32,199 Topics
 | |
 | I have a problem about loading/saving ArrayList from/to file. I've searched some thread about this but it's not ok, because the demo used ArrayList<String> but i used ArrayList<Student> with Class Student [ICODE]public class Student { private String id; private String name; private int year; private String genre; private String course; … |
| | My attempt to write a recursive method to produce the results of the number of combination where x=13 and y=52 and Combination (y, x) =..... When I use small numbers (e.g.: 2,4) I tend to get a result only when I blank out the 3rd if statement. The formula used …  |
| | Hi all, I've created a GUI layout for what I am supposed to do. I have 2 combo boxes in the GUI and both serves the same function. The both of them needs to be able to drop-down the list of files from one of my folders. Hence, I just … |
| | i was wondering if its possible to change the look of the buttons? [url]http://peecee.dk/index.php?id=80239&noresize=yes[/url] the left one is how it looks in Netbeans and the right one is how it looks when i run it. i dont like the one to the right :/ is there any way to change … |
| | Hi i have a requirement to read a text file where field positions are specified and make use of that data to insert into tables. Please refer to the data in the text file below 1234 HEDEPT 12-3-2009 12-03-2009 yesno yes A [email]hello@hello.com[/email] 12 y12 1234 HEDEPT 12-3-2009 12-03-2009 yesno …  |
| | hello everybody; i want to know that how i will open another gui when i click on a button?? thnx |
| | Hello, I want to use a JTable for displaying data loaded from a .txt file. The problem is that I don't see any methods for inserting a row. The code NetBeans generates is this: [code=java] jScrollPane1 = new javax.swing.JScrollPane(); tabel = new javax.swing.JTable(); label1 = new javax.swing.JLabel(); jButton1 = new … |
| | Hi there.. In sleep(5000) what type of data is 5000??? Is that an integer or byte or something. Thanks in advance |
| | [code] public class TEST extends JFrame{ ... blah, blah..... private void launch(){ setBounds(200, 200, 100, 100); setDefaultCloseOperation(EXIT_ON_CLOSE); JPanel greenPanel = new JPanel(); greenPanel.setSize(70, 70); //<---- xNot resize the greenPanel greenPanel.setBackground(Color.green); JPanel yellowPanel = new JPanel(); yellowPanel.setSize(50, 50); //<-- xNot resize yellowPanel in greenPanel yellowPanel.setBackground(Color.yellow); greenPanel.add(yellowPanel); JPanel bluePanel = new JPanel(); … |
| | Hi guys; Just like I said in the <title>, How can I install JBullet in Netbeans? Do I need to write the Monotone commands? 1:0 case:1 then how do I get the mtn commands, is just because it shows this output<< "mtn" is not recognized as an internal or external …  |
| | Hi I am trying to write a program that asks the user for a 2 digit number and then takes that number and prints out its english name. ex: 45 Forty - Five The problem I am having at the moment is that I cant figure out how to seperate … |
| | This is what I have so far. This is a two player game. I need to make it a one player game (player vs. computer). I am also trying to make the computer smart.. for example, if there is an open corner, then it should take that spot. Basically, the … |
| | i have used the XMLEncoder to put my list of clients details into but am wondering how i go about retrieving information from the xml files say for instance if i wanted to show all clients who were entered on a specific date? so far i have. public void dxml(){ …  |
| | There's this rectangular polygon (all angles are 90* or 270*) which happpens to be convex as well and this rectangular polyline which intersects the polygon on two occasions. The polyline thus splits the polygon into two new rectangular polygons. Is there an easy way to obtains these two polygons in …  |
| | Hello, I am trying to get an image and place a rectangle on top of it as an overlay. So, the image has a different hue as well. Something like this: [URL="http://img215.imageshack.us/img215/8482/picpmf.png"]http://img215.imageshack.us/img215/8482/picpmf.png[/URL] For the overlay: I am currently using this override method on JLabel. It doesnt look that good [CODE]public … |
| | [CODE]/** Generates the n'th Fibonacci number */ import java.util.* ; public class FibonacciGeneratorTester { public static void main(String[] args) { System.out.println("The 1st Fibonacci number is: " + getFibonacci(1)) ; System.out.println("Expected: 1") ; System.out.println("The 3rd Fibonacci number is: " + getFibonacci(3)) ; System.out.println("Expected: 2") ; System.out.println("The 5th Fibonacci number is: " …  |
| | Hello Members, I have three balls(all JPanels) bouncing in a JFrame. Following are the files: BouncingBalls.java: [CODE]import javax.swing.*; import java.awt.*; class BouncingBalls extends JFrame { public BouncingBalls() { setResizable(false); setSize(400,400); Ball ball1 = new Ball(); Ball ball2 = new Ball(); Ball ball3 = new Ball(); ball1.add(ball2); ball2.add(ball3); getContentPane().add(ball1); setVisible(true); Thread … |
| | hi everybody,,, please i need your help in my project if you don't mind my project is to create an array with size of 10 that allow you to inter 10 students, their id number and thier marks and show the average of the marks as a,b,c,d,and f thats it,,, …  |
| | Greetings So i'm trying to figure out how regex works and already run into a roadblock. I figured out the easier ones, if a string only consists of numbers or letters. But these required a little more thought it seems. These are three random linen that i need to check … |
| | Hello i am new here, i want to ask about a problem of mine. I have made a server code, so i can send commands from other program C# i made that but my problem is when i start the java program because is Loading. The Server is starting at … |
| | [CODE] import java.util.* ; public class CurrencyConverterTester { public static void main(String[] args) { Scanner scanner = new Scanner(System.in) ; System.out.println("How many euros is one dollar?") ; String input = scanner.nextLine() ; double rate = Double.parseDouble(input) ; CurrencyConverter converter = new CurrencyConverter(rate); boolean done = false; while (!done) { System.out.println("Dollar … |
| | Hey guys, I got such great help last time I decided to come back for more :). Hope I'm not bothering with these questions, my teacher isn't much for being nice or explaining.. Right now we are getting into methods, I know that they aren't that difficult but I for … |
| | I can not figure out why my code is reading in data to my vector in funny ways. I have added the input file and necesary class to test. It seems to be skipping values in the input file and also adding things to seperate places in the vector instead … |
| | Hey guys i have been told to do this Bank account program as you can see the description below, what i have so far is a program that i can create the bank accounts and delete them within the Frame, what i cant get working is the withdrawing the balance … |
| | what does this sytax /statement mean if( r>=0 && r<=5){ rating =r; } |
| | I am facing this problem where one thread keeps adding packets which it receives from the network to linkedlist. And the other thread retrieves it from the linked list. The below is the code of the Thread which keeps receiving the packets and add's them to list. [CODE] private class … |
| | I created a piece of code that simulates a pendulum with the gravity(assuming no friction or resistance). However, it is not as smooth as I want it to be. So.. does anyone know what I can do to make it smoother? [CODE=java] import java.awt.*; import java.awt.event.*; import java.lang.Math; import java.lang.Runnable; …  |
| | Hi, I'm reading this book about Java right now and in it was this example so I wrote it off and tested it... I get the error "Exception in thread "main" java.lang.NoSuchMethodError: main" and from what I've understood it's because I am missing a main class... Here's the deal though: … |
| | Hello Daniweb. I am trying to make an application for a ATM machine (class homework). This is the schematic that I followed [url]http://www.screencast.com/users/haxtor21/folders/Jing/media/303e583a-8f90-46f3-8ed1-a35dde2200bb[/url] My issue is that I'm trying to access a text file and search for a account ID. After the account ID i am doing a nextDouble and … |
| | I'm doing a phone number conversion program. I created a method to convert the letter to numbers, and a method to format the phone number(dashes after 3 and 6 numbers). Both methods return a value. I don't want to post the entire program, but the calling method in the main …  |
The End.