I/O / Streams :: 3D Project - How To Activate Key Repeating With Action Listener

Dec 8, 2014

I am working on a 3D-Projekt, but that's not the point. I wanted to call a function to turn the camera and want, that the function ist called while the key is pressed. I tried following:

private ActionListener actionListener = new ActionListener() {
public void onAction(String name, boolean pressed, float tpf)
if (name.equals("Camera Left") && pressed) {
setViewAngle(-1);

I think, I have to change the ActionListener "onAction", but I can't remember in which way. In the actual code the programm only once perform the action when the key is pressed.

I already tried :

while(pressed) {setViewAngle(-1)}

But that didn't work, but get the whole programm to halt.

So I thought of key repeating.

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Action Event Doesn't Seem To Activate ActionListener

Mar 10, 2015

I have a frame showing some textfields and a couple of buttons, the classical "Ok" and "Reset" buttons, which are supposed to confirm the values of the textfields (closing the frame) and reset them respectively.

I think I thoroughly followed the "delegation method procedure" for managing event, that is , create the button object, define a listener class (implementing the ActionListener interface) , and add the listener class to the button using the "addActionListener" method . But there's no way to make the whole thing work.

No exception. Only when I click the button the "actionPerformed" method of the listener is simply ignored, as if it didn't exist.

Here is the code :

public FrameViewAddEstrazione (String ExtrPath) {
try
{
FilePath = ExtrPath;
F = new JFrame ();
PP = new JPanel();
PD = new JPanel(); // pannello data

[Code] ....

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Oct 5, 2014

Whenever i click start button it will just printout start to the jtextfield it wont start the time .

import java.awt.*;
import java.util.Date;
import javax.swing.*; 
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.event.*;
 
[code]...

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Feb 22, 2014

I'm using Eclipse with the Window Builder Pro plugin to create a Java program. I noticed that when I had Eclipse create an action listener for a combobox in a Swing GUI it created an AWT listener.

Did I choose the wrong type of listener? I want my code to use the Swing components because I understand that they are more portable.

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JPanel - JButtons Not Using Action Listener

Apr 22, 2014

In my code 0,1,2 work fine an present my prompts an use my listener correctly but for some reason 3-6 is not an I don't know why? Here's my attached code.

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
public class Guess extends JFrame

[Code] ....

I meant 3-5 not 6

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Jul 14, 2014

I have three JComboBoxes. When the user selects an entry in the first JComboBox the entries in the second are set. For this I use an Action extends AbstractAction which is bound to the first JComboBox.

I have also bound an Action to the second JComboBox.

Problem: this also fires when the entries on the second JCombox are added which leads to a Nullpointer.

I need a Listener which only reacts to user input, and does not react when the model of the JComboBox is changed.

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Split Panel In Two Halves And Add Action Listener To It

Mar 5, 2014

Which contains a tabbed pane and in the sub panel it has two sub panels

1. new user
2.list if i click a button in panel ---

one new user --- i need to get call a function which is of other class so that it displays the list in the right panel..

import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
public class Test extends JFrame{

[code]...

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May 16, 2014

I'm not a java developer, i'm a tester. I am currently testing a java swing application and to do that I have to automate how its used. IE I have to write code which will press buttons for me rather than depending on an end user to do this. I have managed to reverse engineer the entire application (hooray for me), however I am struggling to work out how to invoke methods that would typically be kicked off by a user pressing a button. how to I can call actionPerformed(ActionEvent ae) method which sits in the ATMMainPanel class?

I will be calling it from inside another method which is the equivalent of the main() method.

Java Code:

public class ATMMainPanel extends JPanel implements ActionListener {
[declarations here]
//here - User is pressing the Enter button after putting in pin.
public void actionPerformed(ActionEvent ae) {
[code performed when button is pressed]
} mh_sh_highlight_all('java');

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Swing/AWT/SWT :: Action Listener Does Not Work With Button Click

Feb 22, 2015

I have buttons created on a frame and then I register the listener from a controller in a controller-view relationship.

When I click the button on the face, the action never executes for some reason. I thought maybe there was a problem registering the listener but I can call the buttons doclick() method and it executes as it should. Perhaps I'm overlooking something really obvious here but I can't see it.

btnEight = new JButton( "8" );
// btnEight.addActionListener( controller );
btnEight.setBounds( 212, 90, 41, 23 );
frame.getContentPane().add( btnEight );

and then I add the listener

public void setController( ActionListener theController ) {
Component[] components = frame.getContentPane().getComponents();
for ( Component component : components ) {
if ( component instanceof JButton ) {
JButton button = ( JButton ) component;
button.addActionListener( theController );
}
}

again, when i click the button nothing happens. but if i add the following code

btnEight.doclick()

the actionPerformed invokes in theController as I intended.

You can see the entire project on GitHub so you can see the full context. The controller class contains the listener and the view class contains the buttons.

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Involving Action Listener And If Statements For Multiple Conditions

Jan 25, 2014

I'm writing a program for exemplary reasons that is basically two text fields, one for a username, and one for a password. the way its written is asking testing for what is inputed into the text fields if its equal to a "valid" username and password. if it is, a variable representing that is set equal to 1. there is another if statement asking if the actionevent.getsource is equal to the name of the textfield. the issue I had was that when I ran the program, it seemed to only test for the first condition, so I got the same result from the program regardless of what I input into the text field.

The Code

Main class:
import javax.swing.JFrame;
public class Alpha {
public static void main(String args[]){
log l = new log();
l.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
l.setSize(360, 240);
l.setVisible(true);

[Code] .....

The code originaly was written "eve.getSource() ==" but I changed that to see if it would resolve the issue with no avail. With it written this way, the program does nothing upon entering the text and pressing enter. Currently, there is nothing written to change the variable "val" to 1 to show that the username is valid. I did this because I can't figure out how I would go about doing this.

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How To Add Action Listener To Code To Make Calculator Work

Mar 7, 2014

here is the code i already have made;

import java.awt.*;
import javax.swing.*;
public class EX_7_2 extends JFrame
{
public EX_7_2()
{
setLayout(new BorderLayout(5, 10));

[Code] ....

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IOexception Expected Error Action Listener Method

May 9, 2015

Need to write two files but getting an expected exception error.
 
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.Scanner;
import java.io.FileWriter;
public class TestingPanel extends JPanel

[Code] .... 
 
TestingPanel.java:49: error: unreported exception IOException; must be caught or declared to be thrown
FileWriter outputFileQuestions = new FileWriter("Test.txt");
^
TestingPanel.java:50: error: unreported exception IOException; must be caught or declared to be thrown
FileWriter outputFileAnswers = new FileWriter("Answers.txt");

[Code] ....

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Servlets :: Not Able To Deploy Project Due To Listener Class

Aug 1, 2014

I have data base connection which i have configured via a listener class i configured properly in DD but still i am not able to deploy the project and server log show that startL.java listener class was not found why is this so as config is proper with the name

here is my server log

[2014-08-01T20:53:59.112+0530] [glassfish 4.0] [SEVERE] [] [javax.enterprise.system.core] [tid: _ThreadID=34 _ThreadName=admin-listener(3)] [timeMillis: 1406906639112] [levelValue: 1000] [[
Exception while loading the app : java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: java.lang.IllegalArgumentException: java.lang.ClassNotFoundException: contpack.startL.java]]

**if i remove the Listener tag then app runs fine**

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I/O / Streams :: Unable To Read File Using Google Guava Resource Library In JBehave Project

Jun 25, 2014

I'm getting an IllegalArgumentException returned when I try to get a file using guava library.

I previously had the function working when the file was in a different location, before I switched to running JBehave, my steps run but it fails to find the resource, even after I've moved it.

The code being executed is (this worked previously before using JBehave):

String xMLTemplateFileName = "OBOE-confirmation"
public static void setXMLTemplateFile(String xMLTemplateFileName) throws IOException {
URL url = Resources.getResource(xMLTemplateFileName+".xml");

The file I'm looking for is in the root folder for src/main/resources and also src/test/resources, previously I had it within a completely different location before I switched over to JBehave. I've tried it within a subdirectory in the same locations too.

I've recently updated the pom.xml to try to include the location required.

Extract from pom is below:

<!-- JBehave Build Details -->
<build>
<pluginManagement>
<plugins>

<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>jaxb2-maven-plugin</artifactId>
<version>1.6</version>

[Code] ....

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Servlets :: There Is No Action Mapped For Namespace And Action Name Associated

Nov 16, 2014

This is my first servlet program. I wanted to try a web application where "register" user module will be in servlet program.I can access my index.jsp but when I enter values and click submit.

I get "There is no Action mapped for namespace [/] and action name [RegisterUserServlet] associated with context path [/TrainingApplication]. - [unknown location]".

Here's my index.jsp file:

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>

[code]....

I am using apache-tomcat-8.0.14 server.

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Apr 21, 2015

I got an application with JScrollPanes; they seem to work fine, but fresh after the start, their scrollbars seem dead:I only begin to see their components after resizing the application window with the mouse.Clicking the scroll bars or their buttons (in Metal Look&Feel) does nothing.And there is no 'knob' visible.Dragging the side or bottom of the application window suddenly shows all and makes them operational.My ComponentListener on the window that contains the scrollpanes only does a repaint on the components inside the scrollpanes.Adding such to the code has no effect, neither does a repaint on the scrollpanes themselves.

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Jul 16, 2014

I am working on a web application for store file maintenance. Need to add a new Check Box "Activate Selected Menu items" on the page.

what code i should write to add a Check Box.

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Apr 12, 2014

i downloaded a sample database code of an online payroll system. How can i assemble it to know how it works.
the files include php and mysql files. it is to build an online payroll system

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Repeating Constructors With Same And Different Parameters

May 26, 2014

So while experimenting with constructors, repeating constructors with the same parameters, and with different parameters. I got an output -explaining how I got it.

I made 2 classes. a "support class" (has all the info) and an "execute class" (executes info).

Support:

package inschool;
public class Constructors {
String video;
public Constructors() {
video = "frozen";

[Code] ....

Execute:

package inschool;
//this is part of Constructors class
public class App{
public static void main(String[] args){

[Code] ....

The Output:

the video name is frozen
Second constructor running
Constructor running!
the video name is frozen

Output Explanation:

constructor call number 1 and 3 are the same (essentially) and both refer to the same constructor.

My Question: if both call #1 and #3 refer to the same constructor, why is the output for #1 "the video name is frozen"

while the output for #3 used both methods in the accessed constructor-with the resulting output as
"Constructor running!"
and
"the video name is frozen"

I double checked the output-and this time made sure to scroll up ... its the same result

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Jun 26, 2014

I tried many times to return a string from java project to an android project But it keeps sending incorrect values as in 2 as it should be 1 here is an example.

Java Project:

boolean somethingboolean = false;
if(something.equals("1")){
somethingboolean = true;
}
public static String getString(){
if(somethingboolean == true){

[Code]...

Android project:

System.out.println(JavaProject.getString())

and in the android project it prints "FALSE"

So what should i do?

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Jun 22, 2014

My homework assignment is to create a program that reads two military times and then prints out the elapsed time. I've got all that down and ready to go but then the other part of this project is to have it loop until it is terminated manually. So at the end where it asks for a 'Y' or 'N' input answer is where I know i need to implement a do-while loop or switch statement, I'm not sure. how to make the application repeat until told to quit.

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Aug 21, 2014

I am working on a bingo project and created random numbers between 1 and 75 to generate. I have it set up that it shows the number in a text box and changes the color on the board if the number is called. When I test the program, some numbers are highlighted in addition to the number called. I believe this is because extra numbers are being chosen, but not being noted in the text box. Below is my code for the unique random numbers.

int CallNo;
String CallerTxt = new String();
public void CallNum() {
Random RandCall = new Random();
//Generate Caller Random Number
CallNo = RandCall.nextInt(75)+1;

[Code] ....

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Aug 5, 2012

I have a problem where i have to write some code to read through an int array and print out the different integers and how many times they occur. For example:

if the array contained the numbers 1,4,2,3,5,4,4,7,5,4,3,6,8,6,4,

i would need the print to appear something like this

integer: 1, times: 1
integer: 4, times: 5
integer: 2, times: 1

etc

as the array is read sequentialy from element 0 to the end. the program should find the integer value in the first element (increment a counter by 1) and then search all other elements to see if the integer reoccurs (counter++ for each time it reappears). obviously the counter would be the 'times' value in the second column.

My problem is i can get this accomplished yet i cant get the program to recognise when it has already registered an integer in a previous element and skip to the next element looking for a new integer. SO for each element in the array it prints the integer and then searches the entire array for the integer again and increments the counter accordingly. so in essence there is a line printed for each integer the number of times it actually occurs.

I simply wish to have my code to find an integer and the number of times it occurs. and then disregard the elements it has registered the previous integer in.

Also, keep in mind that i am NOT permitted to use any new data structures/arrays for storing/remembering values. I can only use int and double variables throughout.

what i have so far is this: with the array being customerID[] :

Java Code:

int num;
int counter;
for(int count = 0; count < customerID.length; count++)
{
counter = 0;
num = customerID[count];
for(int count2 = 0; count2 < customerID.length; count2++)

[Code]...

The output for the int array 1,1,3,0,3,2,0,4,1,3, looks something like this:

Integer: 1, Times: 3
Integer: 1, Times: 3
Integer: 3, Times: 3
Integer: 0, Times: 2
Integer: 3, Times: 3
Integer: 2, Times: 1

[Code]...

and as you can see lines are repeated for each time the same integer occurs in a new element. i just need my code to skip an element if the integer has been previously encounterd and recorded. i.e i need it to look more like this :

Integer: 1, Times: 3
Integer: 3, Times: 3
Integer: 0, Times: 2
Integer: 2, Times: 1
Integer: 4, Times: 1

with the first encountered integer being checked throughout the array and then moving to the next integer/element which is not the same as any previous.

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Oct 6, 2014

I made an Analog Clock and its working but when a remove the filloval (Background) the seconds hand keep repeating itself..here is the code

import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import javax.swing.JFrame;
import javax.swing.JPanel;

[code]....

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Nov 9, 2014

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Mar 15, 2015

I am making an MVC program and I am not allowed to put the action listeners in the view class. I was able to get one button working fine but since I am unable to reference them I cannot give them both individual responses.

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class Controller {
HobbyList model;
ListView view;

[code]....

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