I want to make 25 JTables. I generate the table names by doing:
for(int i=0; i < 26; i++)
{
TableNames[i] = "Table" + i + "";
...
How can I go about using these String names in the array as the new JTable names? i.e.
TableNames[i] = new JTable(model){ ...
Instead of an array, consider using a List<JTable>
or List<TableModel>
. Pass the name to the table's constructor or factory method. The example below uses the Component
's name, but a JComponent
's client property may be more versatile.
Update: The revised Java 8 example below illustrates how to add new tables dynamically.
import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.util.ArrayList;
import java.util.List;
import javax.swing.AbstractAction;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollBar;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.event.ListSelectionEvent;
import javax.swing.table.DefaultTableModel;
/**
* @see http://stackoverflow.com/a/10623134/230513
*/
public class NamedTableTest extends JPanel {
private static final int N = 25;
private final List<JTable> list = new ArrayList<>();
public NamedTableTest() {
super(new GridLayout(0, 1));
for (int i = 0; i < N; i++) {
list.add(new NamedTable("Table " + String.valueOf(i)));
this.add(list.get(i));
}
}
private static class NamedTable extends JTable {
public NamedTable(final String name) {
super(new DefaultTableModel(1, 1) {
@Override
public Object getValueAt(int row, int col) {
return name + ", " + row + ", " + col;
}
});
this.setName(name);
}
@Override
public void valueChanged(ListSelectionEvent e) {
if (!e.getValueIsAdjusting()) {
System.out.println(NamedTable.this.getName());
}
}
}
private void display() {
JFrame f = new JFrame("NamedTable");
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
final JScrollPane jsp = new JScrollPane(this);
f.add(jsp);
f.add(new JButton(new AbstractAction("Add") {
@Override
public void actionPerformed(ActionEvent e) {
list.add(new NamedTable("Table " + String.valueOf(list.size())));
NamedTableTest.this.add(list.get(list.size() - 1));
NamedTableTest.this.validate();
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
JScrollBar sb = jsp.getVerticalScrollBar();
sb.setValue(sb.getMaximum());
}
});
}
}), BorderLayout.SOUTH);
f.pack();
f.setLocationRelativeTo(null);
f.setVisible(true);
}
public static void main(String[] args) {
EventQueue.invokeLater(() -> {
new NamedTableTest().display();
});
}
}
TableNames[i] = new JTable(model)
put inside the for loop
i agree previous statement make error
try this
for(i=0;i<TableNames.length();i++)
{
new JTable(TableName[i]);
}