35,619 Topics
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| | hi could anyone tell me how to get bit pattern of a negetive number. For example bit pattern of -1357 is: 11111111111111111111101010110011 and bit pattern of 1357 is: 00000000000000000000010101001101 but how????  |
| | Hi, I'm making an app that uses Collections. Everything went ok until now, what I've done: I've got a class that initializes 3 strings, those strings are private, so I have made 6 public functions that sets or reads values from those strings. Next I've made a hashmap, keys are … |
| | I am trying to publish my ear and war modules into Oracle weblogic portal 10.3.0.0 server using workshop. I am using pointbase DB. But publishing failed since I was getting the following error, weblogic.application.ModuleException: Exception preparing module: EJBModule(netuix.jar)Unable to deploy EJB: ProxyPagePersistenceManager from netuix.jar: Exception while attempting to deploy Security … |
 | Guys,i want a small help from you.I have a created a database in MS Access and now i want to connect it to with Java Application by using ODBC Administartor.But when opens it,it doesn't show any driver for MS Access DBs.Do u guys know any driver for that.I'm using Windows … |
| | Hi Everyone, I'm new here and also new in using Java. I want to make an iterator without using the default methods hasNext, hasPrevious. Here is what I've already done using the default methods: [CODE]import java.util.*; public class HomeIterator{ public static void main(String[] args) { int i = 0; ArrayList … |
| | hi, please help me debug this, i am trying to add one row from one table to another at the same delete it from the table i am getting it from. (cut and paste kinda thing). Only one part works, i can only copy and not delete. [CODE] int recordAffected … |
| | Hi all, If I write a java program inside of eclipse, how can I run that program outside of it, rather than just hitting the run button in eclipse. So, I can give others the program to run on their computers. Thanks! |
| | Hi everyone, I'm working on a project for my computer science class and we're supposed to make a java applet game. I'm not very far in the game quite yet, but I'm trying to make sure that the mouseListener and the rectangles work before I continue on with the game. …  |
| | Hi everyone, i'm trying to make a sound each time a ball touches the lift and right of a frame but when i use clip and try to use the sound class it sound from right then left the in middle and then stop. i Can really use some help. …  |
| | Hi All, I am currently trying to figure out to finish this project. Below is my code that I have so far. There are some blank methods that I am not sure where to even begin on how to complete them. I have a description of what the methods should … |
| | I was working on some code to produce a 10 x 10 multiplication table with equal tabbing and spacing between rows. I can't seem to get more than one column on my table though. I did some other research but wasn't able to find a helpful answer. Any help is …  |
| | Is it possible to get a user's mac address when he visits my website through a JApplet? |
| | I have got everything right and my project is compiling. But I am experiencing problem with servlets, when I right click on a servlet and click on run in netbeans then I get following two error: 1) Class "Servlet1" neither has a main method not it a servlet specified in … |
| | I have to write a program that takes the smallest number from a list of numbers and puts it on the first position. [CODE]public static void minToFront (ArrayList<Integer> minInteger) { int result = 0; int min = minInteger.get(0); for (int i = 0; i < minInteger.size(); i++) { if (minInteger.get(i)< … |
| | Hi, I'm trying to write a program in Java to send AT commands to my mobile and recive information via BlueT from it. I've already got a program to search and fide blueT Devices, and thats how i receve: 1.name of device 2.blueTooth Adress How to use this two things … |
| | hello all when I do javac ,I often warn to use -Xlint ,and then the result has one or more warning. As example I attach the javac's result below.The question is how to eliminate warning thank you denny C:\LJava>javac -Xlint -d build src\KwitansiJava04.java warning: [path] bad path element "%classpath%": no … |
| | This is saying that the sum is 0.0 but I am not sure if it is right. Can someone let me know please. Here is the code i used: [CODE]import java.util.Scanner; public class Lab424 { public static void main(String[] args) { int i; float sum; i=3; sum=0; while(i<=99) { sum=sum … |
| | hi Is this possible to send a request to servlet from socket client? I use request.getInputStream method to get client request. I got an error HTTP/1.1 400 Bad Request Server:Apache-Coyoyte/1.1 Transfer Encoding:chunked Date:Fri,04 Nov 2011 Connection:close How can I achieve my task?? |
| | I am creating a simple GUI with a few buttons and a text field. I set the window size to to 500x500 and the text field fits on the South perfectly but once i resize the window the text field stays the same size is it possible to make to …  |
| | Hi all in code below ,after I got the object aobj ,how can I identify which component aobj actualy is.And where is it Location ? thank you denny [CODE]CaretListener listener = new CaretListener() { public void caretUpdate(CaretEvent caretEvent) { Object aobj=caretEvent.getSource(); Component comp=aobj. System.out.println(aobj.toString()); } };[/CODE] |
| | Hi guys, I'm taking a Networking & Internet Systems module... have little experience working with java and am trying to work through an assignment... hopefully you can help! The task is to implement a basic UDP chat system. Create a simple chat system which uses the network (at least locally) … |
| | SO ive searched the web for a tutorial on a simple ftp server and client made in Java and have only been able to find ones that show you how to make a ftp client for apache , however i want to make a ftp server in Java as well … |
| | I'm trying to make it print out like this ***** **** *** ** * but it keeps on coming out like this: ***** **** *** ** ** here is the code i used [CODE]public class Asterisk { public static void main(String[] args) { for (int i=5; i>0;i--) { System.out.println(""); for … |
| | I have a program to write an application that takes the initial balance, annual rate, and number of years and finds the balance of the account at the end of each year. I have the following code but my Annual Rate label is in the incorrect place, the calculate button … |
| | I have made a media player in java using jmf which plays mp3,midi,mpeg1,mpeg2&avi. How to play the [COLOR="green"]mpeg4[/COLOR].Also i want to make a [COLOR="Green"]playlist[/COLOR] for it which can add,delete and save the songs in the playlist.here is my code of media player..... [code]import javax.media.*; import java.awt.*; import java.awt.event.*; class MediaPlayer … |
| | Write the ideal weight calculator so that height in inches is entered by using a slider. Use the approximate formula: W = H2 / 30 , for female W = H2 / 28 , for male where W is the ideal weight in pounds, H is the height in inches … |
| | #1 - I'm a newb to java :( #2 Im having a problem getting getting my JTable to update when the user edits a cell. Im using a abstract model which is basically what the sun tutorial did word for word( i used a abstractmodel so i could make columns … |
| | Hi members, just a simple question, how would I show a constant in an UML diagram? For example, here is a double field the class contains. - radius : double But how would the constant PI (3.14159...) be shown? - PI : constant?? Future thanks for the responses!  |
| | how to lookup datasource which is created in glassfish with some jndi/dbname name. I am trying to get datasource writing code in a servlet like this Datasource datasource = (Datasource)initialContext.lookup("jdbc/customer"); Connection con = datasource.getConnection(); but it is throwing NameNotFoudExcepion for this context . how can access datasource created outside of … |
| | Hello :) Lets say I have a text file that looks like this : [CODE]*DataString1 info1;info2;info3 //newline delimiter *DataString2 info1;info2;info3;info4 //newline delimiter . . . //and so on [/CODE] What is the best container with which I could process and manipulate the information stored in this file? Thank you for … |
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