java - How to clear contents of a jTable ?

Question

I have a jTable and it's got a table model defined like this:

javax.swing.table.TableModel dataModel = 
     new javax.swing.table.DefaultTableModel(data, columns);
tblCompounds.setModel(dataModel);

Does anyone know how I can clear its contents ? Just so it returns to an empty table ?

Answer 1

Easiest way:

//private TableModel dataModel;
private DefaultTableModel dataModel;


void setModel() {
  Vector data = makeData();
  Vector columns = makeColumns();
  dataModel = new DefaultTableModel(data, columns);
  table.setModel(dataModel);
}

void reset() {
  dataModel.setRowCount(0);
}

i.e. your reset method tell the model to have 0 rows of data The model will fire the appropriate data change events to the table which will rebuild itself.