36,051 Topics
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| | Hello, for the project I'm working on, I need to be able to access say, a JPanel object that was created from the execution of a Jar file, and use it inside another class outside of the Jar file. Any ideas? Thanks |
| | I am writing some code which already gets the pixel array from an image, I then alter the pixel values. How do I now display this new pixel array as an image? I hope someone can help. Thank you |
| | hi , i m looking for a project which contains some graphics,lots of functionalities, and most of all is something different from the normal management projects (online test,hote; or lib mgmt etc). I have thought of something related to "Stock exchange" or Artificial intelligence project(which can predict behavior of situations-"brainstorming" … |
| | Hi, I am having issue with the Scanner class, it seems to fall through to the next line, depending on how I call it from my class. I cannot track find a pattern to this. Except it tend to happen more when calling the nextLine() from the Scanner class. Some … |
| | Hi, I have one question. You know some applications can be minimized to the lower right corner and with a hot key (e.g. ctrl+F1). Once the hot key is pressed, the application is activated or some event is activated. I wonder how to do that in java if there is … |
| | Good Day All, Not sure if I should post this request here or under the SQL Forum. I am studying JAVA and my code is for JAVA, but my query is regarding the SQL prepared statements to be used in my JAVA code. I have a program called SingleUser.java. The … |
| | hi all java application which is made of awt and threads can be call from jsp is possible or not . i am having one application which is in swings and i want to call that application from jsp so that i can run or use this swing application in … |
| | how can i print a triangle in java.Its shape is like this A B C D E F G H I J K L M N O i have to use ascii code for printing alphabets.  |
| | package javaapplication1; import java.util.*; import java.io.*; public class GO { public static void main (String[] args) throws FileNotFoundException { Scanner inFile = new Scanner (new FileReader("grades.txt")); PrintWriter outFile = new PrintWriter ("output.txt"); int q1,q2,q3,q4,q5; double g = 0; int ctr = 0; double ave; String name; double cAve; String grade; … |
| | I wrote a java class to connect to database (DBManager.class) and then use JSP to call the java class to get the output that is read from the database. Here, i use Apache tomcat. it gives me an error when i try in my browser here the message error: [QUOTE]org.apache.jasper.JasperException: …  |
| | hi helper, i wanted to create web app without using any IDE and test in tomcat....where should i put my class files and jsp files and xml......what is manifest ? plz tell me directory tree structure thanks bean boy  |
| | This a portion of my code with 2 sets of 2d array [CODE] public class Form2 { public static void main(String[] args){ int[][] dayForm = { {25,15,28,17,19}, {31,21}, {23,24,19,18}, {15,19,22}, {14,17,13,18}, {8,12}}; int[][] boardForm = { {10,18,17,17,15}, {16,9}, {13,19,15,25}, {11,10,8}, {14,17,19,13}, {11,4}}; final int SIZE = 4; int[] totalday = … |
| | Hi, I am using Weblogic 9.2 MP3, I want to find Programmatically IP, Port & Server State of Weblogic. Let say there is a page named index.jsp deployed on domain mydomain. So after weblogic is RUNNING, I can access that page by hitting URL [url]http://1.2.3.4:9876/mydomain/index.jsp[/url]. I want the IP(1.2.3.4), Port(9876) … |
| | hi guys, I am doing online form project, I get problem with navigation. the user can forword and back the page . I need to prevent user from that. I mean that once user gets new page , he can't get the prevouis page , but it asks him to … |
| | Got a small detail problem that I cannot get to understand myself. The program, see attachments draws dots on the screen. There is a dot class for the details of the dots to be stored, that is size, colour, shape (square or round) Problem is with the colour...Cannot get other … |
| | Edit: Title - java access denied on graphic file Edit: I didn't realize i didn't finish typing the title before submitting. I put my applet on the web but it says not initialized and the error is complaining about my graphic. Am i not allowed to have graphics? How can … |
| | Hi I found a class ReadingPixels someone wrote on the net which given an image it dispays the x,y,r,g,b values as the mouse is over the image. I have a separate class I want to add the panel to. I can add the panel to my frame however I think … |
 | Can somebody show me how to create a simple two column for strings? I need a sample code. Thank you for those who will help me. |
| | Hello everybody. I'm a [U]beginner[/U] and I need your help. I have a GUI programme and I need to make it run from an icon on the desktop. can you help me with an easy way to do so? |
| | Please Help me!!! I know this is a stupid newbie error, but I am a newbie. My program compiles and runs, but I can't get the interestP and the principalP to pass to the other class to fill the graph. I have worked on this non-stop all day. [code] import … |
| | 1. My code runs but the text panels won't display properly in the panel until i hide the frame and open it again or click min/max. 2. Can someone suggest the kind of layout i need to keep letters of each word together so it doesn't wrap to the next … |
| | Hi Guys and Gals, I am new to programming and I decided to write my self a simple class to help me with my uni work. It is just to save me writing to screen then using the scanner class to read the input. It would be easier with a … |
| | Hi, school started back up the other day, and our first assignment (as a group of eight) is to create a Server/Client project that is used to play network games. Before I go further, I want to say that I HAVE done work on this, quite a bit. I just … |
| | I can't run .exe's, so I can't install JRE 6u15, even though it's harmless. Can anyone zip their jre directory and upload it for me as a .zip (not a .rar) file? I'd really appreciate it.  |
 | [code] import javax.swing.*; import java.awt.*; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.KeyEvent; import java.awt.Robot; import java.awt.Event; import java.awt.AWTException; public class keyboard implements ActionListener { int i; String s[] = {"esc","F1","F2","F3","F4","F5", "F6","F7","F8","F9","F10","F11","F12", "psc","slk","pau","A","B","C","D","E", "F"}; String g = ""; Object b; JMenuBar m = new JMenuBar(); JMenu m1 = new JMenu("File"); JMenu m2 … |
| | Hi guys!! I am intended to develop a project in JSP. I am gonna use [I]NetbeansIDE6.5.1[/I] and [I]mysql[/I] in [I]Linux[/I]. I have few doubts: (i)[B]Uploading files[/B](eg:jsp,war et al) to the server. (ii)[B]Code to extract .war[/B] files to a folder in the server. (iii)Using [B]https[/B] for login forms. Thanks in advance …  |
| | anyone got examples on this?  |
| | [code]class AC { int ID; String name; int AcNo; Date ODate; double balance; double transaction; AC(int ID,String name,int AcNo,Date ODate,double balance,double transaction) { this.ID=ID; this.name=name; this.AcNo=AcNo; this.ODate=ODate; this.balance=balance; this.transaction=transaction; }[/code] this is my main class i want to write those data which are relevant to those variable variables in an … |
| | Ok, this one is a little tough for me to explain. I have a runnable jar file that contains a .exe that I'm trying to exec in my program like a command line function. Usually to execute a .exe in a command line I would do: C:\"path to .exe" -option … |
| | Hi To All, I have an equation in string like this ((BASIC+HRA)*(30/100)) Using replace function Now i replaced this into values... String formula = ((10000+3000)*(30/100)) whole thing as a string now 'Formula'... How can i calculate this formula float amt = formula; Now i have an error...type casting....i can't calculate … |
| | I am learning openMP in C++ in Linux environment, and I am using Netbeans for programming. I want to test the parallelization of my program by multiplying two 1000*1000 matrices on a dual core processor. When I run the program, it terminates by segmentation fault for stack overflow. My program … |
| | i need to add this criteria to my program: "if the user enters a last name in small letters the program should display the surname with the first character in capitals" Can some1 please help me with some examples for this?? i really need it.. thank you guys :) |
| | Hi, I have the following jsp file which receives an audio file from the form. I am receiving the form data as Multipart and saving the uploaded file as temp.wav. The uploaded file is in uLaw audio format. I want to convert it to PCM format and save it as … |
| | hi all i need ur help to solve this problem 1. write an algorithm to find the average of there number called a,b,c 2. write an algorithm to add up all odd numbers between 0 and 100 3. what data type for (i) True ] if data type for 123 … |
| | Hi I have made a program in which a servlet page is called by html page. The problem is that whenevr control goes on to servlet page it shows that the servlet page does not exist. I am deploying my application on tomcat and I am using MS-ACCESS as database. … |
| | hi guys..i need help with my assignment..hpoe u can help\ A credit card company charges its customers monthly interest for any unpaid balance. Assuming that you owe the credit card company some money, you have decided to stop using the card and to pay off the debt by making a … |
| | hey friends, im getting this error illegal state of expression plz help me wid this Connection db = DriverManager.getConnection(connectURL); Statement stmt = db.createStatement(); String c = request.getParameter("criteria"); String a = request.getParameter("value"); ResultSet rs; if(c.equals("BillNo")){ --error-- rs = stmt.executeQuery("select * from orders where billNo="+a+); }else if(c.equals("UserId")){ --error-- rs = stmt.executeQuery("select * … |
| | Hi experts, I have finished writing my servlets and web pages. all my servlets tested using tomcat in windows operating system. In other words , I have finished the development stage. Now I need to move all my servlets and web pages to web server for deployment. but my web … |
| | on line 40 I have: public void start That is the only thing that is showing something wrong. I have addad, curly brackets with no luck and when I put a semi colon at the end everything after it shows an error. The programs opens the applet but does not … |
| | Hi here is another question: I searched the internet for information about the radio tag, and this is all I found so I put it in my code [CODE] <s:radio name="..." list="myArray" /> [/CODE] The above displays all the elements of the array with radio buttons. My problem is that … |
| | I am writing a seprate driver class for my programme, but I need to know how to add two panels to the jframe. Any one help? |
| | How do i create a array of 100 JLabels (all of them being the colour blue) and then insert them ALL into a seperate JLabel? Tom  |
| | i have to code a program that ask for the user to enter a positive integer and then I have to find if the value that was enter is divisible by 11 (with no remainder) and display "yes" if it is divisible and "no" if it is not. <<My program … |
| | [CODE=JAVA] String line = "Extracting from E:\\Junk\\morejunk\\file.txt"; System.out.println(line); //prints: Extracting from E:\Junk\morejunk\file.txt String[] splitPath = line.split("\\"); //exception thrown here String folder = splitPath[splitPath.length-2]; System.out.println(folder); [/CODE] [QUOTE]Exception in thread "AWT-EventQueue-0" java.util.regex.PatternSyntaxException: Unexpected internal error near index 1[/QUOTE] My objective is to always print the folder containing the file being extracted (morejunk … |
| | I did some JSP development a few jobs ago (7 years ago) and remember having the toughest time with jsp debugging especially. I used JBuilder back then. I'm getting some jsp stuff going again in this job and was wondering if you could give me opinions on the best tools … |
| | I need help , I want to save article in the database but i cant read the text from the file to the database where i have a body column for the content of that article Plz help my assignment is due on monday , by the way I am … |
| | Hi, I have written some code which when a mouse is clicked, a red circle is drawn at that position. The x,y coordinates are stored in an ArrayList. What I now want to do is enable the circles to be selected and then dragged. When the mouse is released the … |
| | I have written a program which allows the user to click on the screen which draws a circle and when the user clicks on the circle again they can drag it around. My code allows the circle to be dragged it still displays the original cirlce and draws the path … |
| | I am implementing an FFT class. I get the pixel data from an image then pass this to the FFT class. Once I apply the fast fourier transform to the array the result is an array of complex numbers. At the moment I convert the array of complex number to … |
| | I am very green at writing Java, I am trying to go through our chapter examples and putting in data for a mortgage calculator with a GUI. This code is far from finished but the example says "Now save and compile" and this is where I am getting the error … |
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