FAQ Database Discussion Community


Dynamic row creation in JTable?

java,swing,jtable
Initially I want jtable with one row, when I enter the last row, new row will create with the same format of previous row. Is it possible in jtable or any other options are available in java?

Java Changing the color of a certain row in JTable [duplicate]

java,swing,colors,jtable,row
This question already has an answer here: Change the background color of a row in a JTable 5 answers ANSWER: Im not allowed to post answers... thumbs up stackoverflow!!! But here it is: Holy freakin'.... I made it, actualy it was easier than i have thought.... Here's my solution:...

How to sort JTable in shortest way?

java,swing,sorting,jtable,tablerowsorter
I was searching for Sorting in JTable and I referred many articles, but couldn't get the easiest way to sort the table. I also know that TableRowSorter could be somehow helpful but don't know how. Being new to JTable, I am creating a new question here. My table structure is...

Unable to read data from JTable editable cell

java,swing,jtable
I am directly inserting data into JTable, suppose there are 5 rows in JTable and I inserted values in all and in last I am inserting value in a cell of fifth row, and cell is in editable mode, in this situation I cant read data from that cell.

JTable Printing. How to set page breaks programmatically?

java,swing,printing,jtable
I am trying to find a way to programmatically set page breaks for printing out a JTable. E.g., I have a table with approx 150 rows like this: Line Number Data1 Data2 Data3 …etc 1                    a         b        c        d 1...

Java: Copying data from dialog box text field to JTable

java,swing,jtable,dialogbox
This project requires that a user inputs data into text fields on a dialog box accessed from a menu bar and places the data from the text fields into a JTable. The problem is that once the user clicks okay on the dialog box after putting the information into the...

Image not showing in Jtable with renderer

java,swing,jtable,imageicon,tablecellrenderer
I have created a CellRenderer for my table. It works fine if the image is with small size. However , if it's a little large it shows me blank space public class ImageRenderer extends DefaultTableCellRenderer { JLabel lbl = new JLabel(); JButton bouton ; List<Commentaire> liste; ImageIcon icon ; Commentaire...

Recursively add ArrayList data into JTable

java,swing,arraylist,jtable
I know this is beginner's question but it doesn't work. Here's the code public void imageshow( String path ) throws IOException { File root = new File( path ); File[] list = root.listFiles(); if (list == null) return; for ( File f : list ) { imageshow(f.getAbsolutePath()); if(f.getName().endsWith("jpg")||f.getName().endsWith("png")||f.getName().endsWith("gif")||f.getName().endsWith("tif")) { images=new...

JTable new column Add not successful

java,swing,csv,jtable
Below is a part of code I am trying to resolve. What I am trying t achieve here is "To add one more blank column at the end and then filling up cell values row by row for that column". Eventhough I can debug, in line table.setValueAt(finalCell, row, table.getColumnCount()-1); Its...

Repaint Table issue with Swing JTable

java,swing,jtable
I am working with swing JTable and have a trouble with repainting table. I draw a JTable with thr following code Object[] column = new Object[]{"Entity", "Attribute"}; Object[][] rowData = new Object[][]{{"E1", "A1"},{"E2", "A2"}}; TableCellRenderer cellRenderer = new TableCellRenderer(); JTable table = new JTable(new DefaultTableModel(rowData, column)); table.setCellSelectionEnabled(true); table.getColumnModel().getColumn(0).setCellRenderer(cellRenderer); Below is...

hide/show rows in jtable

java,swing,jtable,rowfilter
I have table created with defaulttablemodel with combobox above it. I need to hide/show rows, that are already created and populated , based on combobox values(10,20,30,40 ). private void newFilter(int numberOfRows) { RowFilter<TableModel, Integer> filter = new RowFilter<TableModel, Integer>() { @Override public boolean include(RowFilter.Entry<? extends TableModel, ? extends Integer> entry)...

How to colorize rows of a JTable after searching?

java,swing,jtable
I'm working with Java Netbeans and I've a JTable which contains many values and I'm doing a search. This is my code - it works well. private void txtRechEHSKeyReleased(java.awt.event.KeyEvent evt) { String re=comboSearchByEHS.getSelectedItem().toString(); String sql = "select * from equipement where "+re+" like ? "; try{ ps = con.prepareStatement(sql); ps.setString(1,...

How to make Jtable cell character length

java,jtable
I want to make my j table column to limit character like allowed only 16 character.I tried various methods nothing works.can anybody helps me?.

JTable Not Working

java,mysql,swing,jtable
For some reason, the data I created with java won't be turned into a table when using JTable. Can someone explain to me why? Is it because my column or row counters are off? My code and error log are below import java.awt.BorderLayout; import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import...

Make JTable Column Header Not Movable/Resizable

java,swing,jtable
Whatever I try I cannot get a JTable's header to be static. Right now you can click in the headers and drag them out or just relocate the entire columns of the table by moving the header. Is there a way to prevent this and make the headers not editable?...

How can I make an entire row have a border when a cell in the row receives focus?

java,swing,jtable,focus
I have a JTable with 4 columns. Each column has it's own customized cell renderer. When a cell receives the focus, it gets a border around it. How can I make the entire row have a border and not just one cell?

Formatting Integers in JTable Column Cells With Commas

java,swing,jtable,format,number-formatting
I have a Price column that displays integers in plain format like 1000000. I would like to know how can I format it with commas without affecting its value when retrieving with table.getValueAt()? Is there a method like table.setColumnCellFormat(decimalFormat)?...

How to add checkboxes to a JTable which uses a model with values from a database?

java,swing,checkbox,jtable,checkboxlist
I have a model(AbstracTableModel) which I use to build a JTable. The thing is that the table cell values seen in the GUI are displayed from a database. How can I add a new column with checboxes for each row of the table? Is there a concrete answer to this?...

Re-Using JTableHeader

java,swing,jtable,jtableheader,tableheader
The code below displays 2 JTables. As they both will have exactly the same headers I wanted, for the sake of efficiency, to reuse the header from the first table. However running the code results in the header appearing in the second table but not in the table it came...

Swing: JList holding multiple Components as a single item

java,swing,jtable,jlist,imageicon
Here is my problem: I'm creating a window that is responsible for listing a layer, where it displays the layer's current image (in the form of a ImageIcon as of now), layer's name, and a check box to alter the current on/off state of said layer. The entire thing is...

Proper way setting the column width and row height of JTable

java,swing,jtable
I have a custom table with dynamic width and height for each column and row. I also planning to use JTextField as TableCellRenderer. Should I set the table row height and column width inside the render or inside the custom table?Or there is another place that I can place this?...

adding background image in jTable Java

java,swing,background,jtable,netbeans-8
I am trying to add background image in jTable but when I run code nothing shown. only white color and no jTable shown and my java Application hangs also. is there any thing wrong in this code. here is the preview also. import javax.swing.table.*; import java.awt.event.*; import javax.swing.*; import java.awt.*;...

I want to populate a jtable using a method (with a query exec) that is defined at another class

java,mysql,sql,swing,jtable
I have a jtable "clientTable" in the clientRecorderUI JFrame(extends JFrame)..I also have a class called databaseHandler (public class that extends clientRecorderUI) that i want to use as a controller/model (MVC-esque kinda design). The method in the databaseHandler is called populateTable(an sql that fills the table with the database values). I...

Adding JScrollPane to JTable doesn't show up

java,swing,jtable,jscrollpane
I'm pretty new to Javas swings, so sorry if this is something trivial. This is the constructor, I excluded unnecessary form items. (I tried running the code as short as this, but the problem still appears) //This just opens a connection to MySQL server, this doesn't create any problems. bp...

Add the values in a Jtable together

java,jtable
How do I get the sum of a particular column in a Jtable as the user inserts values into the Table?

searching an element in jTable java

jtable,rowfilter
so here is example how one dude did it import java.awt.BorderLayout; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.JTextField; import javax.swing.RowFilter; import javax.swing.SwingUtilities; import javax.swing.event.DocumentEvent; import javax.swing.event.DocumentListener; import javax.swing.table.DefaultTableModel; import javax.swing.table.TableModel; import javax.swing.table.TableRowSorter;...

JTable refreshing from another class

java,swing,user-interface,jtable
I have this method: public void refreshTable() { Object[][] datax = DB.getData(emailAddress); DefaultTableModel model = new DefaultTableModel(datax, columnNames); table.setModel(model); } and I call it in another class: private void jButton3MouseClicked(java.awt.event.MouseEvent evt) { EmailManager em = new EmailManager(emailAddress); em.refreshTable(); dispose(); } The table is not refreshing. Both classes contain different GUI's....

How to fill a jframe table from an arraylist?

java,swing,arraylist,jtable,jframe
I have a jtable that I created using java GUI and I need to fill from an arraylist. I'm not familiar with java and I have no idea how to fill a jTable. I don't know if I need to use TableModel or just JTable table = new JTable(data, columnNames)....

Print a JTable and JLabel using swing components?

java,swing,printing,jtable
I want to print JTable and JLabel's using java swing. I have tried the below code, it's printing only JLabel values. JTable is not printing. Kindly help. Code: public class TablePrintDemo1 extends JPanel implements Printable, ActionListener { private static final long serialVersionUID = 1L; static JFrame frameToPrint; JLabel l1, l2,...

JTable setting a default editor for a custom class

java,swing,jtable,tablecelleditor
I am having an issue with trying to set a default JTable cell editor for a custom class. I have several custom columns (numbers, strings and booleans). For the number types I use a my own cell editors and for the boolean and string types I just wanted to use...

Retreiving image in a jtable

java,swing,jdbc,jtable
I use the following code to retrieve data and images from 2 different tables: try { Class.forName(classforname); Connection con = DriverManager.getConnection(Connectionurl, username, password); String sql = "Select * from teacherdata where teachername='" + tf1.getText() + "'"; PreparedStatement ps = con.prepareStatement(sql); ResultSet rs = ps.executeQuery(sql); rs.next(); String thename = rs.getString("teachername"); String...

Replace checkbox with String for Booleans in DefaultTableCellRenderer

java,swing,jtable,boolean,tablecellrenderer
I've been trying to learn JTable renderers, and have nearly nailed down the behavior I'm looking for, save for this last part. I want to remove the checkbox that JTable renders by default for booleans and render a simple String instead, and I just can't wrap my head around my...

removing row from JTable [duplicate]

java,swing,jtable
This question already has an answer here: How to remove a row from JTable? [closed] 6 answers I have made a table with my own model so cells are not editable String[] colNames = {"Barcode","Name","Exp Date"}; String[][] rowInfo = new String[mainSuper.getProductVector().size()][3]; Iterator<Product> itr=mainSuper.getProductVector().iterator(); int i=0; Product temp; while(itr.hasNext()){ temp=...

JTable column uneditable after adding JComboBox to a cell

java,swing,jtable
I have a JTable component with 2 columns, for the second column iwant to add a JComboBox for only one cell, following oracle documentation i've created my own cell editor, and added the JComboBox but after that all of the other cells from the column became uneditable. Here is an...

Removing columns on Jtable and than inserting new columns

java,swing,netbeans,jtable
I am using Netbeans for developing a java application. I am trying to remove columns on a jTable, and than adding new columns to it with the data that I am extracting. The problem is, I am able to remove the columns easily, using the code snippet below. But when...

“AWT-EventQueue-0” java.lang.NullPointerException when saving JTable (DefaultTableModel)

java,swing,exception,nullpointerexception,jtable
I ran into trouble saving a JTable (containing the model). Simply serializing the model is no problem as far as I only add rows and Data. The moment where I remove one row and try to save generates an IO exception. My code: This code is used to save the...

Save a Jtable to a file I created with a boolean column

java,swing,jtable,boolean,bufferedwriter
I'm trying to save a jtable on exit but I can't because I have a boolean as one of my columns. Can anyone explain to me how to get rid of java.lang.ClassCastException: java.lang.Boolean cannot be cast to java.lang.String? this is my code to save on Exit. private void btnBckMouseClicked(java.awt.event.MouseEvent evt)...

JTable set column width with a dynamic size and JTextArea as cell renderer [duplicate]

java,swing,jtable
This question already has an answer here: Auto resize the widths of JTable's columns dynamically 3 answers I want to set my JTable column with a dynamic size depending on the text. I want to know for each X number I set to getColumnModel().getColumn(0).setWidth(X); how many characters can fit...

I want to update table when Button is clicked

java,swing,jtable,actionlistener,defaulttablemodel
I am newbie of Swing. I want to update table after click button (done button). I think data correct but the screen does not work. The followings are explanation of my program check checkBoxes and the click Done button the bottom layer should change. there is no main This is...

Make a specific cell editable based on checkbox JTable

java,swing,user-interface,jtable
I have a JTable with 7 columns in which the 6th is a boolean (checkbox). I would like to make the 7th column's cell become editable only when the boolean in the 6th column is checked. For example, if (2,6) is checked, I would like ONLY (2,7) to become editable....

Implementing a refreshing table with threads

java,multithreading,swing,jtable
I'm doing a Swing application where in one of its forms, I have a table which I want to update periodically. I first thought of using a Timer, but the task may be time consuming and it may freeze the GUI. Then, I thought of using a SwingWorker, but it...

Java scrollpane not adding to panel instead displaying white screen

java,swing,jtable,jscrollpane
So I have a table that is displaying data from a database but since there's a lot of data being outputted into the table it goes way beyond the bounds I have set for the JFrame. I've tried adding a ScrollPane below but instead of allowing me to scroll down...

JTable Edit Cell only on double click and F2 and Not on any key press

java,jtable
I Have a JTable with some editable columns. If a cell is selected and i start to typing, the cell enter in edition mode. I don´t want that. I want to just edit the cell if I press F2 or double click it. I found some posts about key binding,...

Display processed values in Jtable column and sort using raw values?

java,swing,jtable
I have a table in database, the first column of this table contains some numeric values, this is the raw data. There is a specific algorithm to convert these raw numeric values to processed text values.How can i achieve: display the processed text data in Jtable. where should I process...

Can a TableCellEditor tell which JTable it is editing?

java,swing,jtable,tablecelleditor
I have a TableCellEditor that overrides stopCellEditing to validate the content. I would like to interact with the table as part of this validation. Is there a way to determine what table we are editing? I thought it would be getParent(), but it seems sometimes getParent() is the table and...

jTable populating and refreshing ArrayIndexOutOfBoundsException

java,jtable,indexoutofboundsexception,swingworker
I have below SwingWorker for populate the jTable1. And i have button for executing this task. public class WorkerTime extends SwingWorker<Void, Void> { protected Void doInBackground() throws Exception { DefaultTableModel model1 = (DefaultTableModel) jTable1.getModel(); model1.setRowCount(0); for (int i = 0; i < 5; i++){ model1.addRow(new String[]{"a","a","a","a","a","a","a","a","a","a","a"}); model1.fireTableDataChanged(); } return null;...

Displaying images from MySQL database on a single column of JTable

java,mysql,swing,user-interface,jtable
I'm trying to display images retrieve from MySQL database of blob datatype. Could not figure out what is the problem that causes the image column to display data like this [[email protected] instead of image icon. DefaultTableModel model = new DefaultTableModel(new Object[]{ "image", "item_name", "quantity","price", "category", "color", "size"}, 0){ @Override public...

How do you get the font and graphic of a column header in a JTable

java,swing,jtable,fontmetrics
I am trying to get the graphic and font of a column header in a JTable. To do this I am using the code Graphics g = myTable.getColumnModel().getColumn(i).getGraphics(); Font f = myTable.getColumnModel().getColumn(i).getFont(); However that produces a can't find symbol error The full code for this program is import javax.swing.*; import...

Accent in JTable displayed in Eclipse but not in a .jar

java,utf-8,jtable,accented-strings
I am displaying a csv file (with a UTF-8 encoding and french accents) in a JTable. To read the file I use the following lines (s_path is a String which corresponds to the path of the csv file): reader = new CSVReader(new FileReader(s_path),','); do{ String currentLine = reader.readNext(); ... }...

Coloring Text in JTable Cell

java,regex,swing,jtable,tablecellrenderer
I want to color text in a JTable cell. I'm using a DefaultTableCellRender with HTML Tags to color multible words/text. I'm using Regex to find words/text and replacing them by adding HTML Tags. The problem here is that the HTML tags them selves should not match by the regex. example:...

AbstractTabelModel won't show the JTable collumn names

java,swing,jtable,abstracttablemodel
For some reason my JTable is not displaying it's column names?! I'm certain I've done everything correctly. I've literally copied this from a demonstration so i don't understand why it won't work. Here is my code: public class MemTableModel extends AbstractTableModel{ private ArrayList<member> members = new ArrayList<member>(); private String[] columnNames...

Get position of Click JTable while using Cell renderer

java,swing,jtable,mouselistener
I'm currently using a JTable in Java to display a large amount of text information, and as such have implemented text wrapping, using the following code: MyCellRenderer mcr = new MyCellRenderer(); table.getColumnModel().getColumn(0).setCellRenderer(mcr); class MyCellRenderer extends JTextArea implements TableCellRenderer { public MyCellRenderer() { setLineWrap(true); setWrapStyleWord(true); } public Component getTableCellRendererComponent(JTable table, Object...

Java Fitting JPanel into Modal JDialog

java,swing,csv,jtable,jdialog
I have a class that returns a JPanel: public static JPanel program(String csvName) { JPanel f = new JPanel(); try { String path = System.getProperty("user.dir"); String datafile = path+"/files/logic/"+csvName+".csv"; FileReader fin = new FileReader(datafile); DefaultTableModel m = createTableModel(fin, null); JTable table = new JTable(m); JScrollPane stable = new JScrollPane (table);...

JTable missing first row

java,swing,jdbc,jtable,defaulttablemodel
i already searched the whole web but I can't find a solution, so i decided to ask here. Following problem: I am using those 2 methods to populate a JTable with a DefaultTableModel, the ResultSet shows the right amount of data entries (i already searched it with System.out.println) but the...

JTable header is not showing in a JScrollPane

java,jtable
I want to add a JTable into a JScrollPane, but the tableheader is not showing. Could anybody can help me figure out this? JScrollPane tablePane = new JScrollPane(); tablePane.setViewportView(table); tablePane.setRowHeaderView(table); tablePane.setPreferredSize(new Dimension(950, 450)); this.setPreferredSize(new Dimension(1100, 500)); this.setLayout(new BorderLayout()); this.add(BorderLayout.CENTER, tablePane); ...

How to show all records in database to JTable?

java,mysql,swing,jtable
Excuse me. I want to show all records in JTable. But I get confused because my coding just show 1 record. When I click it again, that just show same records. Can you help me how to get all records? try { Statement stmt; stmt = con.createStatement(); ResultSet rs =...

populate a 'JTable' with values from a '.txt' file

java,swing,file-io,jtable,stringtokenizer
I'm new to java and I have a text file like this 0786160384|P. K.|Tharindu|912921549v|Colombo| 0711495765|P. K.|Gamini|657414589v|Colombo| 0114756199|H. P.|Weerasigha|657895478v|Kandy| I want to populate my 'jTable' with with the data from this text file. below is my code so far which doesn't work. When I execute the program nothing is displayed on...

Problems with default table model

java,jtable,tablemodel
I am creating java editable table, and faced to problem: it "crashes" after reading data. Here is my table: table.getTableHeader().setReorderingAllowed(false); tableModel = new DefaultTableModel(new Object[] {"#","1","2","3","4","5","6","7"},8); table.setModel(tableModel); table.getColumnModel().getColumn(0).setMaxWidth(22); Reading from txt: OK4.addActionListener(new ActionListener(){ @Override File f = new File(fileName); if(f.exists()){ try { tableModel = new DefaultTableModel(new Object[]{"#","1","2","3","4","5","6","7"},0);...

Getting all the ID's from a specific column automatically (i.e. not having to select a row) in a JTable

java,database,jtable
I would like,as the title suggests, to be able to get all the values in an ID column from a JTable without the user actually selecting a row (and thus ID).Lets say there are two results in the JTable, that means there are two items in the ID column. Is...

Swing remove JTexField and JLabel

java,swing,jtable,jtextfield,jcheckbox
I have a JTable 2 columns, column name and check-box. If the user clicks the check box next to the name of the column that creates a new field for data entry. I wish the unclick check box input field has disappeared. How can I do that? My code to...

Removal of rows in table not working properly

java,swing,jtable
I'm trying to remove the rows of data that are inside of my table when a button is clicked. My current code removes the row content after 1-3 presses, but I was hoping it would clear the content and then add the new content all in one press. Here is...

JTable does not show the result on the first execution

java,jtable
The code is to add the data to the JTable. String [] header = new String [] {"No","Customer","Video","Date","Days","Status-Closed"}; Contract [] contractArray = contractList.toArray(new Contract [contractList.size()]); Object [][] datarow = new Object [contractArray.length][6]; try{ //Read the objects from file and store in the List ObjectInputStream inputStream = new ObjectInputStream( new FileInputStream("contractfile"));...

JTable not updating values as new rows are added

java,swing,jtable
This is the screen of my system where it lists the available Magazines("revistas") and Books("livros") from ArrayLists of String[] containing Name,Availability,Code. Everything is working fine, except the table is showing blank. This is my class, I've cropped the variable declarations. Function "listar" at the bottom is what loads the JTable...

Edit Jtable on double click

java,swing,jtable,defaulttablemodel
I need to edit table when user double clicks on row, with new values. I tried with setValuesAt method but it didn't do anything. This is what I got so far but I don't know how to set new values to Jtable. public class Table extends JFrame { private JTable...

Adding text to multiple JTextAreas in different tabs of a JTabbedPane dynamically?

java,dynamic,jtable,jtextarea,jtabbedpane
So I am dynamically adding JTextAreas to a JTabbedPane on the click of a JTable cell. I was wondering how to also set the text of the JTextArea dynamically. I was looking at trying to use getSelectedIndex() nested in getComponentAt(), but this returns a Component rather than a JTextArea so...

Adding a JComboBox to a JTable cell. Selected item doesn't stay

java,swing,jtable,jcombobox,selecteditem
I looked through a few posts here but couldn't find an answer to this. I have successfully added a JComboBox to a Jtable cell. However the selected item is not being "remembered". More specifically: 1) Select an item from a combo box of row A 2) Go to select a...

JTable with different color value

java,swing,colors,jtable
I want to display data in a JTable like in the picture bellow: It can be observed that in the second row appear only 3 values, which I want to be colored. Also I have a problem in dispaying those rows, with the indentation. My disply so far looks like...

JTable: adding one dimensional array as rows

java,arrays,swing,jtable
String[] names = app1.getSimplifiedMovieRecordsList(); I have this string array with names of movies. I need to display this as the rows of a table having one column. Can someone please tell me how to do this. ...

How to set tabel in scrollpane and how to show tabel header

java,swing,jtable
import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.table.*; public class StatusPage extends JPanel { DefaultTableModel dm; JTable table; JScrollPane jsb; public StatusPage() { String col_name[] = {"S.No.","Book Name","Author Name","Available Book","Issue Book","Total Book"}; String data[][] =...

highlight a specific row “person”, a `TextArea` next to the table will show some text about that person “row”.., and it's different from each row..!

java,swing,jtable,selecteditem,defaulttablemodel
I made Jtable using TableModel witch view data Persons(name, age..ect) from Arraylist, What I need is when I highlight a specific row "person", a TextArea next to the table will show some text about that person "row".., and it's different from each row..! I made jTable1MousePressed and i tried some...

how to populate jtable checkbox values from database

java,jtable
I want to add a checkbox to the JTable, when the database value is true or false (currently i am using Oracle database, so its not accepting boolean type). When the value is true, the checkbox will be shown selected/checked. It's very urgent please help me. Everything is fine, but...

Adding items to combo box in a table in netbeans

java,swing,netbeans,jtable,jcombobox
I have a table and one of its columns needs to contain combo boxes. When I run the following code, I get combo boxes in each cell but the items are not added into it. When I try to print the items using system.out.println(val), they get printed but they do...

How can I add tooltip on content of table

jquery,jsp,jquery-ui,jtable,tooltip
I am very new to java script. I wanted to add tooltip to given below content. There is one way of doing it that is we can do by Adding title to every td tag. Now How can I add title to every td with same value. I am not...

GUI Calendar DefaultTableModel Addig MouseListeners

java,swing,jtable,mouselistener,jcalendar
So I followed a tutorial about how to create a GUI Calendar, but now I want to take it a step further. I would like to be able to click on the individual days in the calendar in order to prompt the user to add an event. But I don't...

Displaying Blob Value from JTable cell to JLabel

java,image,swing,jtable,listselectionlistener
I have a ListSelectionListener that gets Blob value from a certain row cell and loads it to a JLabel. The issue here is that everytime i clicked on a row, it loads the image to the JLabel before highlighting the row. And there is a delay when loading the image....

Importing text into a JTable is not displaying

java,swing,jtable,jtextfield
I have created a program where I can input data in JTextField and on hitting save button I use a JFileChooser to save the data in a .txt file where each JTextField is in a new line. I also created a button that pops up a JFileChooser to browse for...

How To Hide a div based on value in inner div

javascript,jquery,html,jtable
<form id="jtable-edit-form" class="jtable-dialog-form jtable-edit-form"> <div class="jtable-input-field-container"> <div class="jtable-input-label">Type</div> <div class="jtable-input jtable-text-input"> <input class="" id="Edit-configType" type="text" name="configType"> </div> </div> <div class="jtable-input-field-container"> <div class="jtable-input-label">Key</div> <div class="jtable-input jtable-text-input"> <input class="" id="Edit-configKey"...

Get selected cell value in JTable [duplicate]

java,swing,jtable
This question already has an answer here: How to get cell value of jtable depending on which row is clicked 2 answers When I double click the cell of the JTable, I want it to take the value of that cell and write it in the textfield. What should...

JAVA read text files, count numbers and write it to Jtable [closed]

java,swing,file-io,jtable
I am still learning JAVA and have been trying to find a solution for my program for a few days, but I haven't gotten it fixed yet. I have many text files (my program saves). The files look like this: text (tab) number (tab) number (tab)... text (tab) number (tab)...

Unable to use DefaultTableModel in JTable

java,swing,jtable,classcastexception,defaulttablemodel
Object rowData[][] = { {1, "", null, "", "", false, ""}, {2, "", null, "", "", false, ""}, {3, "", null, "", "", false, ""}, {4, "", null, "", "", false, ""}, {5, "", null, "", "", false, ""}, {6, "", null, "", "", false, ""} }; DefaultTableModel model =...

Odd TableModel Null Pointer

java,swing,jtable,tablemodel
I am getting an odd null pointer. This is my TableModel: private class Model extends AbstractTableModel implements IEventRespondedToListener{ private List<ModelPojo> elements; private String[] columnNames = new String[]{ "Class", "Event", "Event Id", "Time" }; public void Model(){ elements = new ArrayList<>(); } @Override public int getRowCount() { return elements.size(); } ......

Why is an animated .gif icon not showing in JTable column?

swing,user-interface,jtable,icons,gif
Here is the processing.gif Here is initial.png Here is the output Here is the code. processing.gif is working in other locations such as in the tab of a JTabbedPane. Here in the column of a JTable, it is not showing. Any explanation and solution? processing.gif is a moving icon...

Showing a JTable in a JTree behaves differently with different look and feels

java,swing,jtable,jtree
I have a JTree where some of the data to be shown should be shown in a JTable. So to do this, I created a renderer class (extending DefaultTreeCellRenderder) to change the rendered component returned depending on what the object value contains when initially passed into the renderer. If it...

Equivalent of getSelected column method of JTable in DefaultTableModel

java,user-interface,jtable,tablemodel,defaulttablemodel
I was re designing my codes with formerly using JTable jtable = new JTable(); int selectedIndex = jtable.getSelectedColumn(); //implementations Now, I need to use DefaultTableModel. Is there a method or implementation that is related to this method of JTable? Thanks!...

Syncing a JTable with ArrayList of Objects values in Java

java,swing,arraylist,jtable
My program has a JTable which displays information about a student. e.g. Columns contain: "Name", "Surname", "Age", "Year" I also have an Object class for students as follow: public class Student { private final String name; private final String surname; private final int age; private int year; public Student(String name,...

Taking data from Mysql to JTable in JAVA

java,swing,jdbc,jtable,defaulttablemodel
I am trying to have information in my Jtable and reading the info from mysql and it looks like am the era comes from this segment as I can see am stuck , I dont know what to do, Now I have a DefaultTableModel which defines the methods JTable will...

Convert List containing objecs to multidimensional Array

java,swing,list,multidimensional-array,jtable
I have a ArrayList of objects. Suppose, the object is a class something like this... public class User { String userId; String name; String account_created; String date_Of_Birth; //setters and getters } Iam inserting the data into the list from an external source (like database) List<User> usersList = new UserManager().totalUsersList(); I...

Java TableModel duplicating rows - How do I stop this from happening?

java,sql,swing,jtable,defaulttablemodel
So in application I've created a search for name page where the user will enter there the name and as the user types ( Every time a key is pressed) an SQL statement is ran that will get the records like 'name%'. This works fine but when it comes to...

Custom TableModel and render for JTable wont display anything

java,swing,jtable,tablemodel,abstracttablemodel
I have a list of activities where i want the content to be shown. "name, isdone, sdate, endate, description" i have been reading, but nothing of why my table wont even draw https://docs.oracle.com/javase/8/docs/api/javax/swing/table/TableCellRenderer.html http://docs.oracle.com/javase/tutorial/uiswing/components/table.html#data the variable "test" is only for trying to draw a table with the default model, and...

JTable updating in run time

java,swing,jtable
Is there a way to update a JTable during run time and without using the constructor? I have a JTable that I have already added to my JPanel but I want to be able to define the columns and data at a later point in the code instead of immediately...

Listen jtable change

java,swing,jtable,tablemodel
I have a problem with table model listener. It doesn't work, and I don't know why. I have tried different methods, and read a lot of questions here, but haven't found the solution. I've read this: Listening to JTable changes and this Row refreshing when cell is edited but it...

Custom navigation over rows of a JTable

java,swing,jtable
How to go to last row in JTable when we press Up key at first row and also how to go to first row when we press Down key at last row? Like Enter key does when we press Enter key at last row it will go to the first...

Calculate the sum of a last column values and put it on TextField?

java,swing,jtable
I have a Jtable with columns of Quantity, price and amount. If the user enters quantity and price, the amount value will show at the time of key releasing. It's working perfectly. I am also having one textfield below the table, that shows the sum of table's last column values....

Display tree map in gui java [closed]

java,swing,jtable,treemap
Firstly I am completely new to Java so please can you explain things as simple as possible! So I have a treemap, the keys are dates which point to strings. I want to display this on screen but am not sure how to do so. I did come across JTable....

Reference to row in JTable

java,hashmap,jtable
JTable stores rows which can be added, deleted, shuffled, dynamically. In my implementation row represent a Download, whose progress can be dynamically updated, by passing value of one of the unique attribute called id. But how do I map id with actual row? Iterating over the column is not efficient...

Java JComboBox icon

java,swing,jtable,boolean,jcheckbox
Displaying data in a JTable. One column serves as a field Checkbox. The problem is that instead of the icon appears in the display ChceckBox true / false. How do I fix this? Add data: private DefaultTableModel headermodel = new DefaultTableModel(); private JScrollPane scrollHeader = new JScrollPane(); private JTable headerTable...

How do we store text in a list like format in MySQL table cell?

java,mysql,types,jtable
I have table that stores what a customer would have bought. The table is of the following format: Columns: id fullName cell items. The column items is of data type LONGTEXT. I want to store items as strings there. Under normal circumstances, the string will be represented as Text line...

How do I color individual cells of a JTable based on the value in the cell?

java,swing,colors,jtable,tablecellrenderer
I am attempting to make a Tetris clone. The game uses a JTable as a representation of the board. The board is a 2D integer array. I am trying to make it so, when a certain cell has a certain value, the cell will change to a certain color. I...

Adjust one cell in JTable instead of whole row

java,swing,jtable,tablecellrenderer
I have run into a slight issue and am struggling to resolve it. Basically what is happening is that I have a JTable which is being populated by an array that I get from an API call. What I currently have is that if a device shows as online it...

Adding a scroll pane to GridBagLayout

java,swing,jtable,jscrollpane,gridbaglayout
I am trying to add two scroll pane along with one label and one button in a JPanel using GridBagLayout. While the first scroll pane containing a JList and the second scroll pane containing a JTable. Below is the code: JPanel capabilityPanel = new JPanel(new GridBagLayout()); GridBagConstraints constraints = new...