Scroll Cell to visible for JTable in Java

import java.awt.BorderLayout;
import java.awt.Point;
import java.awt.Rectangle;
//  w  w  w  .  ja  va2  s .c  o  m
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JViewport;

public class Main {
  public static void main(String args[]) {
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    Object rowData[][] = { { "Row1-Column1", "Row1-Column2", "Row1-Column3" },
        { "Row2-Column1", "Row2-Column2", "Row2-Column3" },
        { "Row3-Column1", "Row3-Column2", "Row3-Column3" },
        { "Column1", "Column2", "Column3" },
        { "Column1", "Column2", "Column3" },
        { "Column1", "Column2", "Column3" },
        { "Column1", "Column2", "Column3" },
        { "Column1", "Column2", "Column3" },};
    Object columnNames[] = { "Column One", "Column Two", "Column Three" };
    final JTable table = new JTable(rowData, columnNames);

    JScrollPane scrollPane = new JScrollPane(table);


    int rowIndex = 1;
    int vColIndex = 2;
    scrollToVisible(table, rowIndex, vColIndex);
    
    
    frame.add(scrollPane, BorderLayout.CENTER);
    frame.setSize(300, 150);
    frame.setVisible(true);  
  }

  public static void scrollToVisible(JTable table, int rowIndex, int vColIndex) {
    if (!(table.getParent() instanceof JViewport)) {
      return;
    }
    JViewport viewport = (JViewport) table.getParent();
    Rectangle rect = table.getCellRect(rowIndex, vColIndex, true);
    Point pt = viewport.getViewPosition();
    rect.setLocation(rect.x - pt.x, rect.y - pt.y);
    viewport.scrollRectToVisible(rect);
  }
}