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JTable Reverts JComboBox and JCheckBox to Values after Selection

I have a JTable with a column of JComboBox<Integer>s and a column of JCheckBoxs. The JTable is set with the appropriate renderers and editors. The table looks fine at first, but after selecting a value from the combobox or checkbox, the cells seem to revert to the values of Integer and Boolean. The issue appears to be more than cosmetic, as methods that anticipate the cell having a combobox or a checkbox throw errors at finding an Integer or a Boolean.
Here is a picture of what it looks like:
And here is the code:
dataTable.removeAll();
numberOfVariables = 7;
Object[] header = new Object[numberOfVariables];
header[0] = new String("Ring Number");
header[1] = new String("Radius (cm)");
header[2] = new String("Plume Distribution");
header[3] = new String("Thickness (A)");
header[4] = new String("Deposition Time (s)");
header[5] = new String("Rate (A/s)");
header[6] = new String("Optimize (y/n)");
Object[][] data = new Object[numberOfRings][numberOfVariables];
for(int k=0;k<numberOfRings;++k){
Object[] row = new Object[numberOfVariables];
row[0] = Integer.toString(k+1);
row[1] = String.format("%.2f", plume.getRingRadius(k));
row[2] = createDistributionComboBoxForRing(k);
row[3] = String.format("%.2f", plume.getThicknessOfRing(k));
row[4] = String.format("%.2f", plume.getTimeForRing(k));
row[5] = String.format("%.2f", plume.getRateForRing(k));
row[6] = new JCheckBox();
((JCheckBox) row[6]).setSelected(true);
data[k] = row;
}
tableModel = new DefaultTableModel(data,header);
dataTable.setModel(tableModel);
dataTable.getColumnModel().getColumn(2).setCellRenderer(new ControlTableRenderer());
//dataTable.getColumnModel().getColumn(2).setCellEditor(new DefaultCellEditor( createDistributionComboBoxForRing(0) ));
dataTable.getColumnModel().getColumn(2).setCellEditor(new DefaultCellEditor( (JComboBox<Integer>) data[0][2] ));
dataTable.getColumnModel().getColumn(6).setCellRenderer(new ControlTableRenderer());
dataTable.getColumnModel().getColumn(6).setCellEditor(new DefaultCellEditor( (JCheckBox) data[0][6] ));
dataTable.updateUI();

row[2] = createDistributionComboBoxForRing(k);
row[3] = String.format("%.2f", plume.getThicknessOfRing(k));
row[4] = String.format("%.2f", plume.getTimeForRing(k));
row[5] = String.format("%.2f", plume.getRateForRing(k));
row[6] = new JCheckBox();
((JCheckBox) row[6]).setSelected(true);
The TableModel for a JTable stores data, not components.
So if column 3 contains an Integer object then you store an Integer in the TableModel and you set the editor for the column to be a combo box containing the list of valid Integers.
Same for the column containing the check box renderer/editor. In this case you store a Boolean object.
For example:
row[2] = new Integer(1);
row[6] = Boolean.TRUE
Now in the TableModel you need to tell the table what type of data is in each column so you need to override the getColumnClass(...) method. Something like:
tableModel = new DefaultTableModel(data,header)
{
#Override
public Class getColumnClass(int column)
{
switch (column)
{
case 2: return Integer.class;
case 6: return Boolean.class;
default: return Object.class;
}
}
};
Now the table can choose the appropriate renderer and editor for each column.
However, in the case of the combo box you do have to create a custom editor with the values for the combo box. See the section from the Swing tutorial on Using a Combo Box as an Editor for a working example on how to do this.
Also, you are incorrectly using some other methods:
dataTable.removeAll();
Not sure what that is for. That is a Container method to remove components from the panel. All you need is the setModel(...) statement to reset the table.
dataTable.updateUI();
There is no need to use the updateUI() method. That method is used internally when the LAF is changed. You are not changing the LAF so get rid of that statement.

The idea of cell renderers and editors is that you only have one component and that gets moved around and data changed for each row. The code uses a different JComponent instance for each cell. Just put the data in the table model and let the cell renderer and editors manage the components.

How do I dynamically display contents in tables in Java

I need to display some content in a tabular form dynamically in Java. The content includes data that is fetched from an API in JSON format. At the end of each row I need to display a checkbox as well. The number of rows is dynamic and the columns are fixed. How do I do this?
The table will have the following columns:
Index
Username
Upload date
Percentage
Matched results
[Checkbox]

Finally found the answer to this problem. We can dynamically create a table using the class DefaultTableModel and the Java swing class JTable.
model = new DefaultTableModel();
Set the columns
model.setColumnIdentifiers(new Object[]{"Index","User","Reg no.","Match"});
jTable1.setModel(model);
jTable1.setAutoResizeMode(JTable.AUTO_RESIZE_ALL_COLUMNS);
jTable1.setFillsViewportHeight(true);
jScrollPane1.setHorizontalScrollBarPolicy(
JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
jScrollPane1.setVerticalScrollBarPolicy(
JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);
Add the rows from the JSON response
for(int i=0;i< jsonArr.size();i++)
{
str = jsonArr.get(i).toString();
jsonObj = (JSONObject)parser.parse(str);
String sub = jsonObj.get("subid").toString();
String uname = jsonObj.get("username").toString();
String regno = jsonObj.get("regno").toString();
String percent = jsonObj.get("percent").toString();
model.addRow(new Object[]{sub,uname,regno,percent});
}

Reading a Access file using Jackcess and creating a Jtable with the data

I'm currently working on a Java application that reads an Access file and builds a Jtable model using the data that's collected. I've previously done the same with an Excel file but when I tried with Jackcess it was slightly diffrent and I've ran into some questionmarks.
My work so far:
public class AccessModel{
public DefaultTableModel getAccessModel() throws IOException {
Database db = DatabaseBuilder.open(new File("MyFile.accdb"));
Vector<String> columnNames = new Vector<String>();
Vector<String> vector = new Vector<String>();
Vector<Vector<String>> data = new Vector<Vector<String>>();
StringBuilder output = new StringBuilder();
Table table = db.getTable("Table1");
for (Column column : table.getColumns()) { // get the table column names
output.append(column.getName());
output.append("\n");
columnNames.add(column.getName());
}
for (Column column : table.getColumns()) { // get the column rows and values
vector.add(column.getRowValue(table.getNextRow()).toString());
}
data.add(vector);
// return the model to Gui
DefaultTableModel accessModel = new DefaultTableModel(data, columnNames);
return accessModel;
}
}
As you can see this method will only iterate trough the first row, then exit the loop. I'm either blind to an abvious solution due to 12 hours of straight work, or I'm doing something terribly wrong.
I've stumbled across some half-good solutions where an Iterator is used, but I cannot get the hang of it. Any suggestions on this? Or should I stay on lane with my current line of thought?

JTable (value for view is stored in XxxTableModel, in your case is used DefaultTableModel) is row bases Object,
TableColumn (value is stored in TableColumnModel) to divide row(s) to the columns
you would need to create two Objects,
Vector<String> columnNames (is only one row) for columns identifiers from Table table = db.getTable("Table1");
loop inside Table table = db.getTable("Table1"); to fill two dimensional Vector<Vector<Object>> data = new Vector<Vector<Object>>(); by using Vector<Object> vector = new Vector<Object>();, notice 1st. code line insode loop must be vector = new Vector<Object>();, you have to create a new Vector otherwise you'll add the same rown_times, last code line should be data.add(vector)
.
everything (I'm still think so) is described in Oracle tutorial How to use Tables

Insert row on jtable with DefaulTableModel on different methods

i want to add or insert column from different methods into one table.. cant explain it clearly but i show my codes to you to understand..for example.
(....)
DefaultTableModel dtm = new DefaultTableModel();
JTable table = new JTable();
Constructor(){
table.setModel(dtm);
(.....)
}
public void methodOne(){
String id = num.getText();
rs = stat.executeQuery("SELECT * FROM payments;");
Vector<String> header = new Vector<String>();
header.add("PAYMENT");
header.add("AMOUNT");
header.add("MODIFIER");
header.add("DATE MODIFIED");
Vector<Vector<Object>> data = new Vector<Vector<Object>>();
while(rs.next()) {
Vector<Object> row = new Vector<Object>();
row.add(rs.getString("description"));
row.add(rs.getString("amount"));
row.add(rs.getString("remarks"));
row.add(rs.getString("date"));
data.add(row);
} // loop
dtm.setDataVector(data , header);
JScrollPane scrollPane = new JScrollPane(table);
scrollPane.setBounds(0,0,490,250);
panel.add(scrollPane);
validate();
}
public void methodTwo(){
(.....)
rs = stat.executeQuery("SELECT * FROM record where idNum ='"+id+"';");
while(rs.next()){
Vector<Object> row = new Vector<Object>();
row.add(rs.getString("description"));
row.add(rs.getString("amount"));
row.add(rs.getString("remarks"));
row.add(rs.getString("date"));
data.add(row);
} // while
}
those value inside row are the value i want to add on my table, i dont have any idea on how to id.. i want it to be like this:
first when you run the java it will autoumatically create a table
http://i1023.photobucket.com/albums/af355/guiacustodio/javaaaaaaaaaaaaaaaaaaaaaaa_zpse9a22225.jpg
i have a button and textfield i enter number on the textfield i.e
[PAY BUTTON] TextField:[__100]
i clicked the button and this is what will happen:
http://i1023.photobucket.com/albums/af355/guiacustodio/javaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa_zps43879eab.jpg

First of all, the data Vector you are using is defined inside methodOne so the same data is not accesible via methodTwo.
Secondly it is not because there is data being added to data in a tablemodel that the table will refresh, you have to call one of the methods that trigger an refresh event in the gui, normally one calls the method fireTableChanged on the tablemodel after you added data.
Thridly: there is an interesting library called GlazedLists that handles a lot of these things automatically !

Dynamically add images to JTable cells

I am dynamically adding data to a cell with the following code:
for(int i = 0; i < matchedSlots.size(); i++)
{
String title = matchedSlots.get(i).getTitle();
String director = matchedSlots.get(i).getDirector();
int rating = matchedSlots.get(i).getRating();
int runTime = matchedSlots.get(i).getRunningTime();
DefaultTableModel tm = (DefaultTableModel) searchResults.getModel();
tm.addRow(new Object[] {title,director,rating,runTime});
}
what do I need to add to the above to be able to add an image in the first cell of each row

By default JTable can render Images. You just need to override getColumnClass() in the TableModel and return Icon.class for 1st column.
Look at Renderers and Editors for more details.

ImageIcon image = new ImageIcon("image.gif");
...
tm.addRow(new Object[] {image,title,director,rating,runTime});
You may need to change your table model to account for the new column if you haven't already.
This short article should help you with the image renderer: http://mdsaputra.wordpress.com/2011/06/13/swing-hack-show-image-in-jtable/