32,199 Topics
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| | Hi! how could I delete all spaces in the string: [ICODE]String str = "AAA BBB CCC";[/ICODE] in order to get "AAABBBCCC" as a result? The following doesn't work: [ICODE]str.replaceAll(" ", "");[/ICODE] Thanks! |
| | hi i got one problem to solve am almost did but facing problem for my last for loop iteration can any one help me this is the problem i received University of Newcastle School of Electrical Engineering and Computer Science SENG1110/6110 Programming Assignment 1 – Semester 1, 2010 Due: By … |
| | Hey guys, I have a problem I can't seem to figure out properly: I have to implement a mirror in a java applet. For the mirror I used a second window. what I don't know: -how to rotate the second window -how to make it mirror what's in front of … |
| | Hello folks, For my final project I decided to write an online poker game. Long story short I'm having trouble with a class I wrote to manage java.net.Sockets. The source for this class is: [CODE] import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.PrintWriter; import java.net.Socket; import java.util.Iterator; import java.util.LinkedList; public … |
| | **CHANGE PANELS IN TITLE TO Grid Layout I first want to apologize for filling the board with a noob question but I don't know how to phrase my question on google. So here we go! My prof has us working on GUI programming. I am trying to split up my … |
| | Ive been trying to make a program that should keep the status of a hotel room layout. main method should return this: [url]http://img202.imageshack.us/img202/969/layoutview.jpg[/url] the cells should also be painted green if they are available for renting Yellow if they are booked or red if the are not available one class … |
| | hi everyone i am working on internet banking project. I have an little idea about the project what are the functionality to implement and I am not perfect in web technologies. But I'll work hard on this project. My major problem is I am not getting where to start it … |
| | An error called outofmemory error is coming up when I am giving nums value > 1. I have underlined where num comes. The strings bla1, bla2 etc, I gave for identifying the error. private void generateMouseClicked(java.awt.event.MouseEvent evt) { String s = new String(); String o = new String(); boolean check … |
| | I have written a piece of code, everything is fine until i run it, i get [CODE]"Exception in thread "main" java.lang.NullPointerException at useCADSL.main(useCADSL.java:5)"[/CODE] i know what it means, i just cant see where to modify [probably the whole you read what you think you've wrote thing] my first class is …  |
| | Hi everyone, I know you probably see a hundred of these during this time of year, but I have a project going at uni that requires us to create a string based hangman game from scratch. It's not anything fancy, and the game itself isn't too complicated, but where I'm … |
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| | helo everyone......... could anyone of you please explain me the concept of ARRAYS. another doubt.........can anyone of you just give e the basic lgic ofbinary search, linear search, bubble sorting an selection sorting!! specially binary search and linear serch the concept i have not understod proprly!! and a smal program … |
 | Hi guys, i have a String time 23:00, how do i subtract it against a String today's time and get the remaining minutes? do i parse the String into a date type? any ideas is appreciated, thanks. [CODE] public String getTime() { SimpleDateFormat sdf = new SimpleDateFormat("kk:mm"); Date s = … |
| | Hey, I have a problem and am hoping that you can help me find a solution. I have a site created in dreamweaver. To do this, I made a template, with 2 editable regions, then set up all my pages. The problem I am having, is that I am trying … |
| | i've posted a thread about reading xml file from remote machine. i've used JDOM to read xml file.bcs as someone has told me,it is really easy and flexible.now i am using it normally in local machine.i've opened a socket connectio between server and client machine.then i use JDOM to read … |
| | Hi guys. I've just installed libnetty-java package on my ubuntu $ sudo apt-get install libnetty-java and then try compile this code [CODE] import org.jboss.netty.channel.ChannelHandlerContext; import org.jboss.netty.channel.ExceptionEvent; import org.jboss.netty.channel.MessageEvent; import org.jboss.netty.channel.SimpleChannelUpstreamHandler; ... [/CODE] It throws this error: javac QuoteOfTheMomentClientHandler.java QuoteOfTheMomentClientHandler.java:1: package org.jboss.netty.channel does not exist import org.jboss.netty.channel.ChannelHandlerContext; ^ QuoteOfTheMomentClientHandler.java:2: package org.jboss.netty.channel … |
| | Hi, I'm currently trying to create a program that will log into the web page given to it if supplied with the user name and password. but the problem im having is sending the POST request to the website and then retreiveing the URL it sends back to load in … |
| | Q1: CommissionReport class JavaAuto is a used car dealership that pays its sales associates by sales commission. Your application will produce a sales commission report as shown in the example screen shots. Your solution will contain three classes. The MyArrays class will contain several static methods for searching, sorting and …  |
| | I need help the word class for a hangman program here is the code i have so far: /** * File: Word.java * */ package csc212project05; import static java.lang.System.out; import java.util.ArrayList; import java.util.Scanner; public class Word { private static java.util.ArrayList<String> wordlist = null; private char[] lexeme = null; // the … |
| | I need to change this from a bubble sort to a selection sort but i don't know where to start. Also I don't understand the difference between the two sorting methods, and which one would be more efficient. Thanks [CODE] import java.io.*; import java.util.Scanner; public class phase1 { public static …  |
| | hi, i am final year student and i need to start on my project in 3 weeks time. Wel i love programing with java and i need to learn more on the depth area's.So doing a project using java will help me a lot. So what i am asking u … |
| | Hi there, I am getting a 'Cannot find symbol error' on an array in my "ViewContact" Class. The array has been created in the "MainScreen" class. Below I have pasted the code for both classes as to provide you with as much information as possible: The MainScreen Class: [CODE] package … |
 | Hi everyone! Im trying to fill up a tree with the entries from a text file and I can read the file and I know how to make a tree object. I just dont know how to combine these two to populate the tree. Any ideas are appreciated! |
| | [B]Hey guys! I'm doing another school project, bleh ._. The method I need help on is called isFlush. It's a boolean that needs to determine whether the hand (subDeck) is a flush or not. A flush contains five cards with the same suit. I want to know how to just … |
| | Hi all, Im trying to run a simple applet which prints a message to the screen..The applet runs fine on applet viewer but when i try to view it in the URL bar i get the following error: load: class Test.TestApplet.class not found. java.lang.ClassNotFoundException: Test.TestApplet.class at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source) at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown … |
| | Hello, My assignment is to create a christmas tree using methods with defined parameters. 1) Print the tree at position 50 (50 spaces in) 2) Call the following Triangle (2,6) (six rows without the first 2 printed) 3) and the 1st row of these cut off triangles with the symbol … |
| | I'm working on a really basic text editor to save and open txt files. On my text area setLineWrap, it's giving me a "misplaced constructs" and "delete token" for the period and (true) For why? [CODE]/**Matthew Schrum *11/18/2010 */ import java.awt.*; import javax.swing.*; import javax.swing.border.*; import java.awt.event.*; import java.io.File; import … |
| | Hi! Could someone please explain me the difference between the following three approaches to inserting nodes in JTree? I cannot understand why the insertNodeInto method doesn't work in the recursive procedure (Approach Nr1), but it works if it is executed from JButton (Approach Nr2). So, Recursion itself (Approach Nr1) works … |
| | hi guys, good eveningn, ive been trying for two days now and i haven had no luck with this, im trying to compare 3 arraylists to filter by town, and age and show all the peoples names specifically from that town, heres my code any help would be appreciated. heres … |
| | Hi I am trying to extract some information from data base and i am writting this query [CODE]java.sql.Statement s = dbCon.createStatement(); ResultSet r = null; r = s.executeQuery("select * from emp where description="+courseName);[/CODE] If the course have value description="Fundamental of Science" then it says "syntax error at or near of" …  |
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