How can I add values from a JComboBox to a JTable ? I've created a drop down list and a button and I want the values to be added to a table whenever i click on the button (add).
View RepliesHow can I add values from a JComboBox to a JTable ? I've created a drop down list and a button and I want the values to be added to a table whenever i click on the button (add).
View Replies View RelatedI have a student class with fields names and Gender. Now, I have a students' array. such that I can create multiple students' classes: student a, student b, student c e.t.c and store them into the students' array. Now, I store this students' array in a JComboBox and want to only display the names of these students in the array. Such that the JComboBox lists only the names of student a, student b and student c. . When a user clicks on a selected Item on the JComboBox, even though, it was a student's name that was selected, I want the selectedItem to be a object of the Student class. This, I have learnt works with JList by writing your own custom JList models and then DefaultListCellRenderer. Is there anyway, one could also do this with JComboBox?
//Main Method
import StudentList;
import Student;
import ViewGui;
import Controller;
public class SwingMainMethod {
[code]....
My question is related to combo boxes. A combo box in general is a text field with a dropdown list. I would want to know if we can replace hthe dropdown List by an other component, for example a JTable component.
View Replies View RelatedI have a program where i want to indicate the user when i have completed a task which i am running inside a for loop. Below is my code.
for(Map.Entry<Double,SimplestCopyInstance> entry : myList.entrySet()){
double key = entry.getKey();
SimplestCopyInstance scp = entry.getValue();
Copy cp = new Copy();
cp.putLocations(scp.getSrc(), scp.getDes());
scp.setStatus(cp.baseCopy()+"");
[Code] ....
I have used netbeans to build my app. So there creating jTable is out of my control as that part was inside auto-generated code. I have just used the jTable.setValue().
My problem is, above method is inside a button click event. Updated values not displaying until the loops ends.
I am trying to populate a JTable using Several JTextFeild a JComboBox and a JLabel.
The textfields are originalPrice and itemName
JComboBox is departmentComboBox
label is salePriceLable.
When hitting the button i need the program to calculate the price after discount and add the item name, department, original price, and discounted price to a table. I have the calculation down, but am lost on populating the table.I used NetBeans 8.2
/*
* Program: JavaRetailCalculator
* Purpose: To calculate the ammount of a discount and display results in a Table
*/
import java.awt.*;
import javax.swing.*;
public class CalculatorFrame extends javax.swing.JFrame {
/**
* Creates new form CalculatorFrame
*/
public CalculatorFrame() {
initComponents();
[Code] .....
I have a number of cells which are Dates and need to have them appear in the same format. The samples I have seen usually create a new cell renderer object for each cell, even if its the same type. Since I have a number of Date cells I thought it best to use a single object for each of the date cells, but after seeing the different samples I am wondering if there is something I may be missing where using the same cell renderer object could potentially be an issue.
View Replies View RelatedI'm making a project about school management system , i have a jframe to set marks and inside the jframe i have a jtable which is connected to sql database , in the jframe I have a JCombobox with 6 different subjects and in my database i have created 6 tables for the subjects and if any of the subjects are clicked then the jTable will connect to database and change the table to that subject , after it is changed if you double click on any row and insert a value then it will automatically update the table in the database , but my problem is that if I select the first option from the jcombox which is English and edit the values then it works fine , but if I select any other option e.g Math or Science , then I try to edit the table then it edits the English table , I commented the English option in the code to see what happens and I saw that it edits only the first option and if you try to change the subjects and edit than it edits the first subject in the combobox , so how can I solve this ?
CODE:
import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JLabel;
import java.awt.Font;
import javax.swing.JComboBox;
import javax.swing.JTable;
[code]....
I have a JScrollPane with two coulmns. In the first column I have an image pane JTable, and in the second a list with names of sections. This second column I try to divide in two columns, one (the second column) to display the names of the sections (each row contains one name), and in the other column (the third) I want to show some values for every section in the row respectively. But, instead of displaying the desired values in the third column, I get the same names of the sections as in the second column.
View Replies View RelatedI am trying to set some serial port parameters here:
public synchronized void connect(String port, String rate, String data, String stop, String parity) throws Exception {
CommPortIdentifier portIdentifier = CommPortIdentifier.getPortIdentifier(port);
if (portIdentifier.isCurrentlyOwned()) {
System.out.println("Error: Port is currently in use");
} else {
CommPort commPort = portIdentifier.open(this.getClass().getName(),
2000);
[Code].....
To set the serial port parameters i need to use Integers instead of strings.
So, how i turn my string EG:
String[] baudRates = { "2400", "4800", "9600", "14400", "19200", "38400", "56000", "115200" };
into Integers for my combo box
My database contains path of images that I want my jComboBox to diaplay. I have written the following code but it does not work for comboBox but works fine when I display image on jLabel etc. How should I go about this
try {
try {
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
} catch (ClassNotFoundException ex) {
Logger.getLogger(updatedetail.class.getName()).log(Level.SEVERE, null, ex);
[Code] ....
I lately started using "advanced" Swing-Components, like JTabbedPane and JComboBox, but I dont get the ComboBox working/This is the code I use:
public class PreferencesPanel extends JPanel
{
public PreferencesPanel (MapEditWindow window)
{
super ();
setLayout (new FlowLayout ());
String[] resolutions =
{
"1024x768", "1280x800"
[code]...
The TabbedPane is placed in another JPanel, which is placed in an Fullscreen-Window.
Now, the problem is, that when I start the application and open the "Preferences"-Tab, everything seems normal, I can see the ComboBox and the first entry is selected. But when I click it, instead of opening and offering me more choices, the program crashes and my screen turns black (I'm using OS X, on Windows it would possibly turn white, but I didnt test this out).
I have posted a class ReadExcelDemo and I have this working correctly and can println and get my desired outcome. Where I am having issues is with taking that data and filling a JComboBox drop down menu which is the last line of code where I am getting the error Array Dimension missing.
package Product.form;
import java.io.File;
import java.io.FileInputStream;
import java.util.TreeSet;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
[Code] ....
This is located in the GUI class.
selectProduct.setModel((new ReadExcelDemo.Castings[]).toString());
// This is another class where I am trying to fill a Jcombobox
implementing a swings application. I have a JFrame containing 2 JPanels : Top & Bottom panel. Top panel has a Jcombobox, Botton panel contain a Graph plot. On changing value in combo box, graph plot should get updated. I thought of adding actionlistener to Jcombobox. Not sure what to implement in its actionPerformed()
View Replies View RelatedI am developing an application using Java Swing on Netbeans using Java DB, In which i want to create a form using Jtextfields & JComboBox.
I already added data in the JcomboBox to select. I already create a database and table for this application. Now i want to insert the data in Jtextfield and selection of Jcombobox to insert into the table i designed for it. How to link the form with the table and insert the data of form in table...
I am trying to use a JComboBox with a simple ListCellRenderer
public class EntscheidendeBehoerdeListRenderer extends JLabel implements ListCellRenderer<EntscheidendeBehoerde> {
private static final Color HIGHLIGHT_COLOR = new Color(0, 0, 128);
private static final long serialVersionUID = -4719965772580952993L;
public Component getListCellRendererComponent(
JList<? extends EntscheidendeBehoerde> list,
EntscheidendeBehoerde value, int index, boolean isSelected,
boolean cellHasFocus) {
[code].....
The JCombox shows and odd behavior, when I point to an item it moves up or down and an empty line appears under the cursor.
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.
in the SSCCE, the ItemListener is not triggered when I add a FocusListener for it beforehand.How can I make them both function when either focus is lost or when an item is selected?
package testapp;
import java.awt.Dimension;
import java.awt.event.FocusEvent;
import java.awt.event.FocusListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.sql.SQLException;
import javax.swing.JButton;
[code]....
I have a JScrollPane with two coulmns. In the first column I have an image pane JTable, and in the second a list with names of sections. This second column I try to divide in two columns, one (the second column) to display the names of the sections (each row contains one name), and in the other column (the third) I want to show some values for every section in the row respectively. But, instead of displaying the desired values in the third column, I get the same names of the sections as in the second column. Here is a part of the code I have:
private Vector<Section>daten = new Vector<Section>(0); //These are the values for the first column in the Jscroll
private String[] header = {"Section","calcGYR"}; // These are the values for the second and third column (in this case the header for the both columns
public TrafficObserveModel(Vector<Section> daten) {
setData(daten);
[code]....
But I don't know how to modify the methods in order to render the desired integer values in the third column.
I am developing a java based software connected with a mysql database. I have an Item table in my database. I created a bean class which can keep all item data with it and. Then I loaded each Item data in to its object and fill a Jcombobox. Now I want to search with Item name and get all Item data when selecting that item. I have overidden the toString method to Item name in that class. Is there any way to search my Item objects inside a jcombobox?
View Replies View RelatedI have two classes - One is Read.java and the other is Display.java
Read.java looks like this
public static void main(String[]args){
File file = new File("test.txt");
try{
FileReader fr = new FileReader(file);
BufferedReader br = new BufferedReader(fr);
[Code] ....
Display.java looks like this:
public class Display extends JFrame {
private JComboBox comboBox;
private JPanel contentPane;
/**
* Launch the application.
*/
public static void main(String[] args) {
//method call to access other class
[Code] ....
Instead of having it so it displays the id's to the console,is there a way I can set it straight up to the combo box?
I need to take the value of what's typed in my JTextField, and once the submit button is clicked, I want to add that string to my JComboBox list items.
Depending which RadioButton they selected, I need to put the team in HOME or AWAY teams, and so on and so on, until they continue clicking submit.
How do i format a JTable of integer values to display commas after every third value like numbers should be displayed?
View Replies View RelatedI need to implement an editable JComboBox. It should display a list of rivers from a database. However since the number of rivers is very large, the entries must be dynamically filled after the user has typed in three or more letters.
I have tried to solve this using a KeyAdapter. Everythings works. However after the user has typed in three characters, these three characters are selected in the Combobox. Of course when the user continues to type these chars will be replaced. I have so far not found a solution to deselect the characters and place the cursor at the end.
this.fliessgewaesserComboBox = new JComboBox<UisFliessgewaesser>();
this.fliessgewaesserComboBox.setEditable(true);
this.add(this.fliessgewaesserComboBox, c);
FliessgewaesserSuchenKeyAdapter fliessgewaesserSuchenKeyAdapter = new FliessgewaesserSuchenKeyAdapter(this);
this.fliessgewaesserComboBox.getEditor().getEditorComponent().addKeyListener(fliessgewaesserSuchenKeyAdapter);
[Code] .....
i have a problem, im trying to get some values from a jtable (tabla) and insert them in a mysql database, so i scan the table for some values to know which of the rows i must insert ("s" or "n").
I'm able to insert few rows, but when the last row with "s" or "n" is inserted it launch me a NullPointerException and I dont know why.
public void insertar(JTable tabla, int rowt, int colt) throws ParseException{
String documento=null, cve_clie=null, fechaE=null, fechaR=null, check=null;
char d=' ',dd=' ',m=' ',mm=' ',y1=' ',y2=' ',y3=' ',y4=' ';
String chck = null;
try{
conexion = connMysql.mysql();
String squery="insert into consefact3 values (?,?,?,?,?)";
PreparedStatement pst = conexion.prepareStatement(squery);
[Code]...
I would like to create a JTable.
Each cell contains an array of 4 objects:
[0] ImageIcon
[1] ImageIcon
[2] Number
[3] Boolean
1) Once JTable is displayed, each cell display only [0] .
2) Later, based on user mouse click on cell, cell should display [1]
How can I use an array with 4 values in Table Cell?