36,051 Topics
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 | i want to implement drag and drop on my jsp page..how can i implement this ?using javascript or php or something else ?and how?  |
| | Hi, I am having the C application which I want to access a remote Java Web Service; I have looked for open source SOAP libraries for C and found [CSOAP](http://csoap.sourceforge.net/). However, I am having the following questions/problems with it: 1) Is it possible to access Java Web Services using CSOAP? …  |
| | I understand overloading but what does someone mean by "Overload the increaseRed method with an increaseRed method that accepts a number that specifies an increase factor"? The increasedRed() is as follows: public void increaseRed() { Pixel[] pixelArray = this.getPixels(); Pixel pixel = null; int value = 0; int index = …  |
| | I have to make an applet that gives you 2 single digit integers and you have to multiply and then it will tell you if you are correct. I got it to work but how do I make it continue the same set of numbers until you provide the correct … |
 | I created the GUI to display the monthly mortgage payment for any loan principle at a specific term and rate. The GUI works fine but I have some improvements I can't seem to figure out and I need to display an amortization table. Issue# 1: I am usure how to … |
 | Acronis responds to DaniWeb questions regarding a leak of customer data which, [as we exclusively reported over the weekend](http://www.daniweb.com/hardware-and-software/microsoft-windows/viruses-spyware-and-other-nasties/news/427455/breaking-acronis-blames-technical-issue-for-customer-data-leak), resulted in some information being indexed by search engines and accessible to anyone on the Internet.  Although the leak itself was identified by Acronis on Friday 29th June, the … |
| | I want some **Logical** algorithm to get all possible combination of given string except the palinadromes. Like Input is: ABC OutPut: A,B,C,AB,AC,BC,ABC,ACB,BCA,BAC It can't contain CBA,CAB as it already has ABC,BAC i.e reverse of those. I want to get it done by boolean logic and but it is no where … |
 | Hello Friends. It has been a long time since i posted my codes in the DaniWeb Forum. I have a problem which is really preventing me from moving ahead in the Project. My project requires me to develop a small quiz application with a registration functionality. The registration functionality requires … |
| | Write a Java program that can take a positive integer greater than 2 as input and write out the numbers of times one must repeatedly divide this number by 2 before getting a value less than 2. |
| | Hello guys, need some help with my assignment. Currently i have already done with the Queue and random part but i'm not too sure how to carry on. Can anyone enlighten me. Thx. Below is the scenario Write an e-mail simulator that processes mail at an average of 40 messages … |
| | I have the following problem: Write a Java Applet that will help an elementary school student learn multiplication. Use either Random class or Math.random() method to produce two positive one-digit integers. The applet should prompt the user with a question. The student then enters an answer. If the answer is … |
| | hi everybody, i am 2nd year student of computer science department, and now i am thinking about choosing my main field about programming. There are two choices in my mind either to start learning php development(because it has a lot jobs) or start learning java and become a java developer. …  |
| | Hi guys, I wrote some code for finding the three longest words in a string. The code I wrote seem too complicated, is there a better way to appoarch this? public class Size { public String[] threeLongest(String word){ String[] three = new String[3]; String[] words = word.split(" "); three[0] = … |
| | im creating a program that will convert certain character into its ascii value then i will change the value. for example the ascii value of A is 65 right? but i want to change the value of it into 1 so if i input A the output of it is …  |
| | Hey, Im trying to extract numbers from a scanner, but im having problems extracting them all. Primarily i need it to * read a text file which contains some text and numbers. * go through the file and locate all numbers * differentiate between numbers contained in bracket (3), and … |
| | Hi all, I dont why my code is not detecting the matching words. Firstly Im reading the words from a text file into an array. Plz help me to make this correct. This is my code. import java.util.*; import java.io.*; public class TestRegex{ public static void main(String[] arg) { String … |
| | Right now I'm writing a java program that makes special edits to the hosts file on windows. Some people at work were complaining about it. Anyways, the program is finished everything works great! However I have to run eclipse as admin to give it permission to write in the hosts … |
| | Hi, If I have a value inside the try{} how can I read it outside, is it possible try { int num=0; } |
| | //Hi, //I want to make an application that sends email; the email need to be taken from an oracle database, I had make the email code and it is working succseeful and also I made the coonection to the database in the next class which is also working successfully, but … |
| | Hi, I am trying to read a value which is in a class (in a public void) in anothe class and I couldn't do that, so please can someone reply me and tell me how to do that using these code. public class CDB { public static String main(String[] args) … |
| | how to multiply two integers when one of the integers is user-input ? |
| | I can find some jars like HTMLPARSER and java.net package to access the source of a URL import java.io.BufferedReader; import java.io.InputStreamReader; import java.net.URL; import java.net.URLConnection; public class sample2 { public static void main(String args[]) throws Exception { String data=null; URL location = new URL("http://www.google.com"); URLConnection conn = location.openConnection(); BufferedReader in …  |
| | i having the string array,, String[] strrr=null; String[] aa ; aa=strrr[3].split("\\!"); if i debug this it shows source not found but i want to return from the string if the strrr[3] value having null or 0 ,how to do it,, use above three line of code to check it,exactly what …  |
| | I thought that setting up the PATH variable was a must if we wanted to use java or javac commands on linux (preferably in the bashrc file), but I am able to use these commands anywhere without setting up the PATH variable.. Similarly, without specifying '.' in the CLASSPATH variable …  |
 | I am writing a program with java and i am having trouble displaying my .txt in my JTextArea. it shows it as 1 appended line and i want it to display the way it is set out in my text file. Here is my code: import java.awt.*; import java.awt.event.*; import … |
| | Hello! I want the java code for login+registration form using swing along with mysql connectivity. i do not want jsp or java script coding. just simple java code. please revert as soon as possible! |
| | Hi all, This *is* a Java question, despite the set up looking long! I am writing a program that involves constructing and using the inverse of a large correlation matrix many times. Suppose you have a data matrix X with d columns representing d variables and n rows representing the … |
| | Here is the code for extract RGb values from a single image.... and now i need to read set of images from a folder , can anyone pls give me idea for that since im very new to java ,,thanks in advance :) [code] import java.io.*; import java.awt.*; import javax.imageio.ImageIO; … |
| | What are the major ways one can use to make a system robust for national use?! Thanks in advance. |
| | am new in java and am rtying to code a program for lotto punters which generate as many numbers of 6 as the user request |
| | Can someone recommend JAVA books specifically containing sections devoted to JAVA Sound API and general sound modifications? |
| | Hi, i get an NullPointerException in this line:if (let==currentLink.aLetter) in search method. This is node class public class Letter { char aLetter; int points; Letter next; public Letter(char aLetter,int points) { this.aLetter=aLetter; this.points=points; } public Letter() { } public String printLink() { // System.out.print("{" + aLetter + ", " + … |
| | Hi guys, i m new for ths java progrmming.Please me the diff between array and arraylist. Both are dynamically allocated values.any added mechansims in the arraylist. Please let me asap. Regards, Pradeep |
| | There are many ways to read properties file in java. Here explained two wayS, using 1. ResourceBundle 2. Properties Class How to use this tutorial 1. Create one directory src and put both below files (MyProp.properties and ReadPropFile.java) 2. MyProp.properties name = Binod Kumar Suman roll = 110 city = …  |
| | My goal is to create a clone of minesweeper. I've created a custon component that extends the JButton class, for each of the minesweeper buttons. I've called this new class SweeperButton. the game board is going to be made in another class by creating a two deminsional array of SweeperButtons, … |
| | Hey, iv been working on a fairly simple part of my program but it throws a null pointer exception. The error i recieve is : Exception in thread "main" java.lang.NullPointerException at FillStyle.<init>(FillStyle.java:12) at compiler.main(Builder.java:43 The code causing the error is : public FillStyle(int type) { if (type >= 0) { … |
| | Main.java [CODE] package scrabble; import javax.swing.JOptionPane; import javax.swing.JDialog; public class Main { public static boolean isDoubloon (String word) { int count[] = LetterHist.letterHist (word); for (int i = 0; i < count.length; i++) if (count[i] == 2 || count[i] == 0) continue; else return false; return true; } public static … |
| | Hello, I have my database application containing all the customer information. The application is linked to my SQL using jdbc driver. I would like to know if it is possible to send email automatically every months(like a newsletter) with netbeans? If yes, how can I do it? Thank you. |
 | I have been trying to setup swt in eclipse Juno, but it keeps on giving me errors. Here is the error list: Exception in thread "main" java.lang.UnsatisfiedLinkError: Could not load SWT library. Reasons: no swt-win32-4233 in java.library.path no swt-win32 in java.library.path Can't load library: C:\Users\DeoFamily\.swt\lib\win32\x86_64\swt-win32-4233.dll Can't load library: C:\Users\DeoFamily\.swt\lib\win32\x86_64\swt-win32.dll at …  |
| | hi guys, i need help on algorithm to combine letters from a word. for example, i have this word: 'ABCD' . then i want to combine 3 letters from that word. so it comes to these combination: 1- ABC 2- ABD 3- ACD 4- BCD how is the algorithm in … |
| | Hi everyone, This October I will start university study (Open University in UK). I’m 35 and work full time (non-scientific, non-IT background). I plan to study to become a software developer in Java (that’s the language the Uni uses; they also have one course in VB.net) I’m not convinced yet … |
| | hi guide me, how to set enviroinment variable setting and path settings for jdbc and servlets. "I want to compile jdbc, servlet programmes from command line" i am using windows vista. |
| | Please people i was given a project in school to write an application that can serve as a reminder in Java ... is there any one that can help me out on this???? please i need help |
 | here i've created the first applet but it is not working, [CODE] import java.applet.Applet; import java.awt.*; public class FirstApplet extends Applet { public void paint(Graphics g) { g.drawString("Look at me, I'm a Java Applet!",10,50); } } [/CODE] i am getting no errors but when i am opening the html file … |
| | I read that every class extends a object class by default. then it should cause multiple inheritence and must not be supported by Java. Please help me about this.... |
| | Hi all, i want to wite an method that can take a String and return boolean , it should return True if the first character of string is an uppercase . Can not using String Apis ? so how can i do ? thank ! |
| | hi, I am very naive to java. my project is in data mining where i have to implement k means clustering. the task is like this 1.reads a csv file and stores the attributes in a matrix format 2.clusters the matrix data depending on the euclidean distance measure. 3. the … |
| | Hi, I am developing a website that allows users to be able to navigate the website by only clicking on a soft switch. All links are rotated through an array when a link is highlighted and the user clicks the link it is selected. I need to be able to … |
| | import java.util.Arrays; public class binary_search { public static void main(String[] args) { int ar1[] = new int[128]; int p, key=78; p=Arrays.binarySearch(ar1, key); System.out.println("element found at index "+p); Arrays.sort(ar1); p=Arrays.binarySearch(ar1, key); long start = System.currentTimeMillis(); Long elapsed = System.currentTimeMillis() - start System.out.println("Time to do stuff (in milliseconds): " + elapsed ); … |
| | I have a JTextArea that I need to be able to print off from the printer. This is the kid of text that is in the JTextArea GLEN ROGERS 47 PINE AVENUE, CARRICKFERGUS, BT38 8EE, 07824771114 733KIA 2012/07/03 DEVICE; OTHER - GIVE MAKE AND MODEL PACKARD BELL EASYNOTE TN? WINDOWS … |
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