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public class MyTable extends TableModel{
public static final int C = 12;
public static final int R = 25;
public String[][] data;

public MyTable(String[] h, String[][] data) {
...

My table model implements:
public boolean isCellEditable(int rowIndex, int columnsIndex);
public void removeTableModelListerner(TableModelListener s);
public void...

I got another question, i have to implement a Event Listener that catch the event of a edited cell in the tab.
Where and how i can implements this?

Ok, i found the error, the method public Class<?> getColumnClass(int columnIndex) was not implemented (throw new UnsupportedOperationException("Not supported yet."); ) but the program compiled and...

When i create a JTable in this way:


JTable tab = new JTable(a,b);

where a is an String [][] and b String[]

The problem is set the TableModel, when i insert this line: