Java

package test;

import java.awt.Component;
import java.util.Random;

import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextArea;
import javax.swing.SwingUtilities;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.TableColumnModelEvent;
import javax.swing.event.TableColumnModelListener;
import javax.swing.table.TableCellRenderer;
@SuppressWarnings("serial")
public class Test extends JFrame implements TableColumnModelListener {
    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {public void run() {
            new Test().setVisible(true);
        }});
    }

    private static final int ROWS = 5, COLS = 4;
    private final JTable table = new JTable(ROWS, COLS);

    public Test() {
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setSize(600, 400);
        add(new JScrollPane(table));
        table.getTableHeader().getColumnModel().addColumnModelListener(this);
        table.setFillsViewportHeight(true);
        table.setRowHeight(27);
        table.setDefaultRenderer(Object.class, new StringRenderer());
        String template = "Aenean ut orci vel massa suscipit pulvinar. Nulla sollicitudin. "
            + "Fusce varius, ligula non tempus aliquam, nunc turpis ullamcorper "
            + "nibh, in tempus sapien eros vitae ligula. Pellentesque rhoncus "
            + "nunc et augue. Integer id felis. Curabitur aliquet pellentesque "
            + "diam. Integer quis metus vitae elit lobortis egestas. Lorem ipsum "
            + "dolor sit amet, consectetuer adipiscing elit";
        int tempLen = template.length();
        for (int row = 0; row < ROWS; ++row) {
            for (int col = 0; col < COLS; ++col) {
                Random random = new Random();
                table.setValueAt(template.substring(random.nextInt(tempLen)),
                    row, col);
            }
        }
    }

    @Override
    public void columnMarginChanged(ChangeEvent e) {
        for (int row = 0; row < table.getRowCount(); ++row) {
            adjustRowHeight(table, row);
        }
    }

    @Override
    public void columnAdded(TableColumnModelEvent e) {}

    @Override
    public void columnRemoved(TableColumnModelEvent e) {}

    @Override
    public void columnMoved(TableColumnModelEvent e) {}

    @Override
    public void columnSelectionChanged(ListSelectionEvent e) {}

    private void adjustRowHeight(JTable table, int rowIndex) {
        int tallestCellHeight = 0;
        for (int columnIndex = 0; columnIndex < table.getColumnCount(); ++columnIndex) {
            TableCellRenderer cellRenderer = table.getCellRenderer(rowIndex, columnIndex);
            Component cellContent = table.prepareRenderer(cellRenderer, rowIndex, columnIndex);
            int cellHeight = cellContent.getPreferredSize().height;
            tallestCellHeight = Math.max(tallestCellHeight, cellHeight);
        }

        if (tallestCellHeight != table.getRowHeight(rowIndex)) {
            table.setRowHeight(rowIndex, tallestCellHeight);
        }
    }

    @SuppressWarnings("serial")
    private class StringRenderer extends JTextArea implements TableCellRenderer {

        public Component getTableCellRendererComponent(JTable table,
            Object value, boolean isSelected, boolean hasFocus, int row,
            int column) {

            setLineWrap(true); setWrapStyleWord(true);
            setText((String) value);
            
            /*
             * these two lines are needed to have the resizing working
             */ 
//            setSize(table.getColumnModel().getColumn(column).getWidth(), 0);
//            getUI().getRootView(this).setSize(getWidth(), 0f);
            return this;
        }
    }
}

setSize(table.getColumnModel().getColumn(column).getWidth(), 0);<br />
getUI().getRootView(this).setSize(getWidth(), 0f);