31,001 Topics
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| | I've been writing a piece of code that will use a brute force approach to find 50 exponential equations that fit 5 points (x,y) that i've entered. The code is fine and works without a glitch.. The problem is when i try to make it keep a record of the … |
 | Hey Im having a hard trouble drawing in a Java window so if there is a plugin that shows the coordinates in a Java window when I hover my mouse over that spot it would make my coordinate easier. |
| | I really need help with a project that I have to write for my intro to Java programming class. I have absolutely no idea what to do or how to do it. I would appreciate any help or starts on the code or maybe, just maybe, a code for this … |
| | Hello all, I need to make a PdfPTable with some cells being split or merged into one. The problem is that I can't seem to find a way of doing that. Could someone please help me with this? I spent the last hour on Google and couldn't find anything.. :( … |
| | Hello i'm having a problem with a program. Let me tell you first what program should do. The program should allow the tutor to enter in the various marks which the students have been awarded, until the tutor enters in a mark exceeding 100. At this point the program should … |
| | In an assignment, I have to use four different files in a single program. I know doing so has something to do with inheritance (which we're studying now), but I don't understand how to write each file to use the others. How do I use multiple files in this single … |
| | hello..everyone i m new to this website .i need your advice for project topic.. as i m begineer in java.. plz suggest some gud topics.. waiting for your reply... plz help me.... |
| | Having problems with completing this code to a working program and running it. What is the final value of sum? What is the value of i when the loop terminates? [CODE]public class SumLargestToSmallest { int n = 2147483647; float old_sum = (float) 0.0; float sum = (float) 1.0; // already … |
| | Hi all, I want to grab frames from video. (I want multiple frames from a video) using Java. I have tried with the code that is there on sun site. but it doesn't work(as it is for grabbing frames from web cam). If any body knows then reply asap. Thanks …  |
| | I am having a project that I have written in Java and now I want to convert that into .exe file so that it can be run on any windows platform. My project is a database connectivity project and I have used Mysql as the backend application I want that … |
| | [B]This is a homework question[/B] I am attempting to write a hash function that will evenly distribute 20 randomly selected census name into 20 buckets. I may have up to three collisions of two each. [CODE] public int hashCode(Contact c) { // TODO Auto-generated method stub int result = 0; … |
| | Hi all! I'm new to Daniweb and to programming. I'm learning Java with the book Java how to program 7th edition. I'm stuck at an exercise where I'm supposed to create three objects that each inputs an hourly rate, number of hours, and a name for the employee given by … |
| | these are the classes that i am going to add to my jar file: TestRegform, LogIn, LogIn$AccountInfo, and regForm. I have manifest.txt that contains: Main-Class: TestRegform (new line) then I typed this in the command line: D:\Project>jar cvfm Registration.jar manifest.txt *.class then, these came out: added manifest adding: LogIn$AccountInfo.class(in = … |
| | Hi all, I am in my first Java class at the local community college but my class is online and my teacher takes DAYS to respond via email. I need some help with my homework and thought I would try here. I'm not looking for someone to give me the … |
| | Hi, first post on the site and I hope I'll explain this properly: I'm tasked with creating a TicTacToe Applet using a JButton array. What I can't figure out is the problem I'm having with either setText or getSource (last bit of code). Can someone point out what I've done … |
| | Good day! I'm a newbie in java and I'm using Netbeans 6.9.1 as my IDE. I want to connect the system that I'm developing to the MySQL 5.0 database in the WAMP installed in my computer. I already configured my MySQL by following several steps I found in netbeans.org tutorial. … |
 | Ok, so first off this code is insanely messy and very very long. So if anyone has any ideas on how I can reduce all the variables and make it just run nicer that would be nice. I have been trying many different types of layouts and saving forms and … |
| | Hi, I have write a method to save amounts, the method has 1 argument which is where the amounts returned by a toString should be saved as text. I have no idea what to do and my searching on google or text books has been not helpful :( [CODE]public void … |
| | I am trying to change a program from an IF loop to a WHILE loop. The program started in Ch.05. It was modified in Ch.06 to an IF loop & now must be changed to a WHILE. I got it down to 2 errors and am totally lost. Maybe a … |
| | I NEED TO KNOW HOW TO GET THE CHOSEN RADIO BUTTON.MAYBE THE COUNTERPART OF getText FOR RADIO BUTTON... I HAVE ONLY MALE AND FEMALE. |
| | hey guys, i have been asked to create a little web service. i have a very little understanding of how web services work but as far as im told is that all of my GUI has to be on client side and the logic of the program needs to be … |
| | Hi all, my problem is that i want to block my main frame when i call a JDialog! i try several things but cant! I use this to call the JDialog [CODE]public void showAboutBox() { if (info == null) { info = new Informacion(this);//call my jDialog info.setLocationRelativeTo(this); } info.setVisible(true); }[/CODE] … |
| | Hi I have to develop an algorithm visualization tool for my project. I divided my tool into these 4 modules below: [QUOTE]The tool will be divided into 4 modules: -The GUI -The Visualisation module -The Calculate module -The Compile module The GUI the GUI class is the class that forms …  |
| | [COLOR="Green"]Hi guys Can anyone show me some pieces of pseudo code to show how to drag the shape to move to anywhere when the mouse is released? Thanks heaps[/COLOR] |
| | Hey everyone! So, I'm making a hangman game. I'm at the very beginning stages so I just have a String array and just to make sure it works correctly I want to print a random word from the array - simple, right? I am running into an error - the … |
| | after compiling it this errors came out, what do u think is the possible solution for this? thanks! Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 9 at accountinfo.<init>(Main.java:73) at accountinfo.main(Main.java:142) [CODE] import javax.swing.*; import java.awt.*; import java.awt.event.*; import java.io.*; class accountinfo implements ActionListener { private JFrame f3; private JButton jLogout; private JPanel … |
| | Sorry about the double post but i dont know if you can delete posts? Anyway I need to have a circular linked stack where after 5 pushs the 6th push goes into front and replaces the data starting at front and going back. So theoretically if I put in a … |
| | public int getInput() throws IOException ........more codes here in between return activity;//activity is an array The error is this: '.class' expected |
| | i m not very clear about constructors,and different types of variables like:instance variables,local variables,etc,setter and getters. can u plz help me to distingush between all of them with examples? |
| | Hey, I've been working on a space invaders program for a class, and have gotten all of code correct except the collision that removes the sprite entity upon being hit. the RowofAlien code [CODE]import java.awt.Graphics; import java.awt.Image; // You do not have to throw an exception if an index is … |
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