I do not paint my JTABLE

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I do not paint my JTABLE

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#1 by (0 votes)
#2 by (0 votes)

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I have this code

   DefaultTableModel dtm = new DefaultTableModel();
    JTable tabla = new JTable();
    dtm.addColumn("NOMBRE");
    dtm.addColumn("APELLIDOS");
    dtm.addColumn("DNI");
    dtm.addColumn("LOCALIDAD");
    dtm.addColumn("PROVINCIA");
    tabla.setModel(dtm);
    contentPane.add(tabla);

I can not find the table with those columns, do you know what the failure may be?

java java-swing

asked by bsg 29.06.2018 в 11:57

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2 answers

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score 0 · Answer 1

You have to use a scrollPane. for example:

DefaultTableModel dtm = new DefaultTableModel();
    JTable tabla = new JTable();
    JScrollPane scroll = new JScrollPane(tabla);
    dtm.addColumn("NOMBRE");
    dtm.addColumn("APELLIDOS");
    dtm.addColumn("DNI");
    dtm.addColumn("LOCALIDAD");
    dtm.addColumn("PROVINCIA");
    tabla.setModel(dtm);
    contentPane.add(scroll);

score 0 · Answer 2

try this code, it is a small test with a frame and a panel, adding the table you created with your code to the scroll and that scroll adding it to the panel,

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;

/**
 *
 * @author Alberto Loera
 */
public class JtableStack {
  public static void main(String[] args) {
    JFrame frame = new JFrame();
    frame.setVisible(true);
    frame.setSize(800, 600);

    JPanel panel = new JPanel();
    frame.add(panel);

    DefaultTableModel dtm = new DefaultTableModel();
    JTable tabla = new JTable();
    JScrollPane scroll = new JScrollPane(tabla);
    dtm.addColumn("NOMBRE");
    dtm.addColumn("APELLIDOS");
    dtm.addColumn("DNI");
    dtm.addColumn("LOCALIDAD");
    dtm.addColumn("PROVINCIA");
    tabla.setModel(dtm);
    panel.add(scroll);
    panel.updateUI();
  }
}