); BufferedReader br = new BufferedReader(fr); msg = br.readLine(); System.out.println(msg); fr.close(); return msg; } public void … |
| | Hey, I was wondering if somebody could test this out for me? I need to know if it acts the same on other pcs as it does on mine. The game seems to randomly speed up/slow down. Can you test if it does the same? [url]http://www.filefront.com/17673747/BoundingBox.jar[/url] It's a simple space … |
| | I was fooling around with some Date classes when I came upon the following anomaly. [CODE=JAVA] import java.text.DateFormat; import java.text.ParseException; public class Class { public static void main(String[] args) { DateFormat df = DateFormat.getInstance(); try { System.out.println(df.parse("12/20/10 1:40 AM")); } catch(ParseException pe) { pe.printStackTrace(); } } } [/CODE] This compiles … |
| | Hi could someone tell me how to write a EJB module in NetBeans IDE/ MyEclipse. i am using NetBeans 6.9.1. not able to figure out what type of project to select from the choices? i am trying to write a Remote interface, a Home interface, Session Bean, ejb-jar and a … |
| | /*trying to set the textfield to null when i input the numbers but the zero still remains after i start typing.How to i get it to disapear when i start typing */ package Vectors; import java.awt.GridBagConstraints; import java.awt.GridBagLayout; import java.awt.Insets; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.util.*; import java.util.*; import javax.swing.*; … |
| | I need some one explain to me marker interface and give to me an example in java Thanks, |
| | If i want to put tis sentece "No Such Data." where did i nit to implement it into if there was no data found? [CODE]import java.io.*; import java.util.*; class Book { static Map<String, String> phone = new HashMap<String, String>(); public static void main(String args [])throws Exception{ searchBook(); int option; do{ … |
| | Hi, I making project in struts2 so please tell me how can send some variable from action class to jsp and how those variable get on jsp page. Thanx in advance. |
| | Lets say I have a JPanel and an object called ball inside of it, instead of creating gets so the JPanel can draw the ball image I would like the ball object to draw itself on the JPanel. Is it possible? Thanks :D. |
| | for home work assignment we have to Implement a class Product. A product has a name and a price, for example new Product("Toaster", 29.95). Supply methods getName, getPrice, and reducePrice. Supply a program ProductPrinter that makes two products, prints the name and price, reduces their prices by $5.00, and then …  |
| | First of all, Is it actually possible for a keyboard to be able to accept input from multiple separate keys at the same time? For instance, If I was to make a simple game like pong, and set an up and down key for each player, could both players press … |
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| | It is said that JAVA is very safe, as the JRE is allocated a dedicated space in the RAM all of the time. Therefore, no virus can piggy back............ Can anybody explain this concept of JRE getting space in RAM and HOW MUCH SPACE IS IT ALLOCATED IN RAM? THANK … |
| | Dear All, I have java listener which keep reading for incoming data to the particular port. Most of the times it works fine only at times it gets too many open files error. Below is my codes what could be wrong? Thank you. [CODE]public static void main(String[] args) { try … |
| | good day everyone... i would like to make a project using barcode reader... can somebody explain me how the the data from the barcode reader can be retrieved..? does the barcode reader keeps on reading data, then you are just going to break the process thru your program codes...? plz … |
| | hey guys, im creating web service where i have one method in the web server that should be returning me string array. the problem is when i use "design view" to add the operation(method) to the server it does not allow me to chose string array as a return type. … |
| | Im looking into getting these certifications. I was just wondering how they are looked at within the programming community/ job markets? Is it something worth looking into or is it more of a converstational/bragging piece? |
| | Hello new here, I couldn't find where this belonged. It's really hard with dail-up my satillite broke and couldn't afford to get it fixed right now so.......why can't I download Java and Adobe? I just bought this new computer, it's a Dell Inspiron 580s. This is the error code I …  |
| | I'm currently trying to make a mini dictionary. To do it i need to learn how to sort strings in alphabetical order. Can anyone tell me or give me a hint as to how am i going to sort the words in alphabetical order. |
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