Salve a todos!
Estou com uma dúvida aqui em uma tabela que estou criando
para utilizar com banco de dados.
Não consigo fazer com que a coluna para se colocar o nome
de uma vaca (é um projeto agrícola, mas para fazendeiros, é claro) , fique com valor de uma string.
Segue o código:
[code]//http://www.crionics.com/products/opensource/faq/swing_ex/SwingExamples.html
/* (swing1.1) */
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.Enumeration;
import java.util.Hashtable;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JProgressBar;
import javax.swing.JOptionPane;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.UIManager;
import javax.swing.event.TableModelEvent;
import javax.swing.event.TableModelListener;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableModel;
public class TableExample extends JPanel {
public TableExample() {
setLayout(new BorderLayout());
DefaultTableModel dm = new DefaultTableModel() {
public Class getColumnClass(int col) {
switch (col) {
case 0:
return Integer.class;
case 1:
return String.class;
case 2:
return Object.class;
case 3:
return Integer.class;
case 4:
return Integer.class;
case 5:
return Integer.class;
case 6:
return Integer.class;
case 7:
return Integer.class;
default:
return Object.class;
}
}
public boolean isCellEditable(int row, int col) {
switch (col) {
case 2:
return false;
default:
return true;
}
}
public void setValueAt(Object obj, int row, int col) {
if (col != 1) {
super.setValueAt(obj, row, col);
return;
}
try {
Integer integer = new Integer(obj.toString());
// super.setValueAt(checkMinMax(integer), row, col);
}
catch (NumberFormatException ex) {
JOptionPane.showMessageDialog(null, “Valor inválido!”,
“”, JOptionPane.ERROR_MESSAGE);
//ex.printStackTrace();
}
catch (NullPointerException e) {
JOptionPane.showMessageDialog(null, "Por favor, preencha este campo!",
"", JOptionPane.INFORMATION_MESSAGE);
//e.printStackTrace();
}
}
};
dm.setDataVector(new Object[][] {
{ "0", "0", "0", "0", "0", "0", "0", "0"},
{ "0", "0", "0", "0", "0", "0", "0", "0"},
{ "0", "0", "0", "0", "0", "0", "0", "0"},
{ "0", "0", "0", "0", "0", "0", "0", "0"},
{ "0", "0", "0", "0", "0", "0", "0", "0"},
{ "0", "0", "0", "0", "0", "0", "0", "0"},
{ "0", "0", "0", "0", "0", "0", "0", "0"},
{ "0", "0", "0", "0", "0", "0", "0", "0"},
{ "0", "0", "0", "0", "0", "0", "0", "0"},
{ "0", "0", "0", "0", "0", "0", "0", "0"},
{ "0", "0", "0", "0", "0", "0", "0", "0"},
{ "0", "0", "0", "0", "0", "0", "0", "0"},
{ "0", "0", "0", "0", "0", "0", "0", "0"},
{ "0", "0", "0", "0", "0", "0", "0", "0"},
{ "0", "0", "0", "0", "0", "0", "0", "0"},
{ "0", "0", "0", "0", "0", "0", "0", "0"},
{ "0", "0", "0", "0", "0", "0", "0", "0"},
{ "0", "0", "0", "0", "0", "0", "0", "0"},
{ "0", "0", "0", "0", "0", "0", "0", "0"} },
/*ou então assim:
-
{ “0”, new Integer(0), new Integer(0), new Integer(0), new Integer(0) },
*/new Object[] { “Nº”, “Nome”, “Idade”, “Data montagem”, “Data parto”,
“Data de secagem”, “Sexo da cria”, “Data vacina”});
JTable table = new JTable(dm);
table.getModel().addTableModelListener(new TableModelListener() {
public void tableChanged(TableModelEvent e) {
if (e.getType() == TableModelEvent.UPDATE) {
int col = e.getColumn();
if (col == 1) {
int row = e.getFirstRow();
TableModel model = (TableModel) e.getSource();
Integer value = (Integer) model.getValueAt(row, col);
}
}
}
});
JScrollPane pane = new JScrollPane(table);
add(pane, BorderLayout.CENTER);
}
public static void main(String[] args) {
JFrame f = new JFrame(“Projeto Agrícola”);
f.getContentPane()
.add(new TableExample(), BorderLayout.CENTER);
f.setSize(900, 380);
f.setLocation(60,50);
f.setVisible(true);
f.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
}
}
class IndicatorCellRenderer extends JProgressBar implements TableCellRenderer {
private Hashtable limitColors;
private int[] limitValues;
public IndicatorCellRenderer() {
super(JProgressBar.HORIZONTAL);
setBorderPainted(false);
}
public IndicatorCellRenderer(int min, int max) {
super(JProgressBar.HORIZONTAL, min, max);
setBorderPainted(false);
}
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected, boolean hasFocus, int row, int column) {
int n = 0;
if (!(value instanceof Number)) {
String str;
if (value instanceof String) {
str = (String) value;
} else {
str = value.toString();
}
try {
n = Integer.valueOf(str).intValue();
} catch (NumberFormatException ex) {
}
} else {
n = ((Number) value).intValue();
}
Color color = getColor(n);
if (color != null) {
setForeground(color);
}
setValue(n);
return this;
}
public void setLimits(Hashtable limitColors) {
this.limitColors = limitColors;
int i = 0;
int n = limitColors.size();
limitValues = new int[n];
Enumeration e = limitColors.keys();
while (e.hasMoreElements()) {
limitValues[i++] = ((Integer) e.nextElement()).intValue();
}
sort(limitValues);
}
private Color getColor(int value) {
Color color = null;
if (limitValues != null) {
int i;
for (i = 0; i < limitValues.length; i++) {
if (limitValues[i] < value) {
color = (Color) limitColors
.get(new Integer(limitValues[i]));
}
}
}
return color;
}
private void sort(int[] a) {
int n = a.length;
for (int i = 0; i < n - 1; i++) {
int k = i;
for (int j = i + 1; j < n; j++) {
if (a[j] < a[k]) {
k = j;
}
}
int tmp = a[i];
a[i] = a[k];
a[k] = tmp;
}
}
}[/code]
O problema é que alguns campos não querem receber String, mesmo eu definindo
até mesmo todos para receber.
Se precisarem de qualquer coisa, estou por aqui uma vez por semana 
Obrigado a todos pela atenção.
bye!