36,051 Topics
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| | The Problem: Aircraft fly from one point to another. At the same time, birds fly around. The objective is to determine whether the aircraft will encounter birds or be able to reach its destination safely. The airspace is divided into 100 squares (10 x 10 squares). For simplicity, we shall …  |
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| | I'm reading Data structures and algorith analysis by Weiss lately. There's just one part that doesn't make sense to me at all. [CODE=java]public class QuadraticProbingHashTable<AnyType> { public QuadraticProbingHashTable() { this(DEFAULT_TABLE_SIZE); } public QuadraticProbingHashTable(int size) { allocateArray(size); makeEmpty(); } public void makeEmpty() { currentSize = 0; for (int i = 0; … |
| | Is there an easy way to incorporate a JSP forward directive inside an html "<a>" (anchor tag) I'm trying to do something like: <td> <a <jsp:forward page = "MyFacility.jsp"/> > Test Three Forward</td> but cannot get the syntax correct. I'd like to have the "Test Three Forward" appear as the …  |
| | [i] Topic The topic of this question is: How does the @NamedQuery work? [/i] [icode] Hello and Thank you in advance for any assistance. [/icode] [u] [b] Purpose: [/b] [/u] [b] The purpose of this code is understand why the Netbeans ide constructed @NamedQueries that refer to an object Content … |
| | Hi all, I am using JCIFS jar to connect samba server. Is there any possible to increase session time. |
| | [i] Topic The topic of this question is: tracking the content of an array in a session bean debug sessionbean1.java [/i] [icode] Hello and Thank you in advance for any assistance. [/icode] [u] [b] Purpose: [/b] [/u] [b] The purpose of this code is to try to find the best … |
| | Hi all, i am doing online banking project in java. i have MINI statement page which displays LAST 10 transactions. And i have DOWNLOAD link on MINI statement page. Onclicking the DOWNLOAD link "SAVE as" dialog box should popup asking users to save the ministatement to their locations on the …  |
| | I have a problem with my program. When i try to compile it it says i need a ; can someone try to compile it and please help me? [CODE]//This program will represent a pizza public class Pizza { private double cost; //the cost of the pizze private String crust; … |
| | Hi everybody. I am writing a program that calculates the amount of Carbon Dioxide produced in a year from waste by a few selected households and comparing how recycling can reduce the CO2 footprint. However, I believe the code is correct; I am just not getting the expected output. So, … |
 | Hi Guys! I am trying to get a scroll bar to go to the lowest position possible. I am using a chat program and it bothers me that I have to scroll down to see new messages! I googled around and found lots of answers for flash, and other languages … |
| | HI all wonder if someone can help, i want to be able to printout specific elements within an arrayList without using array keys. I have the following code, which will print out every element in the array. I want to print out every 2nd element. So so i had a …  |
| | Name: The name of this file is table_autoincrementedId Hello and Thank you in advance for any assistance. Purpose: The project is a Visual web JavaServerFaces project that is in the same folder and that imports the app library. Modeled after the tutorial at Using Java Persistence API Within a Visual … |
| | I have the following as my code, and i cant figure out why i am getting this error. I think it has to do with my While statement. Please help! [code] import javax.swing.*; import java.lang.String; public class FollowingDate { public static void main(String[] args) { String date, month, day, year; … |
| | hi ive developed an inventory program but when i compile it keeps giving me an error message that ive tried solving but it doesnt work.the code looks like this: // Inventory.java // Program that displays the value of a product in inventory. import java.util.Scanner; // program uses class Scanner class … |
| | I am reposting this question. How many bytes in memory a string occupy in Java language? Suppose i write: String name="Bill Gates"; So, how much memory it requires? Whether it can store a UNICODE character in the string. How internally it is implemented, using a 1 byte char array or … |
| | Okay I have a finished program that does the job of what I want to to do but it seems so messy. Could you guys gimme some suggestions about how to make this code more efficient... or just neater in general. Much appreciated and thanks in advance. [CODE] import java.awt.*; … |
| | Hi Frnds, I am making one application in java which queries with the printer using snmp protocol , I am throwing Object IDs and getting the result back from printer , i ma using java snmp package , but when i throw one oid 1.3.6.1.4.1.11.2.3.9.4.2.1.1.2.65.1.1.0 , i am getting the … |
| | hi! First of all sorry if my english is a little poor I want evaluate a text box named txt1, the focus shouldn't exit from the text box until the user write any in it. This is my code: [code=java] txt1.addFocusListener(new FocusListener() { public void focusLost(FocusEvent e) { if (((Text) … |
| | Hi, learning swing at the moment and was following a tutorial off the sun website, made mine with eclipse instead of netbeans. but all I get when I try to run it is the following in the Console window: gap= 4 gap= 0 Not sure what is going on here. … |
| | Hi, My Signed Applet works fine on my XP and Vista. I just accept the certificate as Trusted and it is fine. Signed Appplet and Certificate are made on XP. I want to run my signed applet in a remote Mac and Linux PC. When I open the page, it … |
| | I'm not sure what forum this fits into, if any, but the program itself is going to be written in Java (not that it matters much). My question is, what is the easiest software to use that I can create a drawing of a GUI with? The GUI I want … |
| | Hey everyone. rather new to java and was wondering on how i would accomplish this. I am using the Netbeans JDE in creating a Java GUI. I have completed the whole script but now am just doing some fine tuning in flattening out any errors that could go wrong with … |
| | I have error in the top of this program not sure what I did wrong. import javax.swing.JOptionPane; public class Main_Class { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub class wk2 { private static final char Y = 0; /** * @param … |
| | I am doing a chess game using arrays in java I have my array set up I just need to figure out how to write an algorithom that goes over the chess board and reports what is on what spot --(i,j) coordinate. Here is my array. Also let me know … |
| | Hi all wonder if someone could give me a bit of help, i'm new to using RnadomAccessFiles, so please bear with me. Basically i have the method below, which writes some data into a xml file, what i want to be able to do, is move the file pointer to … |
| | hello, i've inherited a project which has to be done in 11 languages, i know nothing of jsp development. the original uses a jsp page to send mail to a friend with your score in a flash game. i have tried changing.... message.setContent(txt, "text/plain;"); to... message.setContent(txt, "text/plain; charset='UTF-8'"); but this … |
| | Hi, In one of my task i need to strip off zero from a string. In the following variable declaration : var i = A010; (Alphanumeric format type which has 10 spaces) i need to strip off zero between A and 1. i should not remove the zero which comes … |
| | I need a simple of way of redirecting output from the console to a custom GUI that I have made i.e. Text Area or Text Box. Am looking for a way of making the PrinStream to be attached to my custom gui so as to output the contents of System.out …  |
 | [QUOTE]Hello Everyone, [/QUOTE] I would like to ask some help from you. I'm Mark from the Philippines. I'm a newbie programmer and I'm new with java,that's why it's very difficult for me to make a program using java. Our Teacher had given us an assignment using java,to make a simple … |
| | hi,pls wat does this symbol mean(%)?i know it means remainder,but can not seem to understand in what context . for example if you say hours = hours%24; minutes = mins%60;................. |
| | Hi, How to get the value from a hashtable irrespective of its case... plz reply ASAP. Thanks in advance, Shilpa |
| | Hi. Just wondering if there's a shortcut to this code? [code] if (calculation(codeword, s[0]) == calculation(codeword, s[1]) || calculation(codeword, s[0]) == calculation(codeword, s[2]) || calculation(codeword, s[0]) == calculation(codeword, s[3]) || calculation(codeword, s[1]) == calculation(codeword, s[2]) || calculation(codeword, s[1]) == calculation(codeword, s[3]) || calculation(codeword, s[2]) == calculation(codeword, s[3])) [/code] Thanks in … |
| | Hello Fellas, I would like to ask some help from you. I'm Mark from the Philippines. I'm a newbie programmer and I'm new with java,that's why it's very difficult for me to make a program using java. Our Teacher had given us an assignment using java,to make a simple chat …  |
| | hi i need help with writing a program...I have to Write a program that simulates a student registration. A button allows entering a student name. Three more buttons are used to enter test scores. Name and test scores are entered into a text field. The information about the student, including …  |
 | Guys We have a project.. . Its' a sales and inventory system.. . My question is can PHP and Java plus MySQL.. Work together.. PHP obviously runs in a web browser. But I wanted also the java program to run also in the web browser, can I also run the …  |
| | In the writing of this program, I have happened upon a problem in the main method of the Tester class. In the Tester class, I am trying to print out the average monthly electric bill value. However, when I try to run it, I get an error stating: "calcAveragePrice(java.util.ArrayList<java.lang.Double>in CO2FromElectricitycannot … |
| | I'm trying to put together code that can upload multiple files to a server via HTTP. So far, I've put together code that can send one file at at time via HTTP. When I send more than one file at a time the first file is processed but then the … |
| | Hi. Sorry, if this is a really easy to answer. I need to find the smallest int result in a calculation between a fixed value and a variable. Then I need to return one of those variable. However, if there exists multiple smallest results, then I return a fixed value. … |
| | Hello, I would like to use a JSP script running on a Linux server, to be able to create a user account on a Windows 2003 server. My query is how do I access the Windows API from a different machine, and how does the JSP script authenticate itself to … |
| | Hello, My intended scenario is that, there is a Button component on the visual web jsf page and someone click on the button, instantly a confirm box (javascript) is displayed. Now if the person click on the ok button of the box the form will be submitted but the form … |
| | Hi! I'm writing a pool simulation and have an awful problem with my ball collisions (elastic collisions). The theory (in terms of vectors) is that when two balls collide you take the line between their centers and the velocity components which are perpendicular to this line are unaffected, while the … |
| | I have the following table [code] <!-- Static Headers --> <table style="width: 620px"> <thead> <tr> <td colspan="3" width="15"></td> </tr> <tr valign="top" class="results_headings"> <td width="35%">Force Number</td> <td width="35%">Name</td> <td width="30%">Required Qual Code</td> </tr> </thead> </table> <!-- Scrollable Area --> <div class="scrollable"> <table class="memberlist"> <c:forEach items="${members}" var="mem" varStatus="status"> <tr> <td width="35%"><c:out value="${mem.forceCode}" … |
| | Hi, I am trying to understand & code web crawling. I want to crawl only my local data[Pages related to a particular site]. Apart from that i want to fetch only particular data from the related web page. I also have to store the fetched data in a mysql database. … |
| | Hi, I am implementing Linked List in Java. I am using three classes for this i.e Data Class, Node Class and Linked List Class. Now the problem is that a searchNode method in my linked List class doesn't work properly. I have tried to debug it it, but can't understand. … |
| | Hi all, Can any one tell me, how to find C: free space in windows using jdk 1.5 ?.Thanks in Advance. |
| | Hello, I have a one form in jsp in that I m using ajax technology..but i am confuse..my question is.. My form contain one table, i want when click on a [B]Perticular Cell[/B] of a table the related data will display by using ajax..please tell me how to call ajax … |
| | [COLOR="Green"][B]write a report on threads in operating systems such as [U][COLOR="Red"]Linux[/COLOR] [/U]and [U][COLOR="red"]windows XP [/COLOR][/U]? [/B][/COLOR] |
| | i reaaly get few errors in the code for run a video in JSP or for video streaming... can anyone help me to give the code for it.. thank you |
| | Hi, Dear Friends i am working on my Project of Chatting... i want to chat with the Client having the specific ip address, so i just pass the ip address of my friend to the server and server will send my message to that ip address... on which a client … |
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