Get the min and max ranges of selected cells : Table Selection « Swing « Java Tutorial

1. Java Tutorial
2. Swing
3. Table Selection

import javax.swing.JTable;
import javax.swing.ListSelectionModel;

public class Main {
  public static void main(String[] argv) throws Exception {
    JTable table = new JTable();

    if (table.getCellSelectionEnabled()) {
      table.setSelectionMode(ListSelectionModel.SINGLE_INTERVAL_SELECTION);
      table.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);

      int rowIndexStart = table.getSelectedRow();
      int rowIndexEnd = table.getSelectionModel().getMaxSelectionIndex();
      int colIndexStart = table.getSelectedColumn();
      int colIndexEnd = table.getColumnModel().getSelectionModel().getMaxSelectionIndex();

    }
  }
}