Problem dispaying jtable data

Question

Hello All, and thanks for any help.
I have a jTable that is populated with an array of strings. During the
course of the program these values get changed depending on the selection of
a jcombobox. What I have noticed is that I am unable to set the initial
values back in the table. I can set the values to any other of my data
string arrays except the initial ones. I am using the setValue method of the
table model. Here is the jtable tablemodel constructor:
class MyTableModel extends AbstractTableModel {
String[] columnNames = {"Nom. dia.","Dia. (in)",
"Instal. Cost",
Object [][] data = pipeschedlight;
public int getColumnCount() {
return columnNames.length;
public int getRowCount() {
return data.length;
public String getColumnName(int col) {
return columnNames[col];
public Object getValueAt(int row, int col) {
return data[row][col];
* JTable uses this method to determine the default renderer/
* editor for each cell. If we didn't implement this method,
* then the last column would contain text ("true"/"false"),
* rather than a check box.
public Class getColumnClass(int c) {
return getValueAt(0, c).getClass();
* Don't need to implement this method unless your table's
* editable.
public boolean isCellEditable(int row, int col) {
//Note that the data/cell address is constant,
//no matter where the cell appears onscreen.
//if (col < 2) {
//return false;
//} else {
return true;
* Don't need to implement this method unless your table's
* data can change.
public void setValueAt(Object value, int row, int col) {
if (DEBUG) {
System.out.println("Setting value at " + row + "," + col
+ " to " + value
+ " (an instance of "
+ value.getClass() + ")");
data[row][col] = value;
fireTableCellUpdated(row, col);
if (DEBUG) {
System.out.println("New value of data:");
printDebugData();
private void printDebugData() {
int numRows = getRowCount();
int numCols = getColumnCount();
for (int i=0; i < numRows; i++) {
System.out.print(" row " + i + ":");
for (int j=0; j < numCols; j++) {
System.out.print(" " + data[i][j]);
System.out.println();
System.out.println("--------------------------");
Cheers,
Jacques

Answer 1

Sorry, this is the wrong forum, I am going to transfer this to the swing forum.
Jacques