Java Program to remove the last row from a table with DefaultTableModel

Java 8Object Oriented ProgrammingProgramming

To remove the last row from a table, use the removeRow() method and set its parameter to total number of rows minus 1 since you need to remove the last row.

Let us first see an example to display rows and columns in a JTable −

Example

package my;
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("Interview QA");
      tableModel.addRow(new Object[] { "Blockchain", "Yes", "No", "Yes"});
      tableModel.addRow(new Object[] { "C#", "Yes", "Yes", "Yes"});
      tableModel.addRow(new Object[] { "Java", "Yes", "No", "Yes"});
      tableModel.addRow(new Object[] { "NodeJS", "No", "Yes", "Yes"});
      tableModel.addRow(new Object[] { "MVC", "Yes", "No", "Yes"});
      tableModel.addRow(new Object[] { "ASP.NET", "Yes", "Yes", "Yes"});
      tableModel.addRow(new Object[] { "F#", "Yes", "No", "Yes"});
      tableModel.addRow(new Object[] { "SharePoint", "Yes", "Yes", "Yes"});
      tableModel.addRow(new Object[] { "AWS", "No", "No", "Yes"});
      table.setRowHeight(table.getRowHeight() + 10);
      JFrame f = new JFrame();
      f.setSize(600, 400);
      f.add(new JScrollPane(table));
      f.setVisible(true);
   }
}

The output is as follows. The last row here is “AWS” −

Output

Now we will remove the last row −

Example

package my;
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("Interview QA");
      tableModel.addRow(new Object[] { "Blockchain", "Yes", "No", "Yes"});
      tableModel.addRow(new Object[] { "C#", "Yes", "Yes", "Yes"});
      tableModel.addRow(new Object[] { "Java", "Yes", "No", "Yes"});
      tableModel.addRow(new Object[] { "NodeJS", "No", "Yes", "Yes"});
      tableModel.addRow(new Object[] { "MVC", "Yes", "No", "Yes"});
      tableModel.addRow(new Object[] { "ASP.NET", "Yes", "Yes", "Yes"});
      tableModel.addRow(new Object[] { "F#", "Yes", "No", "Yes"});
      tableModel.addRow(new Object[] { "SharePoint", "Yes", "Yes", "Yes"});
      tableModel.addRow(new Object[] { "AWS", "No", "No", "Yes"});
      table.setRowHeight(table.getRowHeight() + 10);
      // remove last row from the table
      tableModel.removeRow(tableModel.getRowCount() - 1);
      JFrame f = new JFrame();
      f.setSize(600, 400);
      f.add(new JScrollPane(table));
      f.setVisible(true);
   }
}

The output now would display that we have successfully removed the last row “AWS” −

Output

raja
Published on 30-May-2019 11:52:23
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