JDesktop e JInternalFrame

Assuntos Gerais
#1

Pessoal estou tendo problemas para fazer um JInternalFrame aparecer num Jdesktop.

vejam o q estou fazendo:

Código do JFrame q contém o JDesktop que irá chamar o JInternalFrame:

[code]/*

  • Main.java
  • Created on 13 de Abril de 2005, 10:52
    */

/**
*

  • @author Rodrigo Rocha
    */
    public class Main extends javax.swing.JFrame {
    Cadastro cadastro = new Cadastro();

    /** Creates new form Main */
    public Main() {
    initComponents();
    jDesktop.add(cadastro, javax.swing.JLayeredPane.DEFAULT_LAYER);
    }

    /** This method is called from within the constructor to

    • initialize the form.

    • WARNING: Do NOT modify this code. The content of this method is

    • always regenerated by the Form Editor.
      */
      private void initComponents() {
      jDesktop = new javax.swing.JDesktopPane();
      jMenuBar1 = new javax.swing.JMenuBar();
      jMenu1 = new javax.swing.JMenu();
      jMenuItem1 = new javax.swing.JMenuItem();

      setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
      setTitle(“GESTOR”);
      getContentPane().add(jDesktop, java.awt.BorderLayout.CENTER);

      jMenu1.setText(“Clientes”);
      jMenu1.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(java.awt.event.ActionEvent evt) {
      jMenu1ActionPerformed(evt);
      }
      });

      jMenuItem1.setText(“Cadastro”);
      jMenuItem1.setName(“jMcadastro”);
      jMenuItem1.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(java.awt.event.ActionEvent evt) {
      jMenuItem1ActionPerformed(evt);
      }
      });

      jMenu1.add(jMenuItem1);

      jMenuBar1.add(jMenu1);

      setJMenuBar(jMenuBar1);

      pack();
      }

    private void jMenuItem1ActionPerformed(java.awt.event.ActionEvent evt) {

    // TODO add your handling code here:

    }

    private void jMenu1ActionPerformed(java.awt.event.ActionEvent evt) {

     cadastro.setVisible(true);
 // TODO add your handling code here:

    }

    /**

    • @param args the command line arguments
      */
      public static void main(String args[]) {
      java.awt.EventQueue.invokeLater(new Runnable() {
      public void run() {
      new Main().setVisible(true);
      }
      });
      }

    // Variables declaration - do not modify
    private javax.swing.JDesktopPane jDesktop;
    private javax.swing.JMenu jMenu1;
    private javax.swing.JMenuBar jMenuBar1;
    private javax.swing.JMenuItem jMenuItem1;
    // End of variables declaration

}[/code]

código do JInternalFrame:

[code]public class Cadastro extends javax.swing.JInternalFrame {

/** Creates new form Cadastro */
public Cadastro() {
    initComponents();
}

/** This method is called from within the constructor to
 * initialize the form.
 * WARNING: Do NOT modify this code. The content of this method is
 * always regenerated by the Form Editor.
 */
private void initComponents() {
    java.awt.GridBagConstraints gridBagConstraints;

    jLabel1 = new javax.swing.JLabel();
    jTextField1 = new javax.swing.JTextField();
    jLabel2 = new javax.swing.JLabel();
    jTextField2 = new javax.swing.JTextField();

    getContentPane().setLayout(new java.awt.GridBagLayout());

    setClosable(true);
    setIconifiable(true);
    setMaximizable(true);
    setTitle("Cadastro");
    setVisible(true);
    jLabel1.setText("Nome:");
    gridBagConstraints = new java.awt.GridBagConstraints();
    gridBagConstraints.gridx = 0;
    gridBagConstraints.gridy = 0;
    gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
    getContentPane().add(jLabel1, gridBagConstraints);

    jTextField1.setName("txtNome");
    jTextField1.setPreferredSize(new java.awt.Dimension(250, 21));
    gridBagConstraints = new java.awt.GridBagConstraints();
    gridBagConstraints.gridx = 0;
    gridBagConstraints.gridy = 1;
    getContentPane().add(jTextField1, gridBagConstraints);

    jLabel2.setText("Endere\u00e7o:");
    gridBagConstraints = new java.awt.GridBagConstraints();
    gridBagConstraints.gridx = 0;
    gridBagConstraints.gridy = 3;
    gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
    getContentPane().add(jLabel2, gridBagConstraints);

    jTextField2.setPreferredSize(new java.awt.Dimension(250, 21));
    gridBagConstraints = new java.awt.GridBagConstraints();
    gridBagConstraints.gridx = 0;
    gridBagConstraints.gridy = 4;
    gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST;
    getContentPane().add(jTextField2, gridBagConstraints);

    pack();
}


// Variables declaration - do not modify
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JTextField jTextField1;
private javax.swing.JTextField jTextField2;
// End of variables declaration

}[/code]

Alguém pode me ajudar?

#2

qual seu problema ?

#3

Eu clico no menu Cadastro ele abre se eu fecho a janela não consigo abrir nomvamente

#4

dá alguma exceção ?

#5

Não

#6

o método jMenuItem1ActionPerformed é onde vc deve colocar o codigo:

System.out.println("Menu clicked!");
Cadastro cadastro = new Cadastro();
cadastro.setVisible(true);
jDesktop.add(cadastro);

quando não der exceção e vc não souber o que teu codigo ta aprontando, sempre é bom um System.out e tentar ao menos saber onde ele tá passando…

Ou talvez um debug.

#7