How To Set State Of Radio Button Based On Configuration File
Apr 10, 2014
I am using Java Swing to create a GUI. I have some radio buttons on a JFrame that gets opened when the user makes a certain selection. I want to read a config file to have the radio buttons selected or deselected when the form is opened to indicate the current state of the radio button based on the saved config file.
How do I go about setting the radio button as selected (visibly selected) when I open up the JFrame?
I was trying to use RadioButton.setSelected(True); but this doesn't actually visibly select the radio button.
I'd like to disable/enable SelectManyCheckbox and the SelectOneMenu based on my selection. I have two radio buttons to be selected whether A or B. The SelectManyCheckbox and the SelectOneMenu should be disabled at the first run. When the user selects “A” the SelectManyCheckbox and the SelectOneMenu should be enabled and if the users selects “B”, the SelectManyCheckbox and the SelectOneMenu should be disabled and the items should be empty. I tried to use <f:ajax render="certificates"/>, but it doesn't work properly.
What would be the simplest way of creating a Dialog that can add TextField dynamically based on whether a radio button option from the dialog box is selected. I thought of JOptionPane.showMessageDialog and adding a JComponent though I would not be able to add a TextField on the fly and I would not be able to add ActionListeners. The dialog would initially contain some radio buttons, labels and textfields.
For some time i've been trying to rewrite my XML configurated webapp into one that has Java Based cofiguration. Unfortunately ,even after going through many tutorials i've been unable to do so.
I'm working on a GUI application, I'm building it based on an example of a image provided and I am having an issue with my radio boxes, well the easiest way to explain will be if you look at the too attached images , the example im working from has the radio-boxes transparent they are the same color as the background image, my radio boxes seem to sit ontop of the background image with their default grey border, How can i make my radioboxes blend into the background like in the given example?
Im using Netbeans GUI toolkip to build this app, for the background image in the jpanel i just created a label and set the icon to the image i wanted.
I have been trying to get my radio buttons to display text when they are selected in a textbox but for some reason no matter what i try it wont display. Here is my code i have removed my attempt to get the action listener working.
package listVsSet.Desktop.copy; import java.awt.BorderLayout; public class ListVsSetGui extends JFrame { private JPanel contentPane; private JMenuBar menuBar; private JMenuItem mntnListVsSet;
I am writing code for a form in which i want to display data by selecting radiobutton.The code is working for single radiobutton but it not work when i select the other radiobutton.
Capture.PNG1.jpg
the code is given below:]
private void jRadioButton1ActionPerformed(java.awt.event.Action Event evt) { // TODO add your handling code here: int LIMIT = Integer.parseInt(jTextField2.getText()); int ULIMIT = Integer.parseInt(jTextField3.getText()); { DefaultTableModel model = (DefaultTableModel) jTable1.getModel();
I am making a quiz app and stuck with this problem. User is presented with question with options he select one radio button and move on to next question by clicking next button.
Now when user clicks on the previous button to change the previous selction , I want his previous selection to be shown selected. How can I do that.
How do you make it so that you can select 2 buttons in a radio button group? for example: If I have 7 radio buttons, and I want to be able to select 2 of the 7 instead of 1.
I'm trying to make it to where each button is supposed to display the country's flag and a description. As of right now, I've hit a roadblock and haven't been able to get past it. As of right now, without the errors in the setDisplay method where setTitle and the other two are undefined for that type, I get each country's name listed as a radio button.
However, I haven't been able to get anything else to display.
import java.awt.*; import java.awt.event.*; import javax.swing.*; public class Flags extends JFrame{ private String[] flagTitles= {"Canada", "China", "Denmark", "France", "Germany", "India", "Norway", "United Kingdom", "United States of America"}; private ImageIcon[] flagImage= {
I am creating an application in core java where i am using database. I need to create a database configuration file & include it all other files. So, how can i do that ?
Java Code:
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); Connection con = DriverManager.getConnection("jdbc:odbc:MYDSN","system","tiger"); mh_sh_highlight_all('java');
I cannot do this in an interface since only abstract methods exist there. I tried to create an another class file to extend it but my program is already extending other class i.e. javax.swing.JFrame..How can i implement this ? just by creating the object of that class in main method ?
In a form i used <h:commandButton> i called a Javascript function. Though the function returns false , form is submitted and action method is called. I used like this
I am using RAD and I copied the Tomcat server from server to local folder. Then I tried to add this tomcat by adding new server. I got the error in title. After searching, I copied the Tomcatconf files to myworkspaceserver omcat at localhost-config, restart RAD and refresh. But now I am getting the error that the conf may corrupted or incomplete.
I have a library that I'm writing, the library contains a spring xml configuration file (lets say it's called libraryContext.xml) that sets the library up correctly for runtime, it also includes a test spring xml file that sets the library up for test by importing libraryContext.xml and overriding certain dependency injection beans (the library basically connects to a real database under normal conditions and uses dummy DAO's under test conditions). That bit is all fine.
The thing is, when I build the jar for the library (lets say it's called library-0.1.jar), the jar does not seem to contain the libraryContext.xml and that means that I can't import library.xml into my applications context.xml.
Basically, I have this line in my applications context.xml
Unsurprisingly, since the xml file is not contained in the library-0.1.jar, the error I get is,
Java Code:
Offending resource: class path resource [applicationContext.xml]; nested exception is org.springframework.beans.factory.BeanDefinitionStoreException: IOException parsing XML document from class path resource [libraryContext.xml]; nested exception is java.io.FileNotFoundException: class path resource [libraryContext.xml] cannot be opened because it does not exist mh_sh_highlight_all('java');
With respect to potential solutions to the above problem, I could:
1) physically copy the libraryContext.xml file (and its other *.xml and *.properties dependencies) into the application, but then I'd have to maintain duplicate files - I don't like this option.
2) find out if there is a better way to handle this problem from people who know better. E.g. is there a way to embed the libraryContext.xml file (and it's dependencies) into the jar file so that it can then be imported into the application. I've spent a while on google trying to figure this out and haven't come up with anything overly useful (perhaps I've been using the wrong search parameters).
I want to create a singleton for DirContext for LDAP configuration, hence i have used the initialize on demandclass holder idiom as shown below
public class SlmApplicationContext { /** * inner class to hold the instance. */ private static class Holder { private static DirContext instance = new InitialDirContext(); }
/** * Method to get the singleton instance of this class. * @return SlmApplicationContext */ public static SlmApplicationContext getInstance() { return Holder.instance; } ... }
Now the problem is if i close the DirContext.close(), when the next request comes the singleton wont work as the dir context is already closed, hence it will create a new dir context for each requests. Which breaks the singleton concept, hence how we can ensure the singleton works fine even with DirContext.close()?
For an assignment I need to read an input text file and evaluate the triangle based on the data found in the text file which consists of an unknown number of groups of 3 numbers (Each group representing a different triangle). According to the project specifications I need to have a main method and several other methods. I have the main method set-up to receive data correctly but I am confused as to how I would get the values out of the text file and use them in the main method. For example, if I were to call the computePerimeter method in my main method, how would I make sure I get the correct perimeter for the given data?
Here is the code I have so far:
import java.io.*; import java.util.Scanner; public class TriangleEvaluator { public static void main(String[] args) throws FileNotFoundException { Scanner in = new Scanner(new File("triangleData.txt")); double s1; double s2; double s3; while (in.hasNextDouble())
I want to know if I can get the entire log4j.properties file constructed in Java code. I am not talking about configuring the logger using Java code.I have a logger that is already configured using a file. I want to get access to either Logger or LogManager (any other?) class and print the current configuration that is in memory.
Hello World program. We had to build it. Write a basic Java program that will implement one class to store a state of a project. The class should have one property to store a textual name of the state. When a object of this class is created the initial state should be "Open".
1) Class should have one method next() which will move the project to the next step in the sequence: Open - In progress - Closed.If next method is called for a project in the Closed state it should do nothing.
2) Class should have a method close() which will move the project into the Closed state.
3) Class should have a method print() that will output a current state of the project.
Submit a java code file as your assignment. Do not hesitate to contact me if you have any troubles with the assignment.
I have been working on this thing for almost a week, and really don't have a clue on what to do. I know I have to use a string = open, and I know I have to create an object. I don't have a clue on how to do this. I have read the chapter so many times, I almost memorized it, but what he wants is nothing like our demo in the book. the Book used set and get, and utility scanner, but he doesn't want any of that. Just a basic code that will move from Open --- in progress --- closed.
The best I can tell what he wants is when I set the object to open it will display " project is open", then when I set it to " in progress" it will read project is "in progress". I don't have a clue what close is suppose to do, or the print method.
I am working in software testing, specifically automatic test cases generation. Among the existing forms of test cases, my focus is on the test cases that are composed of sequences of events such as _.event1.event2 eventx()
However, the events can be classified into: sensitive and insensitive. The latter does not affect the system's states, and hence, it can be ignored; while the former affects the states. Anyhow, the sensitive events in the test cases may lead to states explosion and there is a need to prevent that. Therefore, some techniques suggest using one variable to present states and group all similar states together such as using len variable in circular queue. Relatively, the states can be represented by using specific drawings such FSM.
For example, the test cases for circular queue may look like:
len=1, rear=0, front=0 and dataQ[0]=0 len=0, rear=0, front=1 and dataQ={0} len=1, rear=1, front=1 and dataQ[1]=1
len=1, rear=0, front=0 and dataQ[0]=0 len=2, rear=1, front=0 and dataQ[1]=1 len=1, rear=1, front=1 and dataQ={1,0}
As can be seen, every addition/deletion produces a new state. A state is composed of 4 variables: len, rear, front and dataQ. The 1st three variables are integers while the dataQ is an integer array. Nonetheless, the states produced by different test cases can be identical which wastes effort and time. So, there is a need to optimize these states. The search techniques were suggested where the problem can be represented as a search problem and the technique is applied. If we consider Len as a state, then we will have: len=0; 0QSize. However, this does not represent the state but it suits for classifying the states into groups.
In terms of states representation, State Machine/Map Compiler (SMC) was suggested as a modeling mechanism that takes the state machines (i.e. FSM) drawing and generates the code in any preferred language. In SMC, the FSM is represented in a specific syntax (state---transition----next state) and saved in a file (.sm). This file will be compiled by SMC to generate a context class which includes definitions of states, transitions and actions in FSM but still need to be triggered by another class. This class has to call the transitions that modifies the state.
We had created that class and implemented all the methods with their transitions. However, the FSM used was based on 1 variable only (i.e. len). Besides, we are still looking for the SMC results as they will be the input for any search technique to be applied. Supposedly, the states generated by SMC can be used directly in the search technique but this is still questionable.
