[Solved] Sort JTable progrommatically and by clicking column header

A. Sort by clicking at column header

1. Set all column headers clickable for sorting

JTable table = new JTable();
table.setModel(new MyTableModel());

//This will allow sort by clicking column header
table.setAutoCreateRowSorter(true);

//To programmatically reverse the order of sorting of a column
table.getRowSorter().toggleSortOrder(<columnIndex>);

2. Set sorting by a particular column in the beggining
     
TableRowSorter<MyTableModel> sorter = new TableRowSorter<>(table.getModel());
table.setRowSorter(sorter);

//or

//table.setAutoCreateRowSorter(true);

//DefaultRowSorter sorter = (DefaultRowSorter)table.getRowSorter();

List<RowSorter.SortKey> sortKeys = new ArrayList<>();
sortKeys.add(new RowSorter.SortKey(<columnIndex>, SortOrder.ASCENDING));

sorter.setSortKeys(sortKeys);

B. Sort programmatically on values in one column

public class SortableVector<E> extends Vector<E> implements Comparable<E> {
      public SortableVector(List values) {
            super(vaules);
        }

      public int compareTo(Object obj) {
            SortableVector<E> r2 = (SortableVector<E>) obj;
            Object v1 = get(<columnIndex>);
            Object v2 = r2.get(<columnIndex>);

           if (v1 <= v2) {
                 return -1;
           }
           return 1;
      }
}

public class MyTableModel extends DefaultTableModel{
      public void sort() {
            Vector<SortableVector<Object>> data = getDataVector();
            Collections.sort(data);
        }
}

MyTableModel model = new MyTableModel();
model.addRow(new SortableVector<>(Arrays.asList(new String[] {"Apple", "East Street"})));
mode.addRow(new SortableVector<>(Arrays.asList(new String[] {"Orange", "Main Ave"})));
mode.addRow(new SortableVector<>(Arrays.asList(new String[] {"Mangle", "5th Street"})));

JTable table = new JTable();
table.setModel(model);

//When data is changed, call the sort() method.
if (table.getCellEditor() != null) {
      table.getCellEditor().stopCellEditing();
}
model.sort();
model.fireTableDataChanged();

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