36,051 Topics
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| | Hello from Ireland, In NetBeans I created a class that extends JFrame called “SearchCustomerPage”. The class has a JButton called “Search” that has an ActionListener associated with it (so when I click “Search” a method is called). I have another JFrame page (“NewBookingPage”) that creates bookings. To create a booking …  |
| | [B]Please tell me how i can run jsp page in Linux Tomcate server... i found the error - [/B] org.apache.jasper.JasperException: /USERINFO.jsp org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:433) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:361) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) root cause java.io.FileNotFoundException: /USERINFO.jsp org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:278) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265) javax.servlet.http.HttpServlet.service(HttpServlet.java:803)  |
 | Hey i am trying to start using an interface in my java programming do recommend i if i start by try creating my own or i download one if i should download which would you recommend. Thanks  |
| | I am to create a superclass that has at least two data fields, a constructor and two other methods. Create two subclasses that inherit from the superclass each one of which adds at least one more field and at least one more method, one of which must be an 'over-riding' … |
| | I use to pass data between *.java and *.jsp, since this is a MVC framework, it will go by the *.java first. so i used request.getSession().setAttribute("test", "01010101010") to save the value, and then in *.jsp, use request.getSession().getAttribute("test") to get value. But it returns a strange string "682342348" all the time. …  |
| | hello i want to replicate this form [url]http://i77.photobucket.com/albums/j74/bertyhell/layout.png[/url] the top is just the form the lower one is how i'm triing to do it 'red' is a boxlayout and the green parts are panels with normal flowlayouts i cant seem to get the alignment right this is what i got … |
| | Hi There ! I want to prepare SCJA certification and i need your help and guidance Please! if some has complete course or book for that ,i will appreciate it ... Thank you for All  |
 | Hi all. Every now and again I get these Java update messages, which (if I choose to) in stall the latest JRE. In the C:\Program Files\Java folder, I have: One folder named: 'jre6' Several named: 'jre1.60_' and then a number (01, 02, etc.) I presume that the folders 'jre1.60_...' are …  |
| | hey i select any image from combobox.. the label should updated to display that image.. i tried this code. I am not getting through., Just see dis.. please help me... reply fast.. its urgent.. [code] import java.awt.*; import java.awt.event.ItemEvent; import javax.swing.*; public class x extends JFrame { JLabel l; ImageIcon … |
| | Hi, here is my problem. I have the next task //Write a program that removes from a given //sequence all the numbers that present in it odd //number of times. Example: //{4, 2, 2, 5, 2, 3, 2, 3, 1, 5, 2} {5, 3, 3, 5} The problem comes in … |
| | Hi I have selected to create a Robocup simulation team as my final year project. and i want to do it in JAVA. even though my interest is AI area i have no idea how to start this project. im still in my research time so have some time to … |
| | What i want is when i click upload button upload the file with progress bar [CODE] <form action="image_upload.php" method="post" enctype="multipart/form-data"> <input type="file" name="filei" id="filei" /> <input type="submit" name="button2" id="button2" value="Upload" /> </form> [/CODE] this is my php file [CODE] <?php $name=$_FILES["filei"]["name"]; $size=$_FILES["filei"]["size"]; $type1=$_FILES["filei"]["type"]; $dirpath = "upload/"; //upload image if ((($_FILES["filei"]["type"] …  |
| | in jsp,i created login.jsp. in login.jsp,i created username,password and submit button. my login.jsp goes through database. i am okie BUT i want validation in login.jsp which goes through database. |
| | [CODE]import java.io.*; import java.util.*; class Telefon { public static void main(String[] args) throws Exception { /* IO */ BufferedReader sisend = new BufferedReader(new FileReader("telefon.sis")); // IN PrintWriter valjund = new PrintWriter(new BufferedWriter(new FileWriter("telefon.out"))); // Out int n = Integer.parseInt(sisend.readLine()); // Reading first integer String abi; String abi2; String[] numbrid = … |
| | I have a class which extends LinkedList and implements Runnable. I also have a main class which modifies the extended LinkedList. So, the issue is, the LinkedList is being modified by 2 threads: main() in the main thread and run() in the thread which is created from implementing Runnable An … |
| | I have a gameboard class: class gameboard extends JInternalFrame In the constructor i have the line: setDefaultCloseOperation(DISPOSE_ON_CLOSE); my gameboards are actually in an array myboards[500] were each is an object of this class. the deal is I want to be able to tell which are open and i want to … |
| | It says error in line 13, code 0, object expected, the clicking on member login does not show login and password text box :-( . |
| | Hello, I am building a servlet which handles the login process after the user clicks the submit button on the previous HTML form. The servlet should get the data entered from the form then perform an SQL statement to select all the data in the registered users table. Once all … |
| | how can you make a program in java that can count a numbers of vowel and consonant? please help me... |
| | Hi guys This is my first time to post in this forum. And I'm glad to be a member in this useful forum... Actually I've read the announcment that was posted by the forum Qeen regarding bringing assignments and expecting others to solve them; And I think this is a … |
| | i am a student of mcs and doing my project in the agent technology.but there is problem that how the agent monitores the user activities and propose the required solution for them.can any one help me that how can monitor the activities using java code. |
| | i use netbeans 6.8 with jato ve ee plug-in i tried to run a simple web project ,in the un in the netbeans everything looks fine but nothing browser i got this message in firefox : The connection was reset im use win 7 help me please:'( |
| | Java implements pass by reference right? So when I do cons("item", stack) with the following code I should print out --> itemabcd. But that isn't the case, why? String stack = "abcd"; cons("item",stack); System.out.println(stack); // public void cons(String item, String stack) { stack = item + stack; } |
| | Hi all, So i basically created a database with an arraylsit. All the data is stored in the arraylist and is added by a stringLine. [B][U]All this is shown in the code[/U][/B] My Database is an Insurance Database. Well basically i'm finding it hard to find out how to actually … |
| | please how do i create a login page using gui in java?And also how do i make the login page move to the next java page when the password is correct? |
| | Hi everyone, I have quite a problem. I have a text pane and three menu items which are cut copy and paste. In my textpane i have some text and an embedded icon. when i select all the contents of the textpane and click cut all the contents of the … |
| | Hey, I've been going insane with a question I've been doing all day. Creating an application that prompts a user to enter a date. I have to use arrays to store the number of days in each month i.e 31 for January, 28 for February etc.. I have created a … |
 | hello! i have to create Jtable with two columns one is for data(string)and another one is for animated gif file ... how can i write a gif and data in two columns respectively.... please give any sample code snippet... |
| | Hi guys! Can't figure out why this is not working: [CODE]<div id = "calendar"> <script language="javascript"> document.write(TODAY); </script> </div>[/CODE] Here is the CSS: [CODE]#calendar { width: 956px; height: 15px; float: right; color: #ffffff; background-color: #036779; padding-top: 5px; padding-bottom: 5px; padding-left: 2px; padding-right: 2px; text-align: right; }[/CODE] The text doesn't show. … |
| | I am trying to find memory leaks in my application. I added -Xrunhprof arguments to the java arguments. When I try to restart the service it times out. This is the new argument that I added: -Xrunhprof:cpu=samples,file=java.hprof.txt ******************************** java.home=C:/JRun4/jre java.args=-server -Xmx512m -Dsun.io.useCanonCaches=false -XX:MaxPermSize=128m -DJINTEGRA_NATIVE_MODE -DJINTEGRA_PREFETCH_ENUMS -Dcoldfusion.rootDir={application.home}/ -Xdebug -Xrunjdwp:transport=dt_socket,server=y,address=28999,suspend=n -Xrunhprof:cpu=samples,file=/temp/java.hprof.log ******************************** … |
| | I'm using Eclipse and even though I've done more challenging things than this I keep getting stuck no matter how hard I hammer away at it. This is a package, so the end of the first part (Driver Class?) is really what I'm having trouble with. Comments are included in … |
 | Hello everyone... I wanna develop a Java Web Applet that will allow me to check a PC's HW configuration (cpu, HDD, and other hardware information), but I don't know what libraries to use, or where to start looking. Anyone can give me a heads up? |
 | Hello everyone. I am University of Bath Computer Information Systems student and i have to submit a java calculator. As far as i am quite new to java i would like to kindly ask you for some help with it. Here is my task: Write a program that takes as … |
| | I have written a working calculator program but it will not work out negative inputs. For example, 3+2 = 5.0, but, -2+5 = Wrong type of expression (error message). The user inputs the calculation which is called "expression". I have two stacks, one for operators and one for operands and … |
 | I made a program that edits the contents of a XML file. It works fine, but when there are newline characters between the nodes, the program doesn't handle them correctly. It looks like it's handling the newline as if it's a node as well. The problem is that put all … |
| | The code I'm using to change XML content isn't working... Does anyone have any idea what I'm doig wrong: [CODE]package domtest; /* public class Main { public static void main(String args[]) throws Exception { DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder(); DOMBuilder domBuilder = new DOMBuilder(); Document jdomDoc = domBuilder.build(builder.parse(new File("src/home/projects/misc/Test.xml"))); Iterator iter … |
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| | Well I am creating a Projects for Database Analysis. I require a Dynamic DashBoard which will change according to changes in database.This Application is Web base Application.I cant think any more and require your help to create dashboard(meter).First I tried to create dashboard with javafx but as It cant run … |
| | hi i don't have my book with me and i can't remember what is the code for let's say, the console asks "please enter your name" what would be the code for wanting to take what they type and assign a value like name = "whatever they type" [code=java] system.out.println("Please … |
| | need this to change to random colors every .8 secs. compiles ok, but not getting wanted results. cant figure out where i am wrong? i get the applet viewer window with a black square but no color change. Here is the .html file <applet code = ColorChange .class width = … |
| | I want to parse a string into something like an array: [url]ftp://user:pass@host:portpath[/url] [url]ftp://anon:1234@111.222.333.444:9999/path1/path2/[/url] I read the java docs about using Pattern and Matcher but I keep getting an "IllegalStateException: No match found" error. [CODE=java] import java.util.regex.Matcher; import java.util.regex.Pattern; public class test { public static void main(String[] args) { String s … |
| | I wrote this code to load the image on mouse click...but it is not displaying as soon as i click the mouse...i need to resize the jframe to make that visible what is the problem with this.......please anybody ans for this....thank u in advance... |
| | I had a couple of posts on getting this thing to work. I finally got a small test program working, but now this, the actuall program, doesn't. I don't understand the error either(Will include it at the end of this post). Here is my code, with the line throwing an … |
| | Hello! I try to follow steps mentioned here ([url]http://www.speechforge.org/projects/cairo/install.html[/url]). The first thing is about JMF. I downloaded jmr-2_1_1e-linux-i586.bin (the other thing is that I've got 64 bit computer). I found [url]http://www.luniks.net/luniksnet/html/java/jtvd/doc/jmf.html[/url] . I executed bin file in /usr/lib as it is written in this mini-howto. Then I edited /home/mainaccount/.bash_profile file … |
| | Hi I'm doing my Fourth Year B.E. project under the internship of MindTree! Now they have only told us what to do , but haven't guide much! Now, we have been told to develop an search application similar to Google Desktop one, only lighter version of it! This is how … |
| | i have a school assignment where I need to create a countdown timer to attach to a scoreboard i made. the code that is attached is a program i found that is a stopwatch and will count up. im looking to get the timer count down from 2 minutes and … |
| | Hello, Can anyone help me solve the error in this program?? I get the following error: [COLOR="Red"] Exception in thread "main" java.lang.NumberFormatException: For input string: "" at java.lang.NumberFormatException.forInputString(Unknown Source) at java.lang.Integer.parseInt(Unknown Source) at java.lang.Integer.parseInt(Unknown Source) at converter.main(basic_convert.java:20)[/COLOR] The whole program runs properly. The error come after asking if I want … |
| | Hello All, I am working on a bluetooth based project and I need to identify model of mobile device. I know we can get the manufacturer of device from first three bytes of bluetooth address. But I am not getting the concept by which model of that device such as … |
| | If any one have questions for scjp 6.0 please send, Thankyou |
| | Help making arithmetic exception getting the square root |
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