JTable's multiLine problem!!!

Question

I want to use JTextArea as table's editor,but,there are only JtextFiled,JComboBox,Jcheckbox in DefaultCellEditor class ,there is not JTextArea,How to do?please help me!!!thanks!!!

Answer 1

HI Use this example..
import javax.swing.border.*;
import javax.swing.event.*;
import javax.swing.table.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.*;
import java.awt.*;
public class JTextAreaTableExample extends JFrame
public JTextAreaTableExample()
super( "JTextAreaTableExample Example" );
DefaultTableModel dtm = new DefaultTableModel()
// make first cell uneditable
public boolean isCellEditable(int row, int column)
return !(column == 0);
dtm.setDataVector(new Object[][]{{ "JTextArea1", "This is a test\non long lines\n" },
{ "JTextArea2", "Hello, world!" }},
new Object[]{ "String","JTextArea"});
JTable table = new JTable(dtm);
table.getColumn("JTextArea").setCellRenderer(new TextAreaRenderer());
table.getColumn("JTextArea").setCellEditor(new TextAreaEditor());
table.setRowHeight(80);
JScrollPane scroll = new JScrollPane(table);
getContentPane().add(scroll);
setSize( 400, 250 );
setVisible(true);
public static void main(String[] args) {
JTextAreaTableExample frame = new JTextAreaTableExample();
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
class TextAreaRenderer extends JScrollPane implements TableCellRenderer
JTextArea textarea;
public TextAreaRenderer()
textarea = new JTextArea();
textarea.setLineWrap(true);
textarea.setWrapStyleWord(true);
textarea.setBorder(new TitledBorder("This is a JTextArea"));
getViewport().add(textarea);
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected, boolean hasFocus,
int row, int column)
if (isSelected)
setForeground(table.getSelectionForeground());
setBackground(table.getSelectionBackground());
textarea.setForeground(table.getSelectionForeground());
textarea.setBackground(table.getSelectionBackground());
else
setForeground(table.getForeground());
setBackground(table.getBackground());
textarea.setForeground(table.getForeground());
textarea.setBackground(table.getBackground());
textarea.setText((String) value);
textarea.setCaretPosition(0);
return this;
class TextAreaEditor extends DefaultCellEditor
protected JScrollPane scrollpane;
protected JTextArea textarea;
public TextAreaEditor()
super(new JCheckBox());
scrollpane = new JScrollPane();
textarea = new JTextArea();
textarea.setLineWrap(true);
textarea.setWrapStyleWord(true);
textarea.setBorder(new TitledBorder("This is a JTextArea"));
scrollpane.getViewport().add(textarea);
public Component getTableCellEditorComponent(JTable table, Object value,
boolean isSelected, int row, int column)
textarea.setText((String) value);
return scrollpane;
public Object getCellEditorValue()
System.out.println("value :"+(String) textarea.getText());
return textarea.getText();