32,204 Topics
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| | hi,i have a unique problem.actually i wish to put a polarchart developed using JFreechart on the frame that already has components placed on it.What i want to do is to make the particular component overlap the polarchart. How can i do so? i thought of creating the polar chart using …  |
 | Currently I'm creating application to work with PDF documents, just for challenge. I want to know if there is better solution to my idea of possible approach. I broke down application GUI to four main components toolbar with image icons, jpanel for thumbnail preview, jpanel for single page view and … |
 | [COLOR="Red"]The program is given at the bottom[/COLOR] To compile java programs in the command prompt I use the following command: C:\jtemp\MyPack>javac AccountBalance.java -d . Only then are the classes compiled and I am able to run the main() function. When I execute the above command a folder "MyPack" is created … |
| | I have been trying to build a Java program to prompt the user to enter the radius of a circle and the diameter, circumference, and area will be output through a "System.out.printf" statement. I can get the program to prompt for the radius and it will display the diameter, but … |
| | Dear mates, I am am frustrated and bored to learn how to get or calculate coordinates data for Java Graphic API. for ex the GeneralPath 's function curveTo() takes 6 parameters namely x1,y2,x2,y2,x3,y3.I put some random coordinates data into these function and got a crap drawing. :( I want to … |
| | hello, i am new to web services.I may be asking this question wrongly.so forgive me. In my project i have to consume a webservice using java.Could u plz say me how to Create a client api in axis2 in java to consume the webservice that has been created in vb.net. … |
| | Hi all i am new to this foru n this is my first topic, we use erp tool kits to design portals for colleges and schools. this erp toolkit generates the java code in making this portal. so we dont have to do anything with java. But i would like …  |
| | Hi. I'm new to java programming. I have some questions: 1) Does every java source code's [B]class name[/B] (the name after the [I]class[/I] keyword, e.g. [I]class[/I] [B][I]Hello[/I][/B]) has to be started with an uppercase character? 2) Does the java source code's [B]file name[/B] (e.g. [I][B]Hello[/B][/I].java) has to be [U]exactly[/U] the … |
| | Hi , I am running my own built plug-in in Eclipse 3.4.2. I successfully built my plug-in but when i try run my plug-in, eclipse is displaying following below error !SESSION 2009-07-06 17:05:16.181 ----------------------------------------------- eclipse.buildId=unknown java.version=1.5.0_16 java.vendor=Sun Microsystems Inc. BootLoader constants: OS=linux, ARCH=x86, WS=gtk, NL=en_US Command-line arguments: -dev !ENTRY org.eclipse.osgi … |
| | Hi all I was wondering if there was something like Java's JList in HTML. I guess not because I can't find anything like it in the list of the form's input types. What is the easiest way to provide the functionality of a JList? Thx in advance. Greetings, K?! Ps: … |
| | Good afternoon, I have created a little java app in netbeans that I would like to use on a PC without netbeans. Therefore I am looking into how to make an executable out of the project, I found something called "javalauncher" that is suppose to bundle the class of my …  |
 | Hi I am trying to write a file writer inside my mouse event code. I am trying to use the file name that comes from JTextField and write it into a file. Here is my code:- [code] private void jButton2MouseClicked(java.awt.event.MouseEvent evt) { JFileChooser chooser = new JFileChooser(); chooser.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES); chooser.showSaveDialog(this); chooser.getSelectedFile(); … |
| | i an writing a room class java code that returns the temperature status of the room and return if a lightbulb is on or off. how do i write the method for the temperature? public class SittingRoom { String SRlightBulb; int SRTemperature; public SittingRoom() {String InitialStatus = null;int InitialTemp; SRlightBulb … |
| | this program divides the array into 6 segments of two elements each.but with each iteration the new array is not overwritten and it keeps displaying the first two values of the array 'array' [CODE] class tryy { public static void main(String args[]) { double array[]={12.43,34.34,4.432,9.433,4.787,4.2987,57.93,4.279,8.379,83.472,8.9867,879.56}; for(int i=0;i<array.length;i++) { for(int j=0;j<(int)(array.length/6);j=j+2) … |
| | [code] not clear with the basics of nullpont error; trying to create student database import java.io.*; class student1 { String name; int id; public void getdata(String name1,int id1) { name=name1; id=id1; } public void putdata() { System.out.println("\t"+id+" "+name); } } class student { public static void main(String args[])throws IOException { … |
| | Hi. When I add a JComponent to my JFrame, it isn't the size of the remaining space in the frame. I want it to work in a way so that when i add a JComponent, it (and it's contents) stretches to fill the remaining space in the screen... Is there … |
 | Hello everyone! I'm developping a chat application in a client/server context and every client has a shared directory. I want the server to know the directory structure of each shared directory of every client. I'm asking myself if there's an existing class in the Java API that can keep a …  |
| | hi frnds i installed apache 2.0.59 + svn-win32-1.4.0 when iam importing upto 5 mb it's accepting when i upload my java project nearly 12 mb its showing the following error [B][U]Invalid change ordering: new node revision ID without delete [/U][/B] also tried with apache 2.2.11 + svn-win32 1.5.4 even though … |
| | Hi folks, I've got a C# client which can currently communicate with a C# server. I am considering re-writing the server in Java (to make it work better on Linux). Currently, the C# setup uses BinaryReader/Writer on top of a Network Stream on top of a Socket. Is there some … |
| | it copy the file with 0 kb. can anyone please help me. I am working in this over a week no progress. server class [CODE] package javaapplication29; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.PrintWriter; import java.sql.ResultSet; import java.sql.SQLException; import java.util.logging.Level; import java.util.logging.Logger; import java.net.ServerSocket; import java.net.Socket; public class Server … |
| | class A { void show() { System.out.println("show"); } } class B extends A { void disp() { System.out.println("disp"); } } class Prac2 { public static void main(String args[]) { A ob = new B(); ob.disp(); } } /*this thing shows an error */ now my question is :i thought we … |
| | i am getting run time error as provided in title my code is [code] class maxstring { public static void main(String args[]) { String s1="nikhil is a good boy"; int d;int x=0; d=s1.length(); String[] s2=new String[d]; char ch; for(int i=0;i<=d-1;i++) { ch=s1.charAt(i); if(ch==' ') { s2[x]=s1.substring(x,i-1); x=i+1; } } String … |
| | I'm making a Java applet that's a 2D platform game. Each map contains (So far) only collision lines, a background and a foreground image. The collision lines are used for collision detection with pretty much everything that collides with the terrain. For you guys to be able you help, I … |
| | hi im having problem on how to make the output of my programme like this: if you enter a number: (EVEN) * ** *** ***** If you enter a number:(ODD) ***** **** *** ** * im always having an output of: (EVEN) * ** *** **** (ODD) ***** **** *** … |
| | [B][B][COLOR="Red"]Hi I need to develop an application which reads a csv file from a server does data validation and write to a file and then bulk upload the data to an Oracle database. The details of the requirement is The input csv file contains data that has to be populated … |
| | i m not getting the desired out put .....according to the program ,it will have to give the movement of the circle in the direction of the diagonal. [code=java] import javax.swing.*; import java.awt.*; public class DrawCircle{ int x=70; int y=70; public static void main(String[] args){ DrawCircle dc = new DrawCircle(); … |
| | Hello! I'm taking a class in JAVA and learning a lot, but i'm stumped on a project where we are to find the difference between two dates. The method iv'e used is a little unconventional, I don't know if there is aproblem with the way i've structured the loop below... … |
| | [B]Background[/B] Most Java web reporting tools, especially those have some BI characteristics, often claim to end users that their products are simple to use. Some reporting tools promise that they can allow end users to make various statistical reports follow their own inclinations, and evenmake a report just by drag … |
| | I have written some code for an Inventory program that I am working on for a Java Class. I keep getting the cannot find symbol error. I have been trying to fix it and can not. Some simple guidence would be nice. Here is what I have already with errors … |
| | Here is a basic program I compiled and tried to run. import javax.swing.*; [code]import java.awt.*; public class GUITest extends Frame{ public GUITest(){ super("A basic GUI"); JPanel panel = new JPanel(); panel.setLayout(new GridLayout(2,2)); setVisible(true); } public static void main(String [] args){ new GUITest(); } } [/code] When I run it, the … |
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