Java - Crear un número variable de checkbox


Crear un número variable de checkbox

Publicado por Susana (18 intervenciones) el 04/02/2010 18:47:39

estoy haciendo un programa en Java y me encuentro en la siguiente situación:

Tengo que crear un número VARIABLE de checkbox . Cuando uno de ellos sea pulsado, dependiendo de cual, sea se pintará una fila de una tabla ,

Si la tabla tiene tres filas, tendremos tres checkbox y si pulsa el primer checkbox se pintará la primara fila de la tabla

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una tabla con checkbox

Publicado por Marisela (1 intervención) el 04/02/2010 21:30:41
bueno ... tengo este codigo....correlo y haber si te sirve

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.AbstractTableModel;
import java.awt.Dimension;
import java.awt.GridLayout;

* TableDemo is just like SimpleTableDemo, except that it
* uses a custom TableModel.
public class TableDemo extends JPanel {
private boolean DEBUG = false;

public TableDemo() {
super(new GridLayout(1,0));

JTable table = new JTable(new MyTableModel());
table.setPreferredScrollableViewportSize(new Dimension(500, 70));

//Create the scroll pane and add the table to it.

JScrollPane scrollPane = new JScrollPane(table);

//Add the scroll pane to this panel.

class MyTableModel extends AbstractTableModel {
private String[] columnNames = {"First Name",
"Last Name",
"# of Years",
private Object[][] data = {
{"Mary", "Campione",
"Snowboarding", new Integer(5), new Boolean(false)},
{"Alison", "Huml",
"Rowing", new Integer(3), new Boolean(true)},
{"Kathy", "Walrath",
"Knitting", new Integer(2), new Boolean(false)},
{"Sharon", "Zakhour",
"Speed reading", new Integer(20), new Boolean(true)},
{"Philip", "Milne",
"Pool", new Integer(10), new Boolean(false)},

public int getColumnCount() {
return columnNames.length;

public int getRowCount() {
return data.length;

public String getColumnName(int col) {
return columnNames[col];

public Object getValueAt(int row, int col) {
return data[row][col];

* JTable uses this method to determine the default renderer/
* editor for each cell. If we didn't implement this method,
* then the last column would contain text ("true"/"false"),
* rather than a check box.
public Class getColumnClass(int c) {
return getValueAt(0, c).getClass();

* Don't need to implement this method unless your table's
* editable.
public boolean isCellEditable(int row, int col) {
//Note that the data/cell address is constant,
//no matter where the cell appears onscreen.
if (col < 2) {
return false;
} else {
return true;

* Don't need to implement this method unless your table's
* data can change.
public void setValueAt(Object value, int row, int col) {
if (DEBUG) {
System.out.println("Setting value at " + row + "," + col
+ " to " + value
+ " (an instance of "
+ value.getClass() + ")");

data[row][col] = value;
fireTableCellUpdated(row, col);

if (DEBUG) {
System.out.println("New value of data:");

private void printDebugData() {
int numRows = getRowCount();
int numCols = getColumnCount();

for (int i=0; i < numRows; i++) {
System.out.print(" row " + i + ":");
for (int j=0; j < numCols; j++) {
System.out.print(" " + data[i][j]);

* Create the GUI and show it. For thread safety,
* this method should be invoked from the
* event-dispatching thread.
private static void createAndShowGUI() {
//Create and set up the window.
JFrame frame = new JFrame("TableDemo");

//Create and set up the content pane.
TableDemo newContentPane = new TableDemo();
newContentPane.setOpaque(true); //content panes must be opaque

//Display the window.

public static void main(String[] args) {
//Schedule a job for the event-dispatching thread:
//creating and showing this application's GUI.
javax.swing.SwingUtilities.invokeLater(new Runnable() {

public void run() {

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