Selecting JTable row without user interaction

• I haven't any issue with that, meaning

  a) table.changeSelection(row, col, false, false);

  or

  b) table.getSelectedRow()

• maybe everything depends of how is set value for ListSelectionModel

• for better help sooner edit your question with a SSCCE

code

import java.awt.*; import javax.swing.*; import javax.swing.event.*; import javax.swing.table.DefaultTableModel; public class TableSelectionGood implements ListSelectionListener { private JTable[] tables; private boolean ignore = false; public TableSelectionGood() { Object[][] data1 = new Object[100][5]; Object[][] data2 = new Object[50][5]; //Object[][] data3 = new Object[50][5]; for (int i = 0; i < data1.length; i++) { data1[i][0] = "Company # " + (i + 1); for (int j = 1; j < data1[i].length; j++) { data1[i][j] = "" + (i + 1) + ", " + j; } } for (int i = 0; i < data2.length; i++) { data2[i][0] = "Company # " + ((i * 2) + 1); for (int j = 1; j < data2[i].length; j++) { data2[i][j] = "" + ((i * 2) + 1) + ", " + j; } } /*for (int i = 0; i < data3.length; i++) { data3[i][0] = "Company # " + (i * 2); for (int j = 1; j < data3[i].length; j++) { data3[i][j] = "" + (i * 2) + ", " + j; } }*/ String[] headers = {"Col 1", "Col 2", "Col 3", "Col 4", "Col 5"}; DefaultTableModel model1 = new DefaultTableModel(data1, headers); DefaultTableModel model2 = new DefaultTableModel(data2, headers); //DefaultTableModel model3 = new DefaultTableModel(data3, headers); final JTable jTable1 = new JTable(model1); jTable1.setSelectionMode(ListSelectionModel.SINGLE_SELECTION); final JScrollPane sp1 = new JScrollPane(); sp1.setPreferredSize(new Dimension(600, 100)); sp1.setViewportView(jTable1); final JTable jTable2 = new JTable(model2); jTable2.setSelectionMode(ListSelectionModel.SINGLE_SELECTION); final JScrollPane sp2 = new JScrollPane(); sp2.setPreferredSize(new Dimension(600, 100)); sp2.setViewportView(jTable2); /*final JTable jTable3 = new JTable(model3); jTable3.setSelectionMode(ListSelectionModel.SINGLE_SELECTION); final JScrollPane sp3 = new JScrollPane(); sp3.setPreferredSize(new Dimension(600, 100)); sp3.setViewportView(jTable3); TableSelectionGood tableSelection = new TableSelectionGood(jTable1, jTable2, jTable3);*/ TableSelectionGood tableSelection = new TableSelectionGood(jTable1, jTable2); JPanel panel1 = new JPanel(); //panel1.setLayout(new GridLayout(3, 0, 10, 10)); panel1.setLayout(new GridLayout(2, 0, 10, 10)); panel1.add(sp1); panel1.add(sp2); //panel1.add(sp3); JFrame frame = new JFrame("tableSelection"); frame.add(panel1); frame.pack(); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setVisible(true); } public TableSelectionGood(JTable... tables) { for (JTable table : tables) { table.getSelectionModel().addListSelectionListener(this); } this.tables = tables; } private JTable getTable(Object model) { for (JTable table : tables) { if (table.getSelectionModel() == model) { return table; } } return null; } private void changeSelection(JTable table, String rowKey) { int col = table.convertColumnIndexToView(0); for (int row = table.getRowCount(); --row >= 0;) { if (rowKey.equals(table.getValueAt(row, col))) { table.changeSelection(row, col, false, false); return; } } table.clearSelection(); } @Override public void valueChanged(ListSelectionEvent e) { if (e.getValueIsAdjusting() || ignore) { return; } ignore = true; try { JTable table = getTable(e.getSource()); int row = table.getSelectedRow(); String rowKey = table.getValueAt(row, table.convertColumnIndexToView(0)).toString(); for (JTable t : tables) { if (t == table) { continue; } changeSelection(t, rowKey); JViewport viewport = (JViewport) t.getParent(); Rectangle rect = t.getCellRect(t.getSelectedRow(), 0, true); Rectangle r2 = viewport.getVisibleRect(); t.scrollRectToVisible(new Rectangle(rect.x, rect.y, (int) r2.getWidth(), (int) r2.getHeight())); System.out.println(new Rectangle(viewport.getExtentSize()).contains(rect)); System.out.println(table.getSelectedRow()); } } finally { ignore = false; } } public static void main(String[] args) { SwingUtilities.invokeLater(new Runnable() { public void run() { TableSelectionGood tableSelection = new TableSelectionGood(); } }); } } 

Have you tried jtable.setRowSelectionInterval(..) ?

Addition from comment: also try jtable.addRowSelectionInterval(..).