35,618 Topics
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| | Hello, I have this piece of code. [code=java] private Vector getColumn(ResultSet rs) throws SQLException { Vector row = null; ResultSetMetaData rsmd = null; boolean moreResults = rs.next(); if (moreResults) { row = new Vector(); rsmd = rs.getMetaData(); do { switch(rsmd.getColumnType(1)) { case Types.VARCHAR: row.addElement(rs.getString(1)); System.out.println(rs.getString(1)); break; case Types.INTEGER: row.addElement(new Integer(rs.getInt(1))); … |
| | what about this one? HTTP Status 500 - type Exception report message description The server encountered an internal error () that prevented it from fulfilling this request. exception javax.servlet.ServletException: Servlet execution threw an exception org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:390) root cause java.lang.ClassFormatError: com/mysql/jdbc/ConnectionImpl com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:283) java.sql.DriverManager.getConnection(DriverManager.java:582) java.sql.DriverManager.getConnection(DriverManager.java:185) JspDBSolution.KidsBooksPage.init(KidsBooksPage.java:20) JspDBSolution.BookStoreServlet.processRequest(BookStoreServlet.java:34) JspDBSolution.BookStoreServlet.doGet(BookStoreServlet.java:90) javax.servlet.http.HttpServlet.service(HttpServlet.java:690) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:390)  |
| | First class mail has no insurance, and costs $1 plus 17 cents for each ounce up to a maximum of 13 ounces. The first trick here is that your weight is stored in pounds and the description of the cost formula is in ounces. You do remember how to convert …  |
| | I am trying to create random rectangles and ovals. This is what i ahve so far: [CODE]import java.awt.Color; import java.awt.Graphics; public class MyRectangle { private int x1; private int y1; private int x2; private int y2; private Color myColor; //constructor with input values public MyRectangle( int x1, int y1, int … |
| | Hello, I have this piece of code. Help with Code Tags java Syntax (Toggle Plain Text) [code=java] private Vector getColumn(ResultSet rs) throws SQLException { Vector row = null; ResultSetMetaData rsmd = null; boolean moreResults = rs.next(); if (moreResults) { row = new Vector(); rsmd = rs.getMetaData(); do { switch(rsmd.getColumnType(1)) { … |
 | Here's a question for those of you who have experience of fixing or enhancing other people's Java code, which I hope will also be really useful for those in the early stages of learning programming. Please contribute! If you've looked at other people's code, you will know that sinking feeling … |
| | Before going into the explanation I will list what I am wanting to do in order: [B][LIST] [*]Have main() read [U]results.csv[/U] and create beans according to the lines of data in the file [*]Have my beans set up correctly (getters, setters, and propertychanges) [/LIST][/B] To give you guys a quick … |
| | I will pay the first person to finish this task via paypal!!! I will pay $5! Good luck! [B]Brief:[/B] Create a program that will read data related to the test results of a particular group of learners from a text file. The data must include fields of the following types: …  |
| | Hi! I have a school project where I have to make a array that includes facts about films. Every space in the array includes leanght of the film, authour, grade, company, and title. So I know how to write it to a file but I have no idea how to … |
| | Hi all! I've been working on a problem from my Intro to Java class for a couple of weeks and I feel like I'm close. I turned it in and only got partial credit. Here goes: This program allows a user to enter a phone number, country code, area code, … |
| | I'm having some problems in creating sessions in JSP pages. I'm new to it so I need some advices. [CODE]<%@ page import="entity.*" %> <% [COLOR="Red"]HttpSession session=request.getSession(true);[/COLOR] String id = request.getParameter("idNo"); String fullName = request.getParameter("fullName"); String maritalStatus = request.getParameter("maritalStatus"); String height = request.getParameter("height"); String weight = request.getParameter("weight"); String gender = request.getParameter("gender"); … |
| | [B]Hi, I am developed a simple web application using servlet where it gives a response for a fixed request, but a third party application sends this request very frequently as per our project architecture, but due to this very frequent request, the tomcat server slow down after a few seconds, … |
| | Question directed at JamesCherill specifically, (and anyone else who can answer it) I've never had [I]too[/I] much trouble with communicating between the model and the view, in an application that only has a model and a view. However, looking at the observer pattern (at the bottom) of this [URL="http://leepoint.net/notes-java/GUI/structure/ui-model-communication.html"]link[/URL], I …  |
| | I have tried to make a chat application that only saves the recieved messages which can then be deleted. I'm having some major problems with it. Can anyone please point out or correct my coding. I have tried for ages to get this working but with no joy. Client Code …  |
| | hi guys I hava an assignment, which is writting a java code that most efficiently add 50.000 element to a threaded binary tree. the Key nodes are integers between [-5.000.000 to 5.000.000]. No delete operations are needed, but only adding that elements to binary tree i hope you can give … |
| | if i want to print 2 to the power 3 normally what we do is 2^3. is there any other way that i can print it in the console in the way that we normally write it on a paper. does anyone know it pls tell me. |
| | HI, aLL [code]final int[] fromStop = {1, 2, 3, 3, 4, 5}; final int[] toStop = {3, 4, 5, 1, 2, 3};[/code] im trying to write a loop to create and start passenger threads with the respective from and to stops in the arrays above. e.g. Passenger 1 goes from … |
| | I would like to find out how to fix drop down menu over flash when the flash content brought by the java/script below into iframe? You may see what I am talking about here : [url]http://67.220.225.130/~ktaelot/#[/url] Here is the script: [CODE=javascript]<script type="text/javascript"> var fo = new SWFObject("ext/viewer.swf", "viewer", "100%", "100%", … |
 | Hi Folks, I am having difficult with a program. I have a program that downloads a file to the directory it is being run from and I need to move it to another one after its done downloading. I found code that should do it but it keeps failing, and … |
| | Hey guys, I am doing my game project but i get this error everytime i press high scores button...can any one explain what this error means? Thanks in advance :) j Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: 1 at HighScoreManager.readHighScores(HighScoreManager.java:22) at StatusView$1.actionPerformed(StatusView.java:71) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242) at … |
| | Hi guys , i am a to programming and have to do little code as an excercise, but got little confuse about constructors and objects while compiling my programm. forexample i created an object of a class called AsciiImage; in the Main class public class AsciiReader{ public static void main(String … |
| | Here is what I am trying to do I am trying to compare to values that are set up as generic values and return whether one is greater than the other and it is telling me that (E, E) cannot be applied and I don't know why. I would appreciate … |
| | Hi, I am trying to write a program in Java and I am having a problem with a small part of it. I am using a JLabel to display an image. The JLabel is added to a JPanel with fixed width and height. But the problem is that the image … |
| | Howdy, I am trying to write a simple program in java that creates a database with some tables and adds some data, but I keep gettin this error: [CODE]java.sql.SQLException: No database selected[/CODE] I am posting the code below, it's really easy to understand. Please HELP!!! I am new at mySQL … |
| | Alright, I'm trying to import data from a text file into an array, the data represents different properties of buildings that are to be drawn on a panel. I have 3 classes, Building3 which represents an individual building, CityPanel3 which represents the panel that the buildings are drawn upon (also …  |
| | Hi, im trying to get code that if seats are availabile on a bus, then a passenger may get on. For the code i have provided, when i run it ,passenger gets on at the correct stop, but never get off.....i.e. the first 2 passengers ride forever........ help! what am … |
| | Ok...The assignment is to create a mortgage calculator with a GUI that asks for the principle amount, has a drop down box that allows the user to select an interest rate and term (ie 7-yr at 5.35%) and displays the informat, payment, and an amortized payment schedule...I beat my head … |
| | Hi, I'm not sure if this is the right forum but.... I'm doing a project for college which involves Learning Content Managemnt System. I've developed a few features for this including chat, forums, etc. I want to develop an SMS system to use in conjunction with the chat application ie. … |
| | hi, I have to do a program that generates 'n' different combinations of 7 different numbers between 1 and 49, so I did this: [CODE]import java.util.*; public class Totoloto { public static void main(String[] args) { System.out.print("Quantas apostas?"); Scanner s = new Scanner(System.in); int n=s.nextInt(); int[][] apostas = geraApostas(n); for(int … |
| | He wants to input in the program an undefinite number of (numbers like 1, 2 etc), all positive. With that done he wants the program to randomize these numbers and show them one at a time in a random distribution. i thought it was easier when he asked but i … |
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