How to highlight multiple rows in a sequence in a table with Java Swing?

To highlight multiple rows in a table, you can use the addRowSelectionInterval() method. At first create a table −

DefaultTableModel tableModel = new DefaultTableModel();
JTable table = new JTable(tableModel);

Add some columns −

tableModel.addColumn("Language/ Technology");
tableModel.addColumn("Text Tutorial");
tableModel.addColumn("Video Tutorial");
tableModel.addColumn("Views");

Now, add rows to the table −

tableModel.addRow(new Object[] { "NodeJS", "No", "Yes", "2350"});
tableModel.addRow(new Object[] { "MVC", "Yes", "No", "1500"});
tableModel.addRow(new Object[] { "ASP.NET", "Yes", "Yes", "3400"});
tableModel.addRow(new Object[] { "F#", "Yes", "No", "7890"});
tableModel.addRow(new Object[] { "Blockchain", "Yes", "No", "10600"});
tableModel.addRow(new Object[] { "SharePoint", "Yes", "Yes", "4900"});

Highlight multiple rows by adding interval of rows from both ends. Set interval (index) for both the parameters since we want multiple rows to be highlighted −

table.addRowSelectionInterval(5, 1);

The following is an example to highlight multiple rows in a sequence in JTable −

Example

package my;
import java.awt.Color;
import java.awt.Font;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;
public class SwingDemo {
   public static void main(String[] argv) throws Exception {
      DefaultTableModel tableModel = new DefaultTableModel();
      JTable table = new JTable(tableModel);
      tableModel.addColumn("Language/ Technology");
      tableModel.addColumn("Text Tutorial");
      tableModel.addColumn("Video Tutorial");
      tableModel.addColumn("Views");
      tableModel.addRow(new Object[] { "NodeJS", "No", "Yes", "2350"});
      tableModel.addRow(new Object[] { "MVC", "Yes", "No", "1500"});
      tableModel.addRow(new Object[] { "ASP.NET", "Yes", "Yes", "3400"});
      tableModel.addRow(new Object[] { "F#", "Yes", "No", "7890"});
      tableModel.addRow(new Object[] { "Blockchain", "Yes", "No", "10600"});
      tableModel.addRow(new Object[] { "SharePoint", "Yes", "Yes", "4900"});
      tableModel.addRow(new Object[] { "AWS", "No", "Yes", "8900"});
      tableModel.addRow(new Object[] { "C#", "Yes", "Yes", "1300"});
      tableModel.addRow(new Object[] { "Java", "Yes", "No", "9686"});
      tableModel.addRow(new Object[] { "jQuery", "Yes", "Yes", "4500"});
      tableModel.addRow(new Object[] { "Python", "Yes", "No", "6789"});
      tableModel.addRow(new Object[] { "Scala", "Yes", "No", "3400"});
      tableModel.addRow(new Object[] { "Swift", "No", "Yes", "9676"});
      table.addRowSelectionInterval(5, 1);
      table.setBackground(Color.BLUE);
      table.setForeground(Color.white);
      Font font = new Font("Verdana", Font.CENTER_BASELINE, 12);
      table.setFont(font);
      JFrame frame = new JFrame();
      frame.setSize(600, 400);
      frame.add(new JScrollPane(table));
      frame.setVisible(true);
   }
}

Output