36,051 Topics
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| | Hey lads. Doing a while loop question but am having a little difficulty with this question. I thought i knew enough to get questions like this correct but unfortunately not experienced enough. The following code is attempting to get sum of values in array that are less than 10. When …  |
| | Im writing the demo for my class to demonstrate each method. The class takes a number and assigns it to a month, or is supposed to. I have it working to say month 1 is January, month 2 is February and so on. I want to user to enter a … |
| | Hi, Im currently in a situation to get all the application name that is currently running in windows but i can get only the processes that is currently running using the following code Process p = Runtime.getRuntime().exec("tasklist.exe /v "); Can anyone help me out in getting the application name... Thanks … |
| | Hi, My requirement is to covert the .DOC file to .PDF with the [B]proper formating [/B] using java or in Web Dynpro Java. I have already tried to POI to reading the doc and iTEXT for converting to PDF but the problem is this scenario doesnot maintain any formating :(, … |
| | hi, i have some problem with my project, can u help me??? I google but no solution found...:( I used hibernate, strust 2 and spring to manage transaction. I want to try catch username in New.java, username is a PK, this pape throw can throw excetption error but the server … |
| | Hi My program is trying to load properties but it is saying it can not read a line of it. Does anyone have an idea why not? [code] dbProperties.load(dbPropInputStreasm); [/code] but error [code] Exception in thread "main" java.lang.NullPointerException at java.util.Properties$LineReader.readLine(Properties.java:418) at java.util.Properties.load0(Properties.java:337) at java.util.Properties.load(Properties.java:325) error here -------> at model.dao.DerbyDAO.loadDBProperties(DerbyDAO.java:160) at … |
| | import java.awt.*; import java.awt.event.*; import java.text.*; import javax.swing.*; import javax.swing.border.*; import java.util.Arrays; import java.io.*; public class BankAccount extends JFrame { // Make these variables publicly available String file = ("THUS.txt"); public static String acctNumber ; public static String custid , acctDateOpened; public static double balance ; private static final String … |
 | [CODE] String test = "for (int i = 55; i < 60; i++)"; String line = ""; String replace = " Tester." + "n" + Tester.counter + ";"; Pattern p = Pattern.compile(reg); Matcher m = p.matcher(test); if (m.find()) { String s = "public static double n" + counter + " … |
| | ok, so i have this [B]so far [/B] [CODE] String p = "(http|ftp|https):" + // sees if the proto is any of these " (\\:[\\w^\\:]+:)? " + // gets the sub-proto " \\/\\/" + // the two forward slashes "([\\w*.]+)" + // gets the subdomain(s), domain and tld "[\\:\\w*^"; [/CODE] … |
| | Hi experts, I have done a very simple snake game but there are some error.. I would like to make it continue with 3 lifes before game over but I fail. Did any1 can help?? Here is the code: import java.awt.*; import java.awt.event.*; import java.applet.*; import javax.swing.*; import javax.swing.JOptionPane; import … |
| | I am working on this programming probability assignment for class and I am having trouble figuring out how to work this problem below. 1.) Design and write a computer-based simulation to find an empirical probability for landing on GO TO JAIL/Boardwalk. |
| | Hi guys, I'm trying to count the comparisons in the mergesort algorithm so that I can compare it to other sorting algorithms. I've managed to get a count to work for insertsort but mergesort is being a complete pain! It's probably a very simple problem but I've experimented around with … |
| | Hi guys, I'm trying to count and time the comparisons in the mergesort algorithm so that I can compare it to other sorting algorithms. I've managed to get a count and stopwatch function to work for insertsort but mergesort is being a complete pain! It's probably a very simple problem … |
| | Here is an example of the return statement in question: [CODE]public boolean either24(int[] nums) { boolean n1 = false; boolean n2 = false; for (int i=0;i<nums.length-1;i++) if (nums[i]==2 && nums[i+1]==2) n1 = true; else if (nums[i]==4 && nums[i+1]==4) n2 = true; return !n1 && n2 || n1 && !n2; //<----what … |
| | The board game scrabble works by assigning points to wooden tiles arranged in cells on a board. It's described here:[url]http://en.wikipedia.org/wiki/Scrabble[/url]. We'll simplify this considerably, and consider the following question. We begin with the letter-scoring scheme from Scrabble: a = 1, b = 3, c = 3, d = 2, ..., … |
| | Hi, I am trying to do an assignment about buying zoo tickets but I am becoming stuck on the last hurdle when trying to get the accumulate number. [CODE]import java.util.Scanner; public class ZooTaking { public static void main(String[] args) { // Create a Scanner Scanner input = new Scanner(System.in); // … |
| | I have a difficult time with getting the programs started. I read the book but I am not getting anywhere. There just is not enough examples to help me. The book we are using for CSC 135 is called Java Software Solutions by Lewis & Loftus. We are starting on … |
| | Is it a good programming practice to pass List as a parameter in a Constructor? Just learning.... Thank you .. |
 | Hi everyone, I've written a small program to convert combinations of English characters into their corresponding Chinese and Japanese equivalents, and it's working on my computer at home, so so far so good. However, I'd also like it to work on computers which don't have Chinese or Japanese fonts installed, … |
| | Code to Execute an SQL Script in JDBC. The SQL Script should have comments starting with - or -- only on new lines and each command should end with a ; . Reading a sql file and putting all of it in a string variable and feeding to the execute … |
| | I've not programmed extensively, and I've got to create a program that's beyond my knowledge. I'm trying to create a program that will help me measure the amount of memory a certain IP routing algorithm will use to store address prefixes. The program must convert each dotted decimal address to … |
| | Hi! i'm a new user of jsf. I'm developing a web application in jsf 2.0 . There is a page in my application for which i have given session scope. In this page i retrieve values in a datatable from mysql database according to the chosen combo box values. I … |
| | just wondering if anyone could explain this... [code] if(loginF.equals("root") && passwordF.equals("root"))[COLOR="Red"]; [/COLOR] ---> if this semicolon is here, my program works.. but i can't have an else statement if i take out this semicolon, the code within the if statement don't execute.. but i can then have an else statement … |
| | I am tring to draw a house & street & garden but i stop....? could plz someone help me and complete my job this is my code import java.awt.*; import javax.swing.*; public class Zzzzzzzzzzzzzz extends JApplet { public void paint(Graphics a) { house(a); door(a); roof(a); rode(a); } void house(Graphics b){ …  |
| | Hi all, I am a beginner in java.I have written a code to design a layout of a traffic signal.The lights are working fine.The problem i am facing is to randomly generate cars from all directions and to stop them at the junction.I am not understanding how to use repaint.Here … |
| | Hi everyone, I have a single string - let's call it string A. I have an ArrayList of objects. Each object contains three strings. I want to iterate through the ArrayList of objects and check if any of the strings contained within the objects are the same as string A. … |
| | Hey guys, In JSP I used to create my sessions in my servlet like this: [CODE]session.setAttribute("user", username);[/CODE] and then call it from a JSP page like this: [CODE]<%= session.getAttribute("user") %>[/CODE] However this does not work in JSPX pages and its driving me crazy. Can any one help me? Any help …  |
| | hi i use log4j for logging i want the file that logs append to it , in every day be separated .for example my logs for today input in 2010-04-20.log and tomorrow in 2010-04-21.log file!! or any way that i can understand that this log file related today and that … |
| | how can one determine whether a given string can be expressed as a concatenation of palindromes of even length. |
| | I Have this problem and honestly have no idea where or how to start this, can anyone give me an idea or help? [QUOTE]Write a JavaScript program to calculate the statistics of words in a web page. When running the program in a web page, the script should output all … |
| | So I have my documentbuilder and I'm doing this the DOM way. I've managed to get to the point where I have saved the tag I want into a nodelist NodeList list = doc.getElementsByTagName("myTag"); the xml looks like this <myTag id="1"/> but now I want to grab the id number … |
| | i am writing a program for my java class and have to create a calculator, i got the calculator to work for two numbers but can't get it to do more than two numbers and it needs to. any help will be greatly appreciated. If you take out the tnum … |
 | Hello everyone, I am writing a program that will read data from a txt file and for the life of me I cannot get it to do so ... Seems like no matter what ! I do it keeps telling me it cannot find the file .. I have used … |
| | Hey ppl. I've been working on this forever and cant seem to get it. I am developing a site in jsp using netbeans and i have an applet i want to add to a page.I know i have to use <applet> tags but i dont know what to put to … |
| | I'm currently doing a model, however its occurred that I'm getting 1 error that which is saying that the && operator. I don't fully understand why that is. If there is a solution to this that would be great, also with a good explanation why I have made this mistake … |
| | [code]public String viewByItemCode(String icode) { String search = " "; for( ; x<recordNum ; x++) { if(itemRef[x].getItemCode() == icode) { search = ("\nItem Code: " +itemRef[x].getItemCode()+ "\nItem Description: " +itemRef[x].getItemDesc()+ "\nItem Unit Price: " +itemRef[x].getItemUnitPrice()+ "\nItem Quantity: " +itemRef[x].getItemQty()+ "\nItem Unit Measure: " +itemRef[x].getItemUnitMeasure()+"\n"); } } return search; }[/code] Supposed … |
| | import java.awt.*; import java.awt.event.*; import javax.swing.JApplet; public class CarApplet { private Image carLeft = null; private Image carRight = null; private Image carUp = null; private Image carDown = null; private Image carImage = null; private int direction = -1; privte Point carLocation = new Point(25,25); ? /*Over here this …  |
| | hi, i just wanted to know why do we need drivers in java to connect to a database when we do not have any such driver for PHP? [CODE]String str = "com.mysql.jdbc.Driver"[/CODE] any help will be greatly appreciated |
| | how to select best 4 grade out of5 55,99,66,88,44 by java program |
| | Hello everyone, I am interested in creating a program that A).. displays a picture at random from a specific pool of images as a screensaver ,, and B) allows the user to set a time frame in which one of the pictures will randomly pop up on the screen.... Can … |
| | Hellow. Am new with java programming. i have created GUI frame and the database but i dont know how to retrieve data from the database table and how to write data into the database table. Please can any one help me as soon as possible. |
| | hi guys i want to learn if there is an equivalent of " vblf " (from visual basic) or " \r " (from c#) in java ?  |
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| | I'm reading in a text file and want to parse based on labels within the text file. At first I was trying to do this with patterns, but after spending some time reading the API documents, I'm not sure what I need. I think I'm making this too complicated. Example … |
| | I want to make an object move to a new height from the user request. My code below does not do that. Where am I going wrong. thanks in advance. /* instance variables */ private Aobject object; public void moveObject () { int number; { number = Integer.parseInt(Dialog.request("Enter new height?")); … |
| | Hi buddys at school we are now working with functions and derivates (or how you spell it) and im getting kind of tired to write the same thing the hole time in the calculator and on the paper plus the fact that i need something to program. So i was … |
| | hi i want to display the selected values from a "select" object into a new window with jsp but no matter what i do, it always writes "null" can you help me? this is mi code [CODE] <form id="form1" name="form1" method="post" onsubmit="revisar()" action="echo.jsp"> <table width="699" border="0" cellspacing="10" cellpadding="4"> <tr> <th …  |
| | So I finaly managed to compile HelloWorld, but only by typing out the entire C:\progra~1\java\jdk16.0.2\javac HelloWorld.java, which left me with some serious blisters on my fingers... Is there some way I could be able to just say Javac HelloWorld.java? Thanks if you reply, I'm kinda new to this stuff |
 | I do not often visit the Java forum, because I know nothing worth posting in the Java forum :) But when I [I]do[/I] visit, I see a lot of posts with code without code-tags. This makes the code nearly unreadable and reduces the overall quality of Daniweb. So I have … |
| | Design a GUI program in Java to perform search, check-out and return of books for a library. Thank You |
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