Project Is Working On JFrame - But Not Working On JApplet
Apr 10, 2014
I am developing an application to share my client screen with server, it is working well on swing. But i want to develop as web application, i am trying to using applet. But i am facing the fallowing problem..,
1) The Applet screen also open and project also running well on server mechine. But unable to see the client screen on the server.
2) The problem may be to display the JDesktopPane or JInternalFrame.
My working Server Code extends withe JFrame..Java Code:
package remoteserver;
import java.awt.BorderLayout;
import java.awt.Container;
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
import javax.swing.JApplet;
import javax.swing.JDesktopPane;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
[code]....
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Sep 12, 2014
I have created a standalone project and included its jar file in lib folder as follows :
Sample->lib>jar files
sample->src->source files
After constructing my Sample application jar file as sample.jar and trying to include it in my another web project as follows:
WebSample->WebContent->WEB-INF->lib->sample.jar
and constructed war files as WebSample.war
After deploying it is not able to access jar files of sample application and throwing NoClassDefFoundError. Where as if I am running it as standalone project it is working. What is best solution to resolve this issue.
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Feb 5, 2014
I've been working quite a bit with a login system the past couple of months and I now have a version that I would like to try "for real" by extracting it as a runnable .jar or .exe file. I've looked at a couple of guides that told me how to do this properly, but even after following every step precisely it didn't work.
One of the guides I tried: 3 Ways to Create an Executable File from Eclipse - wikiHow
Double clicking the file or selecting it and pressing enter does nothing, the computer loads for a second and then nothing happens. I don't receive any visible errors when extracting the program, either.
However, when running the file from the command prompt I do receive an odd error:
Microsoft Windows [Version 6.2.9200]
(c) 2012 Microsoft Corporation. All rights reserved.
C:UsersUserName>java -jar Login.jar
Exception in thread "main" java.lang.IllegalArgumentException: input == null!
at javax.imageio.ImageIO.read(Unknown Source)
at LoginSystem.Data.updateData(Data.java:347)
at LoginSystem.Data.<init>(Data.java:309)
at LoginSystem.MainFrame.<init>(MainFrame.java:42)
at LoginSystem.MainFrame.main(MainFrame.java:457)
C:UsersUserName>
I must say I don't quite understand the error, it seems to be unable to load an image which is odd considering the program works fine without any errors at all in Eclipse.
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Sep 5, 2014
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import java.sql.*;
class Stock extends JFrame implements ActionListener
[Code] ....
Everything is fine but the scroll pane is not working!
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Sep 5, 2014
Why the JFrame is not working
// Project: RestaurantBillCalculator.java Calculates a table's bill.
// Import statements for different classes
import java.awt.*;
import java.awt.event.*;
import java.sql.*;
import java.text.*;
import java.util.*;
import javax.swing.*;
public class RestaurantBillCalculator extends JFrame
[Code] ....
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Aug 29, 2014
Why in my program keys are not working, what I forgot to write?
import javax.swing.JFrame;
public class Main {
public static void main(String args[]) {
JFrame frame = new JFrame("Stickman");
frame.setDefaultCloseOperation(frame.EXIT_ON_CLOSE);
frame.setSize(450, 490);
[code]....
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Mar 5, 2014
I got my code into a jar, but when I run it I get his message:I just used Eclipse to make my jar and I thought I did it right but I guess not.
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Apr 24, 2014
I wrote a piece of code:
for(int i = 0; i < x; i++){
System.out.println("Enter students full name:");
sName[i] = result.fullName(sc.nextLine());
sExam[i] = result.examName("VB");
System.out.println("Enter students exam score:");
int scor = sc.nextInt();
sScore[i] = result.examScore(scor);
sGrade[i] = result.examGrade(scor);
}
When i run it i get:
Enter number of students:
1
Enter students full name:
Enter students exam score:
The problem is, i cant enter "full name", program is just jumping to the next step "exam score".
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Oct 9, 2014
I am working on a fairly simple program where I have a colour change three times using the red green blue spectrum. The problem is that I keep getting a result of zero no matter what I do.
import java.awt.*;
class RectangleMain
{
public static void main (String[] args) {
ColouredRectangle blocky = new ColouredRectangle(50, 100, 20, 40, Color.red);
System.out.println(blocky.getColour());
blocky.mixColour(Color.blue);
[code]...
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May 31, 2014
I'm programming a game, but the keyListener doesn't work. Here is the source code:
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
public class InputHandler implements KeyListener{
public InputHandler(Game game) {
game.addKeyListener(this);
[code]....
My Question is: Why will it not say "up", if I press "w"?
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May 5, 2014
I'm having a problem where an if statement isn't working. In the Person class boolean olderThan ignores my if statement so it always returns false and I just don't get why that's happening.
import java.util.Calendar;
public class Person {
private String name;
private MyDate birthday;
public Person(String name, int pp, int kk, int vv) {
this.name = name;
[code].....
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Feb 25, 2015
I have added a Simple Jar file in Eclipse Proect->BuildPath->jar file but class Inside that are not showing in My project this is my Project Structure and I have all ready checked in Order and Export..But jar file is not working.
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Sep 7, 2014
I am learning out design patterns and doing a little fun project on Model Control View (MCV). I got the concept down, it is pretty simple for the most part. However my buttons are not working.
Here is the code:
public class Controller
{
private Model model;
private View view;
Controller(Model model, View view) {
this.model = model;
this.view = view;
[code]....
It runs but nothing. My other questions is how can I make a box that will print the results.
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Apr 4, 2014
I need to find out if one array list is a sub-sequence of another. The elements in the first list all need to be in the second list and must be in the same order. So s1<n, t, a> is a sub-sequence of s2<q, n, f, r, t, d, a>, but s1<a, a, t> is not a sub-sequence of s2<a, t, a>. I need to use iterators to go through each list, and I should only go through each list once (since it has to be in the same order) so nested loops don't seem like they would work because it would start at the beginning of one list every time it moved to another element in the outer loop's list.I seem to have an issue where the itr1. next()
is ignored when in an if statement.
My current code just stalls and will never stop running. I've also switched things around and put the not equal check after the if it is equal and it throws a NoSuchElementException.
import dataStructures.*;
public class Subsequence3
{
public static void main(String[] args)
{
ArrayList<Character> s1 = new ArrayList<Character>();
s1.add('n');
s1.add('p');
s1.add('a');
[code]....
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Feb 2, 2014
the problem which im facing when executing jar file is it is not working same as when i run file using the IDE.When run jar file, it won't open the new frame even the user and pass combination correct.But when i'm compiling using the IDE, it works as charm. The main menu popped up after i logged in.I've tried Clean and Build and it's not working too.
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Oct 14, 2014
I code a program using Eclipse Keppler with Java 8.0. I made a program with 2 JPanel. The first JPanel is working well. From a button in first JPanel, I excute second JPanel, but It is not working. No error when I compile the code. Here is, I attached the source code.
import javax.swing.*;
import java.awt.Color;
import java.awt.event.*;
[code]....
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Oct 29, 2014
working on a project but cant seem to get my while loop to restart i want to restart this guessing game if the user inputs y at the end otherwise it will end.
import java.util.Scanner;
import java.util.Random;
public class GuessingGame{
public static void main(String[] args){
Scanner in = new Scanner(System.in);
String again = "y";
while(again=="y"){
[code]....
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May 5, 2015
i am trying to make taxi meter which shows the current price.Rightnow I have to click startmeter afterevery 1 minute than it's update the new price but I want it to update automatically once the price change after 1 minute instead of me pressing startmeter everytime.This is my 1st time I am using timer class. I am not sure why timer is not working.
import java.awt.*;
import java.awt.event.*;
import java.util.Calendar;
import java.util.GregorianCalendar;
import javax.swing.*;
import javax.swing.border.*;
import javax.swing.event.*;
import java.awt.event.ActionListener;
import javax.swing.Timer;
import java.awt.event.*;
[code]....
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Jul 18, 2014
i have a problem with the jsf 2.0 version with inplace select,in jsf 1.2 it was working, but in jsf 2.0 it is not
problem: when select one of the item in inplace select dropdown,I am trying to update it with the selected value using the a4j:ajax tag, using but the control is not calling the update() method
<rich:column id = "locationClmn">
<f:facet name = "header">
<h:outputText id = "LocationHeder" styleClass = "headerText"
value = "#{messagesRefdata['notifications.locations']}"/>
</f:facet>
<c:set var = "locations" value = "#{notificationConfigurationBean.listOfLocations(ntc.notification)}"/>
<rich:inplaceSelect value = "#{ntc.location}" showControls = "true"
[code]....
I have even tried f:ajax, execute= "@this", immediate = true.
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Apr 13, 2014
there is no divider in the operation. Iadded a print i to confirm the loop works. I tried with and without the brackets..Can you use the i in the operations of the loop? I figured I could since printing it out give me a list of numbers
public class harmonique {
public static void afficherHarmonique( int wholeNumber ) {
int harmonique = 1;
for( int i = 2; i <= wholeNumber + 1; i = i + 1 ) {
System.out.println ("i =" + i);
harmonique = harmonique + (1/i);
System.out.println ("harmonique =" + harmonique);
}
}
}
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Jun 2, 2014
Currently the while near the end is not working in netbeans. It is saying illegal start of type. This whole section was working before when it was within the public static void method. I moved it to a separate class to try and clear up a, static variable problem. My question is can i fix it to keep it structured this way. Or do I have to put it back into the main method and try to work out the static variable problem a different way.
public class InventoryProgram {
double[] dvdprice; // defines variables
int[] dvdnum;
int[] dvdstock;
String[] dvdnames;
int count;
double total;
[code]....
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Feb 26, 2015
The class gets complied but when I run the program the submit button doesn't work, how do i get that to work?
/**
* Orchestration class for Account
*/
import java.awt.*; //Importing the java.awt.* class
[Code].....
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Feb 14, 2014
I'm trying to get a progress bar to work on my GUI.
This is what I have so far, the parameters are taken from another class that takes in an image in packets from a Raspberry Pi and stores them to a file on PC.
public void ImageInfoReceivedHandler(int sizeOfFile) {
progressBar.setMinimum(0);
progressBar.setMaximum(sizeOfFile);
progressBar.setIndeterminate(false);
[Code] .....
The println are printing out the correct values and they are being implemented in the methods, but nothing is happening in the GUI.
I have a thread setup in the GUI when a button is pressed
getImageButton.setText("Timer Started");
transmit = new transferImage(port);
lblImgProcess.setText("Getting Image, Please Wait");
transferThread = new Thread(transmit);
transferThread.start();
So the thread starts and image is then transmitted, does the progress bar need to be in that event handler?
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Nov 11, 2014
when i input a positive integer it works but when i input a negative number it doesn't work
my pseudo code:
READ input
WHILE( NOT CORRECT INPUT)
READ INPUT AGAIN;
ENDWHILE
DECLARE array arr[input]
FOR(i=0 to input-1)
arr[i]= Random number from 0 to 100;
ENDFOR
DISPLAY ARRAY
error message when i input -5 : Exception in thread "main" java.lang.NegativeArraySizeException atPosNeg.main<PosNeg.java:36>
import java.util.*;
class PosNeg{
public static void main(String args[]) {
Random generator = new Random();
Scanner scan = new Scanner(System.in);
[code]....
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Apr 28, 2015
this is my progarm
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Random;
public class FileHandlingDemo {
[code].....
As you can see my Intention is to save randoly generate Integer in the output file And this is not working but if I use Something like this
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
public class FileHandlingDemo {
[code].....
it's working fine reading that from Input.txt and writing that data in output.txt file. but not in first case Both file are in working directory already created.Where is wrong?
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Jan 22, 2014
I am trying to finish this servlet that adds a new course to my courses display. im using a check box so the user can pick what the prerequisite are for the new course they want to add. so if they check cs201 , it will add cs201 as a prerequisite for that new course.
for some reason my checkbox will only add the first checkbox that is clicked. like if i add a subject , and click the check boxs for cs203 , cs202, and cs201. it will only grab cs201 and add it to my course display. it wont grab all 3. how can i grab the other info thats checked?
package cs320Homework1.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
[Code] .....
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