Merging cells in JTable

Question

Is it possible to merge some cells of a JTable object?

_{(source: codeguru.com)}

If it's not possible through JTable what is the best approach. Thanks.

Answer 1

You could implement a JTable using a TableModel merging two columns of the original TableModel.

class Model2 extends AbstractTableModel
{
private TableModel delegate;
public Model2(TableModel delegate)
 {
 this.delegate= delegate;
 }

public int getRowCount() { return this.delegate.getRowCount();}
public int getColumnCount() { return this.delegate.getColumnCount()-1;}
public Object getValueAt(int row, int col)
 {
 if(col==0) return ""+delegate.getValueAt(row,col)+delegate.getValueAt(row,col+1);
 return delegate.getValueAt(col+1);
 }
(...)
}