Olá galera,
Sempre que rodo o programa dá a seguinte mensagem de erro.
Exception in thread “AWT-EventQueue-0” java.lang.NullPointerException
at image_measure.FormularioDados.initComponents(FormularioDados.java:62)
at image_measure.FormularioDados.(FormularioDados.java:17)
at image_measure.JanelaInicial.experimentoLegibilidade(JanelaInicial.java:67)
at image_measure.JanelaInicial.access$000(JanelaInicial.java:13)
at image_measure.JanelaInicial$1.actionPerformed(JanelaInicial.java:40)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
at java.awt.Component.processMouseEvent(Component.java:6041)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3265)
at java.awt.Component.processEvent(Component.java:5806)
at java.awt.Container.processEvent(Container.java:2058)
at java.awt.Component.dispatchEventImpl(Component.java:4413)
at java.awt.Container.dispatchEventImpl(Container.java:2116)
at java.awt.Component.dispatchEvent(Component.java:4243)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3986)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916)
at java.awt.Container.dispatchEventImpl(Container.java:2102)
at java.awt.Window.dispatchEventImpl(Window.java:2440)
at java.awt.Component.dispatchEvent(Component.java:4243)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)
CONSTRUÇÃO PARADA (tempo total: 7 segundos)
Não estou conseguindo sanar este erro. Abaixo o código:
public class FormularioDados extends javax.swing.JFrame {
Dados dados;
Banco banco = new Banco();
/** Creates new form FormularioDados */
public FormularioDados(Dados dados) {
this.dados = dados;
banco.preencherListaUsuarios();
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.
*/
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
botaoCancelar = new javax.swing.JButton();
botaoIniciar = new javax.swing.JButton();
cbUsuario = new javax.swing.JComboBox();
jLabel11 = new javax.swing.JLabel();
botaoCadastrarUsuario = new javax.swing.JButton();
jButton1 = new javax.swing.JButton();
campoEMail = new javax.swing.JTextField();
jLabel5 = new javax.swing.JLabel();
setTitle("Declaração de Dados");
setCursor(new java.awt.Cursor(java.awt.Cursor.DEFAULT_CURSOR));
setFont(new java.awt.Font("Arial", 0, 12));
setForeground(new java.awt.Color(186, 238, 159));
setResizable(false);
botaoCancelar.setFont(new java.awt.Font("Arial", 0, 12));
botaoCancelar.setText("Cancelar");
botaoCancelar.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
cancelarExperimento(evt);
}
});
botaoIniciar.setFont(new java.awt.Font("Arial", 0, 12));
botaoIniciar.setText("Iniciar");
botaoIniciar.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
iniciarExperimento(evt);
}
});
cbUsuario.setFont(new java.awt.Font("Arial", 0, 12)); // NOI18N
[b]cbUsuario.setSelectedItem(dados.getNomeUsuario()
);[/b]
cbUsuario.setFont(new java.awt.Font("Arial", 0, 12));
cbUsuario.setModel(new javax.swing.DefaultComboBoxModel(banco.listaUsuarios));
cbUsuario.addItemListener(new java.awt.event.ItemListener() {
public void itemStateChanged(java.awt.event.ItemEvent evt) {
usuarioSelecionado(evt);
}
});
jLabel11.setFont(new java.awt.Font("Arial", 0, 12));
jLabel11.setText("Usuário");
botaoCadastrarUsuario.setFont(new java.awt.Font("Arial", 0, 12));
botaoCadastrarUsuario.setText("Cadastrar Usuário");
botaoCadastrarUsuario.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
cadastrarUsuario(evt);
}
});
jButton1.setFont(new java.awt.Font("Arial", 0, 12));
jButton1.setText("Atualizar");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
Atualizar(evt);
}
});
campoEMail.setFont(new java.awt.Font("Arial", 0, 12));
jLabel5.setFont(new java.awt.Font("Arial", 0, 12));
jLabel5.setText("email");
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel11)
.addComponent(cbUsuario, javax.swing.GroupLayout.PREFERRED_SIZE, 306, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jLabel5)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addGroup(layout.createSequentialGroup()
.addComponent(campoEMail, javax.swing.GroupLayout.PREFERRED_SIZE, 288, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED))
.addGroup(layout.createSequentialGroup()
.addComponent(botaoCadastrarUsuario)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(botaoCancelar)
.addGap(33, 33, 33)))
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(botaoIniciar)
.addComponent(jButton1))))
.addContainerGap(16, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(21, 21, 21)
.addComponent(jLabel11)
.addGap(18, 18, 18)
.addComponent(cbUsuario, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(21, 21, 21)
.addComponent(jLabel5)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(campoEMail, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jButton1))
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(botaoCadastrarUsuario)
.addComponent(botaoIniciar)
.addComponent(botaoCancelar))
.addContainerGap(56, Short.MAX_VALUE))
);
java.awt.Dimension screenSize = java.awt.Toolkit.getDefaultToolkit().getScreenSize();
setBounds((screenSize.width-409)/2, (screenSize.height-270)/2, 409, 270);
}// </editor-fold>
private void Atualizar(java.awt.event.ActionEvent evt) {
dados.setNomeUsuario((String)cbUsuario.getSelectedItem());
banco.setEMail((String)cbUsuario.getSelectedItem(),campoEMail.getText());
campoEMail.setText("");
}
private void usuarioSelecionado(java.awt.event.ItemEvent evt) {
}
private void iniciarExperimento(java.awt.event.ActionEvent evt) {
/*dados.setTipoMonitor((String)cbMonitor.getSelectedItem());
dados.setResolucaoMonitor((String)cbResolucao.getSelectedItem());
dados.setTamanhoMonitor((String)cbTamanho.getSelectedItem());
dados.setDistanciaObservacao((String)cbDistancia.getSelectedItem());*/
dados.setNomeUsuario((String)cbUsuario.getSelectedItem());
dados.setProgresso(0);
dados.setOrdenaImagem(0);
dados.setData();
Experimento experimento = new Experimento(dados);
experimento.setVisible(true);
try{
setVisible(false);
finalize();
System.gc();
}
catch(Throwable tA){
tA.printStackTrace();
}
}
private void cancelarExperimento(java.awt.event.ActionEvent evt) {
try{
setVisible(false);
finalize();
System.gc();
}
catch(Throwable tA){
tA.printStackTrace();
}
}
private void cadastrarUsuario(java.awt.event.ActionEvent evt) {
CadastroDeUsuario cadastroDeUsuario = new CadastroDeUsuario(dados);
cadastroDeUsuario.setVisible(true);
try{
setVisible(false);
finalize();
System.gc();
}
catch(Throwable tA){
tA.printStackTrace();
}
}
/*public static void main(String args[]) {
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new FormularioDados().setVisible(true);
}
});
}*/
// Variables declaration - do not modify
private javax.swing.JButton botaoCadastrarUsuario;
private javax.swing.JButton botaoCancelar;
private javax.swing.JButton botaoIniciar;
private javax.swing.JTextField campoEMail;
private javax.swing.JComboBox cbUsuario;
private javax.swing.JButton jButton1;
private javax.swing.JLabel jLabel11;
private javax.swing.JLabel jLabel5;
// End of variables declaration
}
obs: a linha em negrito é a linha a qual sou direcionado sempre que clico na mensagem de erro.
