36,051 Topics
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 | Hey guys, I wanna download a file to a certain directory on the computer. I have code that downloads to the same place where it's launched but I want it to download the files do another directory. (This isnt my code I found it on a tutorial) Here is the … |
| | i need help with converting celsius to fahrenheit and vice versa in my program. for example, if someone would input 0C for the first temperature and 32F for the second temperature, i need to convert one of these temperatures so that my equals method can recognize that they are equal …  |
| | Hi, can someone please help me, I am new to Java and I am getting a NullPointerException error and cant figure out why Here is the code class TestBirthday { public static void main(String[]args) { int num; System.out.println("Enter number of people to test"); num = Console.readInt(); Birthday2 Experiment = new … |
| | Hey all I have to use an external library itext-1.4.5.jar in a program helloWorld.java.It is located in /usr/share/java First I had compiled as $javac -classpath /usr/share/java/itext-1.4.5.jar HelloWorld.java Then I had created a manifest file manifest.mf as Manifest-Version: 1.0 Created-By: PreetiC Main-Class: HelloWorld Class-Path: /usr/share/java/itext-1.4.5.jar But on doing $ jar cmf … |
| | Hello, this is my first post here and I noticed that other people have been struggling with this assignment too. It is the mortgage calculator program for UOP PRG420. So I am sure you all are probably about sick of this by now, but I need help. The book is …  |
| | Compared to javascript's power, i think xslt is so weak. i prefer parsing xml document to whatever html representation using javascript and i cant see any use of using xslt for that matter. What do you think? |
| | [ICODE]import java.util.Scanner; public class lab3 { public static void main(String[]args) { int floor; int rooms; int occupied; int totalRooms; int totalOccupied; int totalVacant; double occupancyRate; Scanner keyboard=new Scanner(System.in); System.out.println("Please enter the number of floors in the hotel: "); floor=keyboard.nextInt(); while(floor<1) { System.out.println("The number of floors cannot less than 1, please … |
| | Hey guys, I want to make a program copy output from a Command Prompt window, any idea how I can accomplish this? In my program I want to have a console type menu so the user can watch what is going on. Thanks PO |
| | Hi, I want to show running time in java Please write java code for me. thanks in advance.  |
| | Hi Guys, I am trying to get a program I made to auto-start on my computer, but I don't wanna use the "startup" folder. How do these other programs automatically start? I went to my "msconfig" and then to the startup tab and found references to "HKLM\SOFTWARE\Microsoft\Windows\CurrentVer..." and I looked … |
| | Hi, I have web app deployed on weblogic 9.2. There are several reports, each having a input jsp, a output jsp, a java support bean and a export page to export output generated to excel file. The user feeds input through input jsp. The output jsp reads ip parameters & … |
| | [code] package Sorting; import javax.swing.JOptionPane; public class Sorting2 { public static int s[] = new int[100]; public static void main(String[] args) { String ask = ""; for (int i = 0; i< 5;i++){ ask = JOptionPane.showInputDialog("Enter: "); s[i] = Integer.parseInt(ask); System.out.println(s[i]); } for (int x = s.length-1; x>= 0; x--) … |
| | Hi, How to add image to Jwindow. Here is my code: import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.text.*; import java.io.*; class Project4 extends JWindow { Container container; JTextField jt; JButton jb; public Project4(String st, final Image image) { container = getContentPane(); container.setLayout(new BorderLayout()); //JTextArea jtp = new JTextArea(st,10,10); //container.add(sp); …  |
| | Can anybody pls tell me how one servlet can conrtrol different functions..like if user clicks on login then the servlet should be redirected to exectute login code, if clicks on add then respected page should be called and executed..  |
| | Hi, I am developing an application to generated Jasper Report. I am using Netbeans 6.5, jasperReport 3.1.3. I am developing it using Visual web JSF. My JSP file is [CODE] D:/Programs/Java/JasperReports/EmployeeReport/web/Page1.jsp [/CODE] My report file is stored in [CODE] D:/Programs/Java/JasperReports/EmployeeReport/web/WEB-INF/reports/employeeReport.jrxml [/CODE] I have used following statement to specify my source …  |
| | hello. i have a problem running my very first applet (im just converting my previous application to applet). i tried to follow the instructions i found in the manuals, both the one given by my prof and the ones i found in the web, but unfortunately my program wont work. … |
| | Hello, I need to write a program that holds a multiple product inventory. Using an array to store the items. The output should display the product info, one at a time. In addition, I have to include the Total Value of the entire inventory. My only problem is, the total … |
 | Hi all, I would have a question. I know that I should (or must) respect the encapsulation rule (as one of the main three Java features) but what about if I have some "Data Structure"? I mean something like "struct" in C/C++. So if my class contains only data (not …  |
| | Hi, [B] I am trying to write a simple java application that detects motion. The application gets its images from a webcam with the address:[/B] [url]http://studiocam1.disp.duke.edu/jpg/image.jpg[/url] (you can watch the live video feed at: [url]http://studiocam1.disp.duke.edu/view/index.shtml[/url]) [B]My current plan is: (I have little experience, so it may be wrong)[/B] 1. I … |
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| | Hello folks, I m trying to simulate the RSA algorithm. This is some of my code: [ICODE] System.out.println((int)Math.pow(6, 5) % 119); System.out.println((int)Math.pow(41, 77) % 119); [/ICODE] The first results in 41 while the second results in -9 when the expected shud be 6. Whats wrong? |
 | Dear Members I am having a problem in Java and I am pasting the code and the error message please tell me where is the problem and aslo tell me any directory that can guide me about frequent error messages and their solutions. here is the code. import javax.swing.*; import … |
| | hello everyone, im trying to make a theatre program and im at a dead end so im hoping for some help please. if someone can help see my problem clearer or post some sample code it will be much apperciated. the problem is i need to create a Seat class … |
| | Im storing prices in pennies e.g 399 but i want it to be displayed e.g £3.99p how to do ? i used integers? |
| | Hey, I'd like to write an application (in java, ofc) that would be able to connect to an LDAP server, with authentication, using sessions. Are there any libraries I could use to do so out there? Open source ones would be best, and the rule KISS is a priority ^.- |
| | I am need a little guidance here as to how I am to go about using a static method to read data from a text file. I know how to use a static method to write data to a text file, now I am wondering how to use a static … |
| | Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize(); Java Sun's site is down right now so I can't check but I'm guessing this is an old method since according to Eclipse, the method doesn't exist anymore. So my question is, are there any other ways to do the same thing? |
| | I am trying to implement a live support chat application where users can chat with customer service for support or general information. I'm having problems trying to figure out how to go about implementing it. I was thinking the best way would to be to use servlets to pass the … |
| | Okay... public void reverse() { Object temp = new Object[INITIAL_CAPACITY]; for(int i = 0; i < size; ++i) { for(int j = size; j > 0; --j) { temp = data[i]; data[i] = data[j]; data[j] = temp; } } } this code does not reverse anything...I'm losing my mind here. … |
| | Hi All, We are working on ‘Siebel on Demand’ (software as a service) CRM. We are using web service to communicate. We have WSDL files and we generated the code using Axis framework that comes along with Eclipse. We are able to login and logoff to the CRM through web … |
| | Hi all, i start to work on chat utility on my company email application product. here i populate able to populate chat grid like gmail in my mail application product. in which two text area , here i able to submit chat text whatever user has entered, right now i … |
| | Hello, I was hoping that someone might be able to help me with this program: [code] import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.text.*; import java.io.BufferedReader; import java.io.FileReader; import java.io.IOException; import java.io.FileNotFoundException; public class CustomerInfo extends JFrame implements ActionListener { //construct components JTextPane textPane = new JTextPane(); //initialize data in … |
| | Hi, I am looking for a source code formatting tool that can format jsps and can be integrated with eclipse 3.3.x. Does not matter if it is a freeware or shareware. Have searched all over the web but have not found one that fulfills the purpose so far. There is … |
| | Im new to this forum and the programming language that im currently using is java. And i think i might need some help, advice here, and hope this is the correct place for me to post my question. If certain question i ask are not supposed to be posted here, … |
| | im creating an IDE for jswing what i need is the user must drag and drop swing controls ex: (TextField, JList ...) into a tab in tabbed pane dynamically hw to do this.... |
| | Hi Guy, I'm having problems accessing some attribute values stored in DOM. I have an application form....on page 2, I use some javascript on page 2, where the user can add a number of accounts, and in a section below the add account, it displays the accounts in real time. … |
| | hello folks. I m trying to call an exe from java code. [ICODE] public void MyClass{ public void run(){ Runtime rt = new Runtime ().getruntime(); Process p = rt.exec("c:\mylexicalanalyser.exe < SampleInput.txt "); // } . . p s v m(){ new MyClass(); } } [/ICODE] mylexicalanalyser.exe was created by flex … |
| | hi, I get above exception for the following code. [CODE]public void actionPerformed(ActionEvent e) { try { JComboBox Oone =(JComboBox)e.getSource(); String item = (String) Oone.getSelectedItem(); //lbl.setText(item); System.out.println("selected item is:"+item); String command = e.getActionCommand(); if(command.equals("Cancel")) { System.exit(0); } if(command.equals("Next")) { // frame.remove(tab); check chk = new check(item); //frame.setContentPane(tst1); frame.setLocation(250,150); frame.setSize(500,200); frame.setVisible(true); } … |
| | Hi, We no that their no support for Pointer in Java as in C and C++. So how can we print the exact location of a varaiable in java? Shahab |
| | I am trying to write a program that calculates the surface gravity on each planet in our solar system. I have the printing of the results assigned to a static method. However, I have a problem. There are two for statements I am using in this program. The last for … |
| | I use maven to build my project, and i tried to modify an existing pom.xml to compile my project, seems like it's not really compiling as it detects that no sources to compile. As a basic start of learning pom.xml, where can i start from? |
| | Need some advice, help and guidelines here regarding this topic. How can i use the jar utility to unpack the jar/war file so that i can inspect one particular package and return a list of the classes within that particular package? I need to progress further from that point onwards … |
 | [B][I]Hi all, i have to download a file from a server automatically without any manual interaction. I dont know whether it is possible. Any one of you know the solution for this problem please send me the code. Thanks Hidash[/I][/B] |
| | hi, iam trying to create phone directory as a seperate Jframe. there is a button in the main JFrame that leads to the seperate Jframe. the seperate Jframe contains JList which includes names and numbers. when click on any name from the list, this name with the number should appear … |
| | Dear friends.. I working on a Project..here i have to let the user to type in respective languages(hindi,tamil,kannada etc...) I have done this by passing the user input to a javascript file.. but current due to some changes..i need to change that.. I have to do that in some other … |
| | Hi People, I am trying to run this file but I am having trouble getting the program to incorporate the gif file that I need. Here's the program. // Demonstrating JDesktopPane import javax.swing.*; import java.awt.event.*; import java.awt.*; public class DesktopTest extends JFrame { public DesktopTest() { super("Using a JDesktopPane"); JMenuBar … |
| | hello ive already written the scoreboard and tictactoe now i need write the GameUI.java this involves using collections framework, however in which I'm struggling in. If anyone could start me off, help me out, what so ever would be very appreciative. Fran |
| | can un help me to create a program that used panel and frames or plz create a simple sample program that used panel and frames so i can study on it.thnxz |
 | I have the eclipse for Java developers, and I have the MinGW that's distributed with Dev-C++. I just want to know what downloads need to get from the update manager of eclipse, I also don't know how i set it up to use the compiler that came with Dev-C++. I … |
 | Hello, almost done with the Sudoku Solver but dealing with a couple last glitches in the solve method that supposed to use a backtracking algorithm. It is printing out some weird values and outputs. I've got the program printing out the unsolved puzzle fine but the "solved" puzzle is nothing … |
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