Demonstrates the editable property of Swing tables. : JTable Renderer Editor « Swing « Java Tutorial






Demonstrates the editable property of Swing tables.
import javax.swing.DefaultCellEditor;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.TableModel;

public class EditableTable {

  public static void main(String[] a) {
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    String[] columnTitles = { "First Name", "Last Name", "Weight (lb)", "Blood Group", "Age>20yrs" };
    Object[][] dataEntries = { { "Saravan", "Pantham", new Integer(50), "B", new Boolean(false) },
        { "Eric", "", new Integer(180), "O", new Boolean(true) },
        { "John", "", new Integer(120), "AB", new Boolean(false) },
        { "Mathew", "", new Integer(140), "A", new Boolean(true) }, };
    TableModel model = new EditableTableModel(columnTitles, dataEntries);
    JTable table = new JTable(model);
    table.createDefaultColumnsFromModel();

    String[] bloodGroups = { "A", "B", "AB", "O" };
    JComboBox comboBox = new JComboBox(bloodGroups);
    table.getColumnModel().getColumn(3).setCellEditor(new DefaultCellEditor(comboBox));

    frame.add(new JScrollPane(table));

    frame.setSize(300, 200);
    frame.setVisible(true);
  }

}

class EditableTableModel extends AbstractTableModel {
  String[] columnTitles;

  Object[][] dataEntries;

  int rowCount;

  public EditableTableModel(String[] columnTitles, Object[][] dataEntries) {
    this.columnTitles = columnTitles;
    this.dataEntries = dataEntries;
  }

  public int getRowCount() {
    return dataEntries.length;
  }

  public int getColumnCount() {
    return columnTitles.length;
  }

  public Object getValueAt(int row, int column) {
    return dataEntries[row][column];
  }

  public String getColumnName(int column) {
    return columnTitles[column];
  }

  public Class getColumnClass(int column) {
    return getValueAt(0, column).getClass();
  }

  public boolean isCellEditable(int row, int column) {
    return true;
  }

  public void setValueAt(Object value, int row, int column) {
    dataEntries[row][column] = value;
  }
}








14.60.JTable Renderer Editor
14.60.1.Get Default cell Renderer
14.60.2.Get Default Cell Editor
14.60.3.Default Editors and Renderers
14.60.4.Rendering Table Cells: To install the renderer as the default renderer for the JTable for Object.classRendering Table Cells: To install the renderer as the default renderer for the JTable for Object.class
14.60.5.implements TableCellRendererimplements TableCellRenderer
14.60.6.extends DefaultCellEditorextends DefaultCellEditor
14.60.7.Cell Renderer for the Gender ColumnCell Renderer for the Gender Column
14.60.8.Demonstrates the editable property of Swing tables.Demonstrates the editable property of Swing tables.
14.60.9.An Editor for the Gender ColumnAn Editor for the Gender Column
14.60.10.ColorChooserEditor
14.60.11.Using a JComboBox in a Cell in a JTable Component
14.60.12.Editing Table Cells: JComboBox As Table Cell RendererEditing Table Cells: JComboBox As Table Cell Renderer
14.60.13.Using a List JSpinner as a Cell Editor in a JTable Component
14.60.14.Using default Boolean value cell editor and rendererUsing default Boolean value cell editor and renderer
14.60.15.Creating a Class-Based Custom Cell Renderer in a JTable Component
14.60.16.Creating a Custom Cell Renderer in a JTable Component
14.60.17.Preventing Invalid Values in a Cell in a JTable Component
14.60.18.Using Built-In Cell Renderers and Editors in a JTable Component
14.60.19.Save the current value in the cell being edited and stops the editing process
14.60.20.Discard any changes made by the user and stops the editing process