32,204 Topics
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| | *Edit* Just so you know, we are on the chapter in the book introducing ArrayLists *Edit* I am having trouble with this problem. The problem is stated: Implement a class Polygon that contains an array list of Point2D.Double objects. Support methods public void add(Point2D.Double aPoint) public void draw(Graphics2D g2) Draw … |
| | hellow every one im facing problem in my coad wich i tried to understand what is the mistake of my symantic but no progress..... this is the code [CODE] private static void NNA(ArrayList<triple> Graph,String GoalN) { ArrayList<triple> vp= new ArrayList<triple>(100); int index=0;// the index of the nodes in the visited …  |
| | Hi all, I have a situation where am using String conditions(say if(name.equalsIgnoreCase(Arathy)). I want to replace this if-else loop with Switch cases..What way i can do to accomplish this?  |
| | hello all what is the meaning of : "Value@a90653" I just try to print a variable but the result is "Value@a90653" thank you denny |
| | Dear All, I am writing the following code but I am facing some problem. public void actionPerformed(ActionEvent ae) { if (ae.getSource()==connect) { JOptionPane.showMessageDialog(null, "Connection Estabilished"); } else if (ae.getSource()==disconnect) { JOptionPane.showMessageDialog(null, "Connection Disconnect"); } } When I Write this code, compiler compile this code but does not show messagebox when … |
| | hello this is my first time posting so sorry if I make any errors, im currently trying to ad a sliding movement to a tile game im trying to do, the tiles currently move but they move in a jumping motion, ive been trying to use the coordintes of the … |
| | Im creating a calculator that allows users to enter their own Loan Amount, then choose whether to input their own Loan Interest and Monthly Loan Terms, or to choose between a set of predefined loan terms and interest rate in a GUI. So far I have been successful in creating … |
| | Ive created a memory game which has a grid of JButtons, when the button is clicked it changes the ImageIcon background to an animation which shows the front of the card. The problem is that when the button is clicked, the gif doesn't begin playing until the mouse is moved … |
 | Here is my code:- [CODE]/* * To change this template, choose Tools | Templates * and open the template in the editor. */ /** * * @author Administrator */ import javax.swing.*; import java.awt.event.*; import java.awt.event.*; import java.awt.*; public class MyQuiz { int score; JFrame frame; String[] questions = {"Who invented …  |
| | [CODE]package PAyroll; import javax.swing.JOptionPane; import javax.swing.UIManager; import java.awt.Color; import java.text.DecimalFormat; import java.text.NumberFormat; import javax.swing.UIManager; public class EmployeeProfile { public static void main(String[] args){ JOptionPane.showMessageDialog(null,"Welcome to Payroll System"); payroll(); } public static void payroll(){ int conf=0; // do{ String name=""; String add= ""; String contact= ""; String email= ""; String word=""; …  |
| | I'm working on a project that can recursively print out the items from a single link list. The project also require the reverse method should accept a reference to a generic single-linked list. This is my logic for printing the item in reverse: if the element in a node is … |
| | Dear All, I am currently working on a small project whereby I want to use a SOAP client to insert Customer Values in a database. The connection to database class is working, the only problem is that it seems that the Web Service wont communicate with this class. In the … |
| | Hi at all. I'm a new user of jsp and I've a problem. I would execute certain operations every X seconds in my jsp project like check data into mySql DB; I use a TimerTask java class and it's ok. But if I would update the UI inside the run … |
| | Hi guys what I want to do is once the user has entered the id number it displays the results for the particular record. This works fine however what would I need to do to the following code so if the id number does not exist it produces an error … |
| | Right, my program ran perfectly fine with the line [CODE]JLabel headerImage = new JLabel(new ImageIcon(img));[/CODE] But as soon as i put it into a JAR file it has problems, i have searched the inet for soloutions and there isnt much out there for apps, loats for applets though, but none … |
| | Hey guys, I'm trying to create my own personal API (more like a simple way for me to write long codes), and i've run into a snag. I want to create a simple function to detect whether or not I want the consoleWrite() to print out a new line system … |
| | Hello, I have one dataset as one arraylist. In that the columns values are in string as high, low, medium.. so how i display that values as string in c or java? pl reply me  |
| | Hello, everyone! I am trying to generate a random number with Java, but random with the fix number of reviewers per object.Example: I have 5 reviewers(r(i)) and 5 objects(o(j)), a[i][j] is the evaluation score that reviewer(r(i)) has evaluated object(o(j)), and my question is i want to labeled each object should … |
| | I'm trying to use these icon images for my JButtons, but I keep getting "Resource not found: " [url]http://java.sun.com/developer/techDocs/hi/repository/TBG_Media.html[/url] [CODE] static ImageIcon createMediaIcon(String imageName) { String imgLocation = "/toolbarButtonGraphics/media/" + imageName + ".gif"; java.net.URL imageURL = Test.class.getResource(imgLocation); if (imageURL == null) { System.err.println("Resource not found: " + imgLocation); return null; …  |
| | Hello! Is there any standart Java libaries to interpolate an image? Thanks!  |
| | i was wondering if someone can help me with this Java codes? [CODE]/** * This is a class of Money for us to be able to input an amount and do addition or substraction * to it and display the balance.. * * @author HUBERT JIANG * @version 0.2 */ … |
 | Hello Daniweb, I just created a small program that generates a random integer between a given range then asks the user to guess the number, giving hints like "Too high" or "Too low" along the way until they guess the correct number. I have it all working smoothly, except when … |
| | Hey there, I made a splash screen class and called it in a main class where it operates. In my main class I have the splash screen followed by a menu window. I was wondering how could I make the splash screen appears and then right after the menu window … |
| | [CODE] try { HttpSession hs = request.getSession(); HashMap<String,Item> items = (HashMap<String, Item>) hs.getAttribute("items"); String [] allQty = request.getParameterValues("qty"); String [] itemcodes = request.getParameterValues("itemcode"); // for(String value: allQty){ // out.print(value+" "); // } // out.print("</br>"); // // for(String itemcode: itemcodes){ // out.print(itemcode+" "); // } // out.print(items.size()); int z = items.size(); …  |
| | how should i prepare for company FMS (i.e. finance and manpower solutions) it is coming for placements on 12 march. |
| | Me and my group members are planning to add something different to our program, we intend to put JTextField, but we have no idea on how to start it because some of the tutorials are so hard to understand. this is our program: it is a payroll system: [CODE] public … |
| | Hi guys can anyone tell me if it is possible to sort integer values for smallest to biggest which has been stored in my database as Strings. What I want to do is list my items in an textarea that sorts the numbers from smallest to biggest. Also note if … |
| | Hi i need to make a method that does the example below if the array contains these number -12 3 -12 4 1 1 -12 1 -1 1 2 3 4 2 3 -12 The output should be: N Count 4 2 3 3 2 2 1 4 -1 1 … |
| | Whats the best and easy way to learn JAVA and anyone can suggest a very good and simple website to learn and workout JAVA codes. |
| | i am making a simple bike site using servlets.i have a hyperlink toh a productServlet in menubar..but when i click dat hyperlink.it keep on showing connecting.and page do not load..anyone can tell what could be the reason..i can't show code here.. |
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