36,051 Topics
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| | Hello, I have built a GUI for the world of Zuul, the input can be taken by pressing buttons and enetering text commands. the output is both a change of images and text output using System.out.println(). When I press the directions buttons, the central image changes correctly. but the script … |
| | I tried querying database records using pass variable from ibatis servlets it works fine and fetch the records if correct pass value is entered but return error message if wrong pass value is entered eg <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE sqlMap PUBLIC "-//ibatis.apache.org//DTD SQL Map 2.0//EN" "http://ibatis.apache.org/dtd/sql-map-2.dtd"> <sqlMap namespace="Display1"> <!--- quer …  |
| | hi..! i'm using xampp and i want to take backup of my database using java code.How can i do that? |
 | Jython is a version of Python that can use the extensive Java library. Jython uses Python syntax and avoids the rather ugly syntax (at least for Pythonions) of Java. Here we apply it to bring up an image from a file. |
| | Hello,,, How to make the GUI frame visible? I have looked and this is what I came up with: Interface gameInterface = new Interface(object1Instance, object2Instance, this) gameInterface.getFrame().setVisible(true); is this the way it should be? I have refrained from using a singleton class because I wanted to pass instances of other … |
| | Im using a Mac, lwjgl, and Java 7 (Execution enviroment: 6). Hey Im trying to build my project and It gives me a message that says: A fatal error has been detected by the Java Runtime Environment, It works fine when I run it in eclipse, and the execution enviroment …  |
| | Hello can i ask,.because i am a student of java programmer i want to asking how to fast learner of the program,.please help me i want to be a proffesional programmer,.thanks,..  |
| | Hello I am trying to write to a text log file for my world of zuul game. I have created a Class Logger to write into the file, here is the code: import java.io.BufferedWriter; import java.io.FileWriter; import java.io.IOException; public class Logger { private BufferedWriter out; public Logger() throws IOException { … |
 | Hello Friends, Can anyone tell me how to increment a String variable by 1 in database. Suppose the database table has value as SL1000 and we want the next value to be SL1001. What should be done for such type of requirement in java.  |
| | A person wishes to add a NEW Job to the database. A `Combobox` list the existing employers already in the database for the new Job to be added against. But if an employer is not present customers have the option click on a button to add an employer. Once added …  |
| | how can i take 1's complement in making a java program? |
| | Dear all, This example is compleet ,but wont load the file. Can anyone help me with puzzle?hier is the code: Class ATMWindow import java.io.IOException; import javax.swing.JFrame; public class ATMWindow { /** * @param args the command line arguments */ public static void main(String[] args) { if (args.length == 0) { … |
 | HI peeps, I have a question about the following program: TempScale.java: public enum TempScale { CELSIUS, FAHRENHEIT, KELVIN, RANKINE, NEWTON, DELISLE, R�AUMUR, R�MER, LEIDEN }; Temperature.java public class Temperature { private double number; private TempScale scale; public Temperature() { number = 0.0; scale = TempScale.FAHRENHEIT; } public Temperature(double number) { … |
| | I have installed Eclipse Juno. I want to run jsp and servlet program using Eclipse IDE. But while adding new Server of Tomcat, i am unable to do so. In the add new Server option it does not show apache nor do other servers. Please help me how to sort … |
 | *I know that this may seem like a re-occuring question, but I can't seem to find anyone who has asked this question in a very succinct manner. They always seem to beat around the bush, instead of clearly expressing themself.* **Here is the situation:** I have an application called S.M.A.R.T. …  |
| | Alright Im new to this forum so lets hope this goes well, I have decided to learn Java and I started with the lwjgl, I have the exact class and code as posted here: [lwjgl (display)](http://www.lwjgl.org/wiki/index.php?title=LWJGL_Basics_1_(The_Display)) When I run the code I get an error message that says: `JavaVM WARNING: … |
| | I am trying to create a GUI app were the user inputs an, item name, price, and discount rate. The button should calculate the two numbers and display the discount price. I am stuck on the action listener and making it preform the action/calculation correctly. I am a pretty novice … |
| | Hi everyone. I have to do a simple Sokoban game, but I am new in Java and I really don't know how to begin. If you can help me with some advices or tutorials I'll be very thankful. |
| | Any tutorial step by step yo provide modular application development and dynamic deployment for Net Beans by using OSGi with Felix? |
| | **BACKGROUND** There is a heavily obfuscated online applet with encyption (referred to as applet), there is a program (referred to as program) that reads and modifies the online applet for hacking purposes far more obfuscated than the applet, and then there is me. In a nutshell: applet's main class defines … |
 | This is based on John Conways Game of Life, a simple yet awesome code that simulates life. Rules are simple, if a cell has less then 1 or more then 4 living cells next to it, the cell dies. An empty cell with exactly 3 living cells next to it … |
 | Hey there, I have a jsp page and a checkbox inside it: <input type="checkbox" name="some" onchange="test()">Check me</input> I also have this function: function test() { out.println("checkbox checked status changed"); } I want the function test to be invoked every time I check/uncheck my checkbox. It is not working. Since I … |
| | I Dont know the word of JAVA,, What Is the JAVA ? (details)  |
 | Hello im braking my head with a problem, im using netbeans building a web application using java, jsp that handel a database with hebrew fields. String cityTable = "CREATE TABLE IF NOT EXISTS hebrew_test.table (" +"id int(11) NOT NULL AUTO_INCREMENT," +"en varchar(30) NOT NULL," +"he varchar(30) COLLATE utf8_bin NOT NULL," … |
| | I am trying to use custom tags in ruby..i am a newbie to ruby.I hav developed in java before and i am myself a web developer.I have made custom tags for JSP pages but i m not sure wether we can form custom tags in .erb files also..???  |
| | okay I have it almost complete with one issue: When the report runs it is suppose to add up the property values for each agent and only display the total value of the properties. like:COMMERICAL FARM LAND RESIDENTIAL 101 600000.00 105 30000.00 106 200000.00 107 1040000.00 110 250000.00 but for … |
 | Hey all.. Happy new year .. I am insearch of converting the android application(apk) to java desktop application. I dont want to run it in some sort of emulators. I want to convert the apk file into java(J2se) desktop applciation and run it on my desktop. Can you suggest some … |
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| | Hello everyone happy new year to all. i want get length of only fractional part of number in java script function. example if number is 4.321 then length of fractional part is 3. please help me. thank you |
| | Hello, After a relatively small C++ background, I decided to learn some Java. I want to be able to pass two variables from my main class, evaluate them in another class, and return that answer to the main class. I have all the code done for it pretty much, but … |
| | [import java.util.Scanner; import java.util.Random; public class HangmanMy { public static void main (String[] args){ System.out.println("Welcome to the game Hangman :)/>"); Scanner input = new Scanner(System.in); boolean done = false; String guess; String guesses = ""; char letter; int wrongGuess = 0; StringBuffer dashes; System.out.println("Choose a category -> places / games … |
| | Do you have a sample code suggestion to predict illness to a blood type? Blood type is an input from the user and when the user inputs the blood type it would give you all possible illness for that blood type. Is that possible? Am using netbeans and not sure … |
| | Hello, I'm Mirza and I'm in the first semester of an IT university. I like to experiment with Java, and occasionally I run into problems. Now, I've been visiting daniweb for quite a while now, and I've always found solutions to my problem, but this particular problem I just can't … |
| | link to old post shows code: http://www.daniweb.com/software-development/java/threads/440001/output-incomplete-text-file program to: A. Develop an application that reads your listings.txt file, analyzes the property listed per agent, and outputs a report to an agentreport.txt file. Your application should do the following: 1. Prompt the user for the name of the input file (listings.txt). … |
| | I am finding it difficult to update the `JTable` when I enter a person's name in search button. The program compiles correctly without any errors, but in `SearchActionPerformed` event when the search button is pressed an empty table comes up. Where without search, the table is full of values from … |
| | I've got this exception after running my project Really don't know what to do! SQLException: No suitable driver found for jdbc:derby://localhost:1527 I've add derbyclient.jar to Library.but I didn't get any different result.I also don't want to create a new database. I wasn't able to attach it here but here are … |
| | Hello everyone.. I want to learn JSP. But don't know any online portal for study about JSP. If any one knows any place where i can learn JSP. where i can learn without any charge. Please make it shre with us. |
| | Hi, I need to generate a dynamic bar graph in excel.The code is in java and related technologies.On my site when a click a button 'generate graph for selected values' i should to get a bar graph in excel.Since the values selected can change and also the data associated with … |
| | hello i'm trying to code 'Save Button' which saves all the information in a file this is what I did: private void SaveButtonActionPerformed(java.awt.event.ActionEvent evt) { java.io.File file=new java.io.File("File.txt"); try { java.io.PrintWriter output = new java.io.PrintWriter(file); output.print(this.DateObject.getText()); output.print(this.NoteObject.getText()); output.close(); } catch (FileNotFoundException ex) { System.out.println(""); } } the problem is if … |
| | HI all, I am having a little problem with the following program. Here are the files: Player.java: import java.text.DecimalFormat; public class Player { private String name; private double average; public Player(String name, double average) { this.name=name; this.average=average; } public String getName() { return name; } public double getAverage() { return … |
| | Hi, I have something wrong at table_academicMouseClicked() method which results me with a java.lang.NullPointerException error. basically trying to compare the surname in Jtable and look it up on the database to select the corresponing record so that I can set the label to the value from database. So when a … |
 | Hello, I have some java code I want to port to C++, and first class in the Heirarchy has me stumped. I'm trying to port a simple parsing framework as an exercise to figure out how it works internally, and almost everything in the framework requires, uses, or is `PubliclyClonable` … |
| | Hi, i'm making a server client piant program that send what is painted on the server to the client(and vice versa). this program is supposed to use instruction based transmission of the image. i have a server client program that sends what is drawn on the server to the client … |
| | Hello.. I created a project in netbeans. I have a JFrame form. It has a JTable in it. I want to insert the database data in this JTable. Can you please help me. I would appreciate if you show me a sample code. Please dont tell me to add rs2xml … |
 | ***How To UpDate JTable on Delete Command and if given id don't match with database then a message show "id is not available " My Codes as follows:-*** private void Sf_Reg_delete_ButtonActionPerformed(java.awt.event.ActionEvent evt) { String str2 = JOptionPane.showInputDialog(null, "Please Note that this Reg No is not generated again : ","Enter Reg … |
| | This is my program so far: package allin1; import javax.swing.*; import java.awt.event.*; import java.awt.*; public class Allin1 { JFrame frame = new JFrame(); JPanel panel = new JPanel(); JButton b1 = new JButton("Exit"); public static void main(String[] args) { panel.add(b1); //THIS IS THE PROBLEM?? } } The error I am … |
| | I am unable to execute the editProfile() method in MainMenu class. The purpose of the method is to be able to extract the bean values and display them on the empty textfield. I am not sure if i did it correctly. any recommendations for any changes to editProfile() method. public … |
| | i'm trying to show date in a text field this is what I did java.util.Date date=new java.util.Date(); this.DateObject.setText(date); and its wrong... please help & thank you. |
| | I was trying to set a UniqueIdentifier based on Long. The objective was to give a certain custom Object a unique identifier in order to allow me to store them in a hashmap. I saw someone trying to use the most significant bits. So I realized that the addition of …  |
| | What's wrong with the following code? public void fillByteArray(InputStream s, byte[] b, int offset, Integer numReads, int readAmount){ while (numReads > 0){ s.read(b, offset, readAmount); offset += readAmount; numReads--; } } |
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