//First code
tblViewCsv.requestFocus();
tblViewCsv.changeSelection(rownumber, 0, false, false);

//2nd code
tblViewCsv.getSelectionModel().setSelectionInterval(rownumber, rownumber);
tblViewCsv.scrollRectToVisible(new Rectangle(tblViewCsv.getCellRect(rownumber, 0, true)));

 //3rd code
 JViewport viewport = (JViewport) tblViewCsv.getParent();
 Rectangle rect = tblViewCsv.getCellRect(rownumber, 0, true);
 Rectangle viewRect = viewport.getViewRect();
 rect.setLocation(rect.x - viewRect.x, rect.y - viewRect.y);

 int centerX = (viewRect.width - rect.width) / 2;
 int centerY = (viewRect.height - rect.height) / 2;
 if (rect.x < centerX) {
     centerX = -centerX;
 }
 if (rect.y < centerY) {
     centerY = -centerY;
 }
 rect.translate(centerX, centerY);
 viewport.scrollRectToVisible(rect);