36,051 Topics
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| | Hi, I'm having XML content as a string. I'm using W3C dom for getting values from the XML. I've a very large XML file with attributes, elements similar like below [CODE=xml]<Shares> <bookDetails bookName="How to Learn English" bookAuthor="English Writer"> <Chapter chapterName="From Alphabetes" chapterPage="23"/> </bookDetails> <company> <name>test</name> <address>test address</address> <contact>test contact</contact> <C02>10.5</C02> … |
| | Hello All, I have a question related to synchronization in java; there's more like a confirmation. Let's start with the simplified version of my class: [CODE]class MyClass { private List<MyObject> myList = new ArrayList(); public void addEntry(MyObject obj) { myList.add(obj); } public void removeEntry(MyObject obj) { myList.remove(obj); } public double … |
| | Hi, im new to this forum and also Java. Im currrently doing my degree 1st year. My lecturer gave me a question on factorial and im unable to solve it. i need to explain why any number of threads can be executing inside of it without causing interference in the … |
| | Hi all. How would I modify my current program to make it perform the conversion with the main method calling other methods instead of performing the conversion in the main method itself? I have attached a .pdf file that has a list of all the methods that must be used … |
| | This JFrame opens and puts in the empty questions and answers when it starts as it should, but it doesn't print the questionList.size() at line 191. The next button also won't go to the next question which should be retrieved from the text file. I'm not sure if the questionList … |
| | So far my professor has given us code and we basically "fill in the blanks" of the methods below the main code. I've done all the other methods, but am now stuck on the Taylor series portion. The code below is to calculate angles, and one of the methods called … |
| | Hi there, first post! First off, I apologise for asking such a basic question, but I am new to Java (done VB before..) and was wondering if you could please help me out with a little problem I'm having! I have a method that reads data from a text file, … |
| | In one European country there are two types of music festivals national and international. All take place in one or more (sometimes random) days, but all days are in the same calendar year. For the national festival is significant whether or not have jury (that is giving additional prizes). For … |
| | This is my first time trying to use KeyListener and I just need it to move an image over 20 px every time I press the right arrow key. After 400px, it should move down to the next line vertically 'playery.' For Some reason it prints out the console output … |
| | please help need a code tht calculates number of hits and misses in the cache from a adddress file with addresses stored as hexadecimals stored on th hard drive.these hexadecimals should first be changed into binary.. ive read some psuedo codes buh i seriosly dont know were to begin the …  |
| | HI, a pretty frustrating problem arose. I am not going to post any code this time. This should be straight forward question anyways... :) I have a class that contains a constructor with arrays. Also, a methods to add to the array using scanner class. The problem is, I implemented … |
| | Hi, I want a code for opening a particular folder or directory on button click. Thanks. |
| | Hi, I've been learning java, and I have a question about creating an array. Basically, what I want to do is that I wish to create an array with an unknown array length, then ask the user to input values to be stored in the array. The length of the … |
| | Hi everyone, I have an ArrayList containing 40 or so JPanels for a board game developed in Netbeans with java - is it possible to have an event listener or something similar that will "monitor" the ArrayList for any of the JPanels being clicked, rather than having to create an … |
| | I am doing a GUI in swings using Netbeans IDE. I have two frames AudioVideostreaming.java Audiostreaming.java There is button called "Audiostreaming" in AudioVideostreaming.java file. When this button is clicked I want that the AudioVideostreaming.java frame is closed and Audiostreaming.java frame is opened. What code should I include in AudiostreamingbuttonActionperformed() method … |
| | Hi everyone, i need some suggestion regarding the display of the values of two database table in a single JTable. Can anyone help me to get the proper way of how to do it. Actually i need to show the comparison of the two tables in the JTable by displaying … |
| | i have this code. i am trying to set a grid and start at c. it then moves to the next value - 1, so in this case, would move to a 4. However, in my IF statement, i want to put if(position surrounding c == c-1){then change that position … |
| | Hi guys, ive read an article about using PHP with Java here:[url]http://www.devshed.com/c/a/PHP/Using-PHP-with-Java/[/url] but im a bit confuse to get start with this instruction in this article.i pasted getting started page: [QUOTE]PHP doesn't come with Java support turned on by default, so you'll need to recompile it to enable this support. … |
 | This is a simple Search Engine that contains tokenized words as keys, in which they will return values associated with them in an ArrayList. All that is required is a text file from a valid extension. |
| | Hello everyone, I am trying to write to a file what I am currently displaying on the console. I have a bit of code that works fine by creating a list of files based on it's file extention and it then displays it using println: What I want it to … |
| | Hey there!! I have been working on creating a 3D solar system...I am done with creating the planets, adding textures and lighting and putting the planets into an orbit revolving around the sun. The part left is the saturn's rings. Can somebody tell me if it is possible to create … |
| | hy for all . i have to do a new university work about text mining and specialy on sentiment analysis . i have to try to analyze some mails and forums to extract from about what the student are discussin .. i've seen a lot of documentation about this , … |
| | Hi forum, Could you give me some simple 2D array problems to solve? Thanks!  |
 | can anyone give code for a simple java speech recognition program... |
 | hello guys, I don't have a programming question but a mathematical one but need to implement it in a program. I need a formula the will let me find the X,Y position of Circular motion. For example: earth travelling around the sun, I would wanna know the X,Y position of … |
| | how do i create new JLabel() dynamically in a while loop, and add to a JPanel by using the setBounds method. The setBounds work, however, there are other JLabel added to other place. why is this happen? [code]while(condition){ pin = new JLabel(); pin.setIcon(pinIcon); pin.setBounds(Panel1.getImgX(), Panel1.getImgY(), 20, 30); Panel1.panel.add(pin); }[/code] |
| | Hi, i wanted to create a JTextField to receive the user input instead of having the user key in the input through the IDE console. This is my code. Now, my code just runs fine if the user key in the inputs through the console. After running the code, the … |
| | I've been working on this program recently and its been blowing up with errors, every time I work through a bug, more surface. Now I keep getting incompatible type errors at the spots I marked out. If someone could help me sort it out or point me in the right … |
| | Hi folks, Please forgive a bit of a n00b question, but I'm working with the SwingWorker class and want to create a subclass of this which includes an input type, as well as the existing output and progress-message types (so basically I'd have "CTSwingWorker< I, O, M >"). Now, I'm … |
| | [B]hi! i have installed tomcat newly on windows 7.i have got the following error in browser. Please help me out. thanks in advance. [/B] HTTP Status 500 - type Exception report message description The server encountered an internal error () that prevented it from fulfilling this request. exception org.apache.jasper.JasperException: java.lang.IllegalStateException: …  |
| | hey, i have an applet project in the project i am trying to create an applet, applet draws a line line is drawn from coordinates which are stored in mysql database. in my other project which is web project which is created using tomcat servlets i added my applet project … |
| | hello there, this is really urgent, do you know how to convert from a string to AgletProxy ?? i have two classes : Parent.java and Child.java, The Parent.java class, creates a child , passes it its agletproxy while creating it and dispatches it to another machine : [CODE] package examples.help; … |
| | I'm trying to make a digital clock in Java. The program is at the end going to be an alarmclock. So far I've made 3 classes: Main, Clock and Time. Main only creates an object of Clock. Time handles the javax.swing.Timer function for the clock. And the Clock creates a … |
| | hi, i need calc the time that left for a job terminate. for example i know the total of the value and the value that is done per second and minute. with this values i can calculate the remaing time, anyone know the formula that i need to calc the … |
 | [CODE] public int hashCode() { final int prime = 31; int result = 1; result = prime * result + ((temp1== null) ? 0 : temp1.hashCode()); result = prime * result + ((temp2== null) ? 0 : temp2.hashCode()); return result; }[/CODE] I don't really understand about haschodes, yet, so I … |
| | Hi , I have two string which have time in them like one= 11:54:30.360 two= 11:54:30,427 Wht is the best way to get the difference between them Thanks  |
| | Hello everyone. I have some problems in implementing some stuffs about genetics in java. Here's the scenario. A human cell contains 23 pairs of chromosomes. Each chromosome in each pair has thousands of genes. Each copy of a gene is called an allele. These alleles determine the different traits of … |
| | Question Create a class named Package with data fields for weight in ounces (oz.), shipping method, and shipping cost. The shipping method is a character: ‘A’ for air, ‘T’ for truck, or ‘M’ for mail. The package class contains a constructor that requires arguments for weight and shipping method. The … |
| | write a driver program with a main method to read in data for five pets and dispaly the following data: name of smallest pet, name of largest pet, name of oldest pet, average weight of the five pet, and average age of the five pet. also, test to see the … |
| | [CODE] import java.util.regex.Matcher; import java.util.regex.Pattern; public class test_regex { public static void main(String[] args) { String text = "(asdf) (123) (zxcv)"; Pattern p = Pattern.compile("^\\((\\S+)\\) \\((\\S+)\\) \\((\\S+)\\)$"); Matcher m = p.matcher(text); if (m.matches()) for (int i=0; i<m.groupCount(); i++) System.out.println(i+".) "+m.group(i)); else System.out.println("no match"); } } [/CODE] [QUOTE] Output: 0.) (asdf) … |
| | Hello guys, I was wondering is it possible to set an animated Background to a JPanel instead of a simple colored background? |
| | Can someone help me print my BST in level order. Heres what i got so far... [CODE] Queue<BinaryNode<Type>> f=null; while(node.element!=null){ System.out.println(node.element); if(node.left!=null){ f.offer(node.left); } if(node.right!=null){ f.offer(node.right); } if(!f.isEmpty()){ node=f.remove(); } else{ node.element=null; } } [/CODE] |
| | Most people at my college say that Java is easier than C#. Is it true ? On the internet mostly I see are Java apps. !!! Could anyone anyone tell me that what are the applications of C#, 'cause I am planning to a project on this language. Thanx  |
| | I am trying to seperate JTextArea colums as you can see on the pic. How can i do that any idea ? |
| | i have created following program for bipartite graph. But i need little help from you. I have to calculate objective function using Integer Linear programming(ILP). I have create complete bipartite graph.From which at a time from one node only one outgoing edge from member of set-1 and only one incoming … |
| | We already tried setWeight but it seems that it doesn't work, do we have to SET_DEFAULT_EDGE_WEIGHT = 1.0? |
| | [B]TL;DR:[/B] I am asking for help considering the structure on the following code, and advice on code structure in general. The problem in this case is the try blocks, which are messing up the scopes and complicating error handling. I will elaborate a little for the more patient readers below … |
| | A very small problem I am having. Here is an example: A class representing a book [CODE] public class Book { private String title, author; //Constructor for book public Book (String name, String writer) { title = name; author = writer; } [/CODE] Another class called Bookshelf representing a collection … |
| | [CODE]mport java.awt.*; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.ItemEvent; import java.awt.event.ItemListener; import javax.swing.*; import java.awt.*; import javax.swing.ImageIcon; import javax.swing.JApplet; import javax.swing.JButton; public class Main extends JApplet implements ActionListener,ItemListener { //private Image im; // image handler //private static final String IMAGE = "enviro2.jpg"; //starFish tapakSulaiman = new starFish(this); public void init() { … |
| | We have no idea how to start our project regarding Minimum Spanning Tree (Kruskal) we have to implement it on java, i would like to ask what are the useful functions for MST under jgrapht or jgraph? thank you. |
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