HighLishg search text in JTable

Question

Hi, I want to search for particular words in JTable, I am able to search for JTextComponent using HighLighter ,
same way I convered my all data of JTable to JTextComponent, but Its failing to give the Index text.indexOf(pattern, pos)(where text is my JTextComponent , pattern is my search word, and pos is 0 initial),
below is the code,
public void highlight(JTextComponent textComp, String pattern) {
          // First remove all old highlights
          removeHighlights(textComp);
          try {
                Highlighter hilite = textComp.getHighlighter();
               Document doc = textComp.getDocument();
               String text = doc.getText(0, doc.getLength());
               int pos = 0;
               System.out.println(text);
               System.out.println(pattern);
               System.out.println(text.indexOf(pattern, pos));
               // Search for pattern
               while ((pos = text.indexOf(pattern, pos)) >= 0) {
                    // Create highlighter using private painter and apply around
                    // pattern
                    hilite.addHighlight(pos, pos + pattern.length(),
                              myHighlightPainter);
                    pos += pattern.length();
          } catch (BadLocationException e) {
     public void highlight(JTable table, String pattern) {
          // First remove all old highlights
          try {
               //calling table
                table.setModel(new javax.swing.table.DefaultTableModel(
                        new Object [][] {
                           {"One two three four"},
                           {"Uno dos tres quatro"},
                           {"Odin dva tri chetire"},
                           {"1111 2222 3333 4444 One"}
                        new String [] {
                           "Strings"
                        Class[] types = new Class [] {
                           java.lang.String.class
                        public Class getColumnClass(int columnIndex) {
                           return types [columnIndex];
               int numRows = table.getRowCount();
              int numCols = table.getColumnCount();
              javax.swing.table.TableModel model = table.getModel();
              JTextComponent textComp = null;
              for (int i = 0; i < numRows; i++) {
              for (int j = 0; j < numCols; j++) {
                   System.out.print(" " + model.getValueAt(i, j));
                   DefaultCellEditor ed = (DefaultCellEditor)table.getCellEditor(i,j);
                   textComp = (JTextComponent)ed.getComponent();
              removeHighlights(textComp);
              Highlighter hilite = textComp.getHighlighter();
               Document doc = textComp.getDocument();
               String text = doc.getText(0, doc.getLength());
               int pos = 0;
               System.out.println(text);
               System.out.println(pattern);
               System.out.println(text.indexOf(pattern, pos));
               // Search for pattern
               while ((pos = text.indexOf(pattern, pos)) >= 0) {
                    // Create highlighter using private painter and apply around
                    // pattern
                    hilite.addHighlight(pos, pos + pattern.length(),
                              myHighlightPainter);
                    pos += pattern.length();
          } catch (BadLocationException e) {
     } It will really help if nay one find why its giving -1 for index.
Thanks
Srikanth

Answer 1

below is the solution
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.BorderFactory;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.table.TableCellRenderer;
import javax.swing.text.DefaultHighlighter;
public class TableCellRendererBug extends JFrame {
     private boolean DEBUG = false;
     public TableCellRendererBug() {
          super("TableCellRendererBug");
          Object[][] data = { { "Jay Four Four Jay", "Four" }, { "Jay", "Jay" }, };
          String[] columnNames = { "Column 1", "Column 2" };
          JTable table = new JTable(data, columnNames);
          table.setPreferredScrollableViewportSize(new Dimension(200, 50));
          // Create the scroll pane and add the table to it.
          JScrollPane scrollPane = new JScrollPane(table);
          table.setDefaultRenderer(Object.class, new CellHighlightRenderer());
          System.out.println(table.getColumnClass(0).toString());
          // Add the scroll pane to this window.
          getContentPane().add(scrollPane, BorderLayout.CENTER);
          addWindowListener(new WindowAdapter() {
               public void windowClosing(WindowEvent e) {
                    System.exit(0);
     class CellHighlightRenderer extends JTextField implements TableCellRenderer {
          public DefaultHighlighter high = new DefaultHighlighter();
          public DefaultHighlighter.DefaultHighlightPainter highlight_painter = new DefaultHighlighter.DefaultHighlightPainter(
                    new Color(198, 198, 250));
          public CellHighlightRenderer() {
               setBorder(BorderFactory.createEmptyBorder());
               setHighlighter(high);
          public Component getTableCellRendererComponent(JTable table,
                    Object value, boolean isSelected, boolean hasFocus, int row,
                    int column) {
               setFont(table.getFont());
               setValue(value);
               int len = getText().length();
               int first = (row & 1) + 1;
               int last = (row & 1) + first + 1;
               int pos =0;
               String pattern="Jay";
               //if (len > last) {
               while ((pos = value.toString().indexOf(pattern, pos)) >= 0) {
                    try {
                         //high.addHighlight(first, last, highlight_painter);
                         high.addHighlight(pos, pos + pattern.length(), highlight_painter);
                         pos += pattern.length();
                    } catch (Exception e) {
                         e.printStackTrace();
               return this;
          protected void setValue(Object value) {
               setText((value == null) ? "" : value.toString());
     public static void main(String[] args) {
          TableCellRendererBug frame = new TableCellRendererBug();
          frame.pack();
          frame.setVisible(true);
Srikanth