Somar uma coluna da jTable e mostrar o resultado em um jTextField

1 resposta
E

Olá tuma do Bem, mais uma vez com uma dúvida em relação ao Jtable, meu objetivo é pegar o valor da coluna de minha tabela e somar os valores em um JtextField, ja fiz alguns exemplos que encontrei, mais nao mostra o resultado no campo indicado, to postando o codigo e me digam o q ta errado por favor

package br.com.amconsu;

import br.com.amconsu.acessodb.Conexao;
import java.sql.SQLException;
import java.text.DecimalFormat;
import javax.swing.ImageIcon;
import javax.swing.JOptionPane;
import javax.swing.table.DefaultTableModel;

/**
 *
 * @author Edvan
 */
public class MovCaixa extends javax.swing.JFrame {

    /**
     * Creates new form MovCaixa
     */
    
    int navega = 0;
    Conexao con_caixa;
    public MovCaixa() {
        initComponents();
        con_caixa = new Conexao();
        con_caixa.conecta();
        con_caixa.executeSQL("SELECT * FROM CAIXA");
    
        preencher_tab();
            try{
            con_caixa.resultset.last();
            mostrar_dados();
        }catch(SQLException erro){
            JOptionPane.showMessageDialog(null, "Não foi possível localizar dados! "+erro);
        }
       
        
    }
    /**
     * 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.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {

        jPanel1 = new javax.swing.JPanel();
        jLabel1 = new javax.swing.JLabel();
        jPanel2 = new javax.swing.JPanel();
        jScrollPane1 = new javax.swing.JScrollPane();
        TabMov = new javax.swing.JTable();
        jPanel3 = new javax.swing.JPanel();
        jLabel2 = new javax.swing.JLabel();
        descri = new javax.swing.JTextField();
        data = new javax.swing.JFormattedTextField();
        jLabel3 = new javax.swing.JLabel();
        jLabel4 = new javax.swing.JLabel();
        entra = new javax.swing.JTextField();
        jLabel5 = new javax.swing.JLabel();
        jLabel6 = new javax.swing.JLabel();
        jCBoxS = new javax.swing.JComboBox();
        sai = new javax.swing.JTextField();
        jPanel5 = new javax.swing.JPanel();
        jBNovo = new javax.swing.JButton();
        jBSalvar = new javax.swing.JButton();
        cod = new javax.swing.JTextField();
        jPanel4 = new javax.swing.JPanel();
        jLabel7 = new javax.swing.JLabel();
        jLabel8 = new javax.swing.JLabel();
        jLabel12 = new javax.swing.JLabel();
        totalTot = new javax.swing.JTextField();
        resuEnt = new javax.swing.JTextField();
        resuSai = new javax.swing.JTextField();

        setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);
        setResizable(false);

        jPanel1.setBackground(new java.awt.Color(51, 102, 0));
        jPanel1.setForeground(new java.awt.Color(51, 102, 0));

        jLabel1.setFont(new java.awt.Font("Tahoma", 1, 24)); // NOI18N
        jLabel1.setForeground(new java.awt.Color(255, 255, 255));
        jLabel1.setText("Movimento de Caixa");

        javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jLabel1)
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jLabel1)
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );

        jPanel2.setBorder(javax.swing.BorderFactory.createTitledBorder(null, "Movimentos", javax.swing.border.TitledBorder.DEFAULT_JUSTIFICATION, javax.swing.border.TitledBorder.DEFAULT_POSITION, new java.awt.Font("Arial", 1, 12))); // NOI18N

        TabMov.setModel(new javax.swing.table.DefaultTableModel(
            new Object [][] {
                {null, null, null, null, null},
                {null, null, null, null, null},
                {null, null, null, null, null},
                {null, null, null, null, null}
            },
            new String [] {
                "Data", "Descrição", "Situação", "Valor de Entrada", "Valor de Saída"
            }
        ));
        TabMov.setAutoResizeMode(javax.swing.JTable.AUTO_RESIZE_OFF);
        jScrollPane1.setViewportView(TabMov);
        TabMov.getColumnModel().getColumn(0).setPreferredWidth(80);
        TabMov.getColumnModel().getColumn(1).setPreferredWidth(350);
        TabMov.getColumnModel().getColumn(2).setPreferredWidth(100);
        TabMov.getColumnModel().getColumn(3).setPreferredWidth(110);
        TabMov.getColumnModel().getColumn(4).setPreferredWidth(110);

        javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2);
        jPanel2.setLayout(jPanel2Layout);
        jPanel2Layout.setHorizontalGroup(
            jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jScrollPane1, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, 755, Short.MAX_VALUE)
        );
        jPanel2Layout.setVerticalGroup(
            jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel2Layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 180, Short.MAX_VALUE)
                .addContainerGap())
        );

        jLabel2.setText("Data:");

        descri.setEditable(false);

        data.setEditable(false);
        try {
            data.setFormatterFactory(new javax.swing.text.DefaultFormatterFactory(new javax.swing.text.MaskFormatter("##/##/####")));
        } catch (java.text.ParseException ex) {
            ex.printStackTrace();
        }
        data.setHorizontalAlignment(javax.swing.JTextField.CENTER);

        jLabel3.setText("Descrição");

        jLabel4.setText("Valor de Entrada");

        entra.setEditable(false);

        jLabel5.setText("Valor de Saída");

        jLabel6.setText("Situação");

        jCBoxS.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "Receita", "Despesa" }));

        sai.setEditable(false);

        jBNovo.setFont(new java.awt.Font("Tahoma", 1, 11)); // NOI18N
        jBNovo.setText("Novo Movimento");
        jBNovo.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jBNovoActionPerformed(evt);
            }
        });

        jBSalvar.setFont(new java.awt.Font("Tahoma", 1, 11)); // NOI18N
        jBSalvar.setText("Gravar");
        jBSalvar.setEnabled(false);
        jBSalvar.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jBSalvarActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout jPanel5Layout = new javax.swing.GroupLayout(jPanel5);
        jPanel5.setLayout(jPanel5Layout);
        jPanel5Layout.setHorizontalGroup(
            jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel5Layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jBNovo, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addComponent(jBSalvar, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)))
        );
        jPanel5Layout.setVerticalGroup(
            jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel5Layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jBNovo, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addComponent(jBSalvar, javax.swing.GroupLayout.PREFERRED_SIZE, 49, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );

        javax.swing.GroupLayout jPanel3Layout = new javax.swing.GroupLayout(jPanel3);
        jPanel3.setLayout(jPanel3Layout);
        jPanel3Layout.setHorizontalGroup(
            jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel3Layout.createSequentialGroup()
                .addGroup(jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(jPanel3Layout.createSequentialGroup()
                        .addGap(28, 28, 28)
                        .addGroup(jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addGroup(jPanel3Layout.createSequentialGroup()
                                .addGroup(jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                    .addGroup(jPanel3Layout.createSequentialGroup()
                                        .addGroup(jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                            .addComponent(jLabel3)
                                            .addComponent(jLabel6))
                                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                                        .addGroup(jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                            .addComponent(jCBoxS, javax.swing.GroupLayout.PREFERRED_SIZE, 107, javax.swing.GroupLayout.PREFERRED_SIZE)
                                            .addComponent(descri)))
                                    .addGroup(jPanel3Layout.createSequentialGroup()
                                        .addComponent(jLabel4)
                                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                        .addComponent(entra, javax.swing.GroupLayout.PREFERRED_SIZE, 118, javax.swing.GroupLayout.PREFERRED_SIZE)
                                        .addGap(48, 48, 48)
                                        .addComponent(jLabel5)
                                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                        .addComponent(sai, javax.swing.GroupLayout.PREFERRED_SIZE, 118, javax.swing.GroupLayout.PREFERRED_SIZE)))
                                .addGap(157, 157, 157))
                            .addGroup(jPanel3Layout.createSequentialGroup()
                                .addComponent(jLabel2)
                                .addGap(30, 30, 30)
                                .addComponent(data, javax.swing.GroupLayout.PREFERRED_SIZE, 86, javax.swing.GroupLayout.PREFERRED_SIZE)
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))))
                    .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel3Layout.createSequentialGroup()
                        .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                        .addComponent(cod, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(94, 94, 94)))
                .addComponent(jPanel5, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap())
        );
        jPanel3Layout.setVerticalGroup(
            jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel3Layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jPanel5, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addGroup(jPanel3Layout.createSequentialGroup()
                        .addComponent(cod, javax.swing.GroupLayout.PREFERRED_SIZE, 0, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(8, 8, 8)
                        .addGroup(jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                            .addComponent(jLabel2)
                            .addComponent(data, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                        .addGap(18, 18, 18)
                        .addGroup(jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                            .addComponent(jLabel3)
                            .addComponent(descri, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                        .addGap(9, 9, 9)
                        .addGroup(jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                            .addComponent(jLabel6)
                            .addComponent(jCBoxS, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                        .addGap(18, 18, 18)
                        .addGroup(jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                            .addComponent(jLabel4)
                            .addComponent(entra, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addComponent(jLabel5)
                            .addComponent(sai, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                        .addGap(0, 20, Short.MAX_VALUE)))
                .addContainerGap())
        );

        jPanel4.setBorder(javax.swing.BorderFactory.createTitledBorder(null, "Balanço Geral", javax.swing.border.TitledBorder.DEFAULT_JUSTIFICATION, javax.swing.border.TitledBorder.DEFAULT_POSITION, new java.awt.Font("Arial", 1, 14))); // NOI18N

        jLabel7.setBackground(new java.awt.Color(51, 153, 0));
        jLabel7.setFont(new java.awt.Font("Tahoma", 0, 14)); // NOI18N
        jLabel7.setForeground(new java.awt.Color(51, 153, 0));
        jLabel7.setText("Entrada:");

        jLabel8.setBackground(new java.awt.Color(51, 153, 0));
        jLabel8.setFont(new java.awt.Font("Tahoma", 0, 14)); // NOI18N
        jLabel8.setForeground(new java.awt.Color(255, 0, 0));
        jLabel8.setText("Saída:");

        jLabel12.setFont(new java.awt.Font("Tahoma", 1, 12)); // NOI18N
        jLabel12.setText("Total");

        totalTot.setEditable(false);
        totalTot.setFont(new java.awt.Font("Tahoma", 1, 14)); // NOI18N

        resuEnt.setFont(new java.awt.Font("Tahoma", 0, 12)); // NOI18N
        resuEnt.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                resuEntActionPerformed(evt);
            }
        });

        resuSai.setFont(new java.awt.Font("Tahoma", 0, 12)); // NOI18N

        javax.swing.GroupLayout jPanel4Layout = new javax.swing.GroupLayout(jPanel4);
        jPanel4.setLayout(jPanel4Layout);
        jPanel4Layout.setHorizontalGroup(
            jPanel4Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel4Layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(jPanel4Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jLabel8)
                    .addComponent(jLabel7))
                .addGap(18, 18, 18)
                .addGroup(jPanel4Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(resuEnt, javax.swing.GroupLayout.PREFERRED_SIZE, 112, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(resuSai, javax.swing.GroupLayout.PREFERRED_SIZE, 112, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(18, 18, 18)
                .addGroup(jPanel4Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(jPanel4Layout.createSequentialGroup()
                        .addGap(0, 3, Short.MAX_VALUE)
                        .addComponent(totalTot, javax.swing.GroupLayout.PREFERRED_SIZE, 144, javax.swing.GroupLayout.PREFERRED_SIZE))
                    .addGroup(jPanel4Layout.createSequentialGroup()
                        .addComponent(jLabel12, javax.swing.GroupLayout.PREFERRED_SIZE, 61, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(0, 0, Short.MAX_VALUE)))
                .addContainerGap())
        );
        jPanel4Layout.setVerticalGroup(
            jPanel4Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel4Layout.createSequentialGroup()
                .addGap(0, 0, Short.MAX_VALUE)
                .addGroup(jPanel4Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel4Layout.createSequentialGroup()
                        .addGroup(jPanel4Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                            .addComponent(resuEnt, javax.swing.GroupLayout.PREFERRED_SIZE, 25, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addComponent(jLabel7))
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addGroup(jPanel4Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                            .addComponent(jLabel8)
                            .addComponent(resuSai, javax.swing.GroupLayout.PREFERRED_SIZE, 25, javax.swing.GroupLayout.PREFERRED_SIZE)))
                    .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel4Layout.createSequentialGroup()
                        .addComponent(jLabel12)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(totalTot, javax.swing.GroupLayout.PREFERRED_SIZE, 43, javax.swing.GroupLayout.PREFERRED_SIZE)))
                .addContainerGap())
        );

        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(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(0, 5, Short.MAX_VALUE))
                    .addComponent(jPanel4, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addContainerGap())
            .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                .addGroup(layout.createSequentialGroup()
                    .addContainerGap()
                    .addComponent(jPanel3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(206, 206, 206)
                .addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jPanel4, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addGap(16, 16, 16))
            .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                .addGroup(layout.createSequentialGroup()
                    .addGap(78, 78, 78)
                    .addComponent(jPanel3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addContainerGap(364, Short.MAX_VALUE)))
        );

        java.awt.Dimension screenSize = java.awt.Toolkit.getDefaultToolkit().getScreenSize();
        setBounds((screenSize.width-799)/2, (screenSize.height-643)/2, 799, 643);
    }// </editor-fold>
 private void novoCaixa(){
        habilitarCampos();
        cod.setText("");
        data.setText("");
        descri.setText("");
        jCBoxS.setSelectedItem("Receita");
        entra.setText("");
        sai.setText("");
        data.requestFocus();
        
        
        
    }     
    
    private boolean verificarCampos(){
      if(!data.getText().trim().equals("") ){
          return true;
      } 
        return false;
    }
    private void habilitarCampos(){
        
        data.setEditable(true);
        descri.setEditable(true);
        jCBoxS.setEditable(true);
        entra.setEditable(true);
        sai.setEditable(true);
        jBSalvar.setEnabled(true);
        
        
   }
    private void jBNovoActionPerformed(java.awt.event.ActionEvent evt) {                                       
        novoCaixa();

    }                                      

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

        try {
            String sql = "", tipo = "";
            if (cod.getText().equals("")) {
                sql = "INSERT INTO CAIXA (data_2, descricao, "
                        + "situacao, entrada, saida) values ('"
                        + data.getText() + "','"
                        + descri.getText() + "','"
                        + jCBoxS.getSelectedItem() + "','"
                        + entra.getText() + "','"
                        + sai.getText() + "')";
                tipo = "Gravação de Novo registro ";
            } else {
                /**sql = "UPDATE caixa SET  data_2  = '" + data.getText() + "', "
                        + "descricao = '" + descri.getText() + "',"
                        + " situacao  = '" + jCBoxS.getSelectedItem() + "',"
                        + " entrada  = '" + entra.getText() + "', saida  = '" + sai.getText() + "' where idLcaixa = " + cod.getText();
                tipo = "Alteração de registro ";*/
            }
            con_caixa.statement.executeUpdate(sql);
            JOptionPane.showMessageDialog(null, tipo + "realizada com sucesso!");
            con_caixa.resultset = con_caixa.statement.executeQuery("SELECT * FROM caixa");
            con_caixa.resultset.first();
            mostrar_dados();
            preencher_tab();
        } catch (SQLException erro) {
            JOptionPane.showMessageDialog(null, "Erro ao tentar gravar registro!");
        }
        
    }                                        

    private void resuEntActionPerformed(java.awt.event.ActionEvent evt) {
        resuEnt.setText(new DecimalFormat(".00").format(somaValores()));
    }
    
    public Double somaValores() {
        double valor = 0.0;
        for(int i = 0; i < TabMov.getModel().getRowCount(); i++) {
        valor += Double.valueOf ( TabMov.getValueAt( i, 3).toString());
     }
     return valor;
     
 }  
  
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        /*
         * Set the Nimbus look and feel
         */
        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
        /*
         * If Nimbus (introduced in Java SE 6) is not available, stay with the
         * default look and feel. For details see
         * http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
         */
        try {
            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    javax.swing.UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (ClassNotFoundException ex) {
            java.util.logging.Logger.getLogger(MovCaixa.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(MovCaixa.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(MovCaixa.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(MovCaixa.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        //</editor-fold>

        /*
         * Create and display the form
         */
        java.awt.EventQueue.invokeLater(new Runnable() {

            public void run() {
                new MovCaixa().setVisible(true);
            }
        });
    }
    // Variables declaration - do not modify
    private javax.swing.JTable TabMov;
    private javax.swing.JTextField cod;
    private javax.swing.JFormattedTextField data;
    private javax.swing.JTextField descri;
    private javax.swing.JTextField entra;
    private javax.swing.JButton jBNovo;
    private javax.swing.JButton jBSalvar;
    private javax.swing.JComboBox jCBoxS;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel12;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JLabel jLabel4;
    private javax.swing.JLabel jLabel5;
    private javax.swing.JLabel jLabel6;
    private javax.swing.JLabel jLabel7;
    private javax.swing.JLabel jLabel8;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JPanel jPanel2;
    private javax.swing.JPanel jPanel3;
    private javax.swing.JPanel jPanel4;
    private javax.swing.JPanel jPanel5;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JTextField resuEnt;
    private javax.swing.JTextField resuSai;
    private javax.swing.JTextField sai;
    private javax.swing.JTextField totalTot;
    // End of variables declaration

 public void mostrar_dados(){
try{
        
        cod.setText(con_caixa.resultset.getString("idLcaixa"));
        data.setText(con_caixa.resultset.getString("data_2"));
        descri.setText(con_caixa.resultset.getString("descricao"));
        jCBoxS.setSelectedItem(con_caixa.resultset.getString("situacao"));
        entra.setText(con_caixa.resultset.getString("entrada"));
        sai.setText(con_caixa.resultset.getString("saida"));      
        
        
        }catch(SQLException erro){
            if (navega == 1)
                JOptionPane.showMessageDialog(null, "Você já está no primeiro registro");
            else if (navega == 2)
                JOptionPane.showMessageDialog(null, "Você já está no último registro");
            else
            JOptionPane.showMessageDialog(null, "Não foi possível localizar dados! "+erro);
    }       navega = 0;
 }
 public void preencher_tab(){
        TabMov.getColumnModel().getColumn(0).setPreferredWidth(80);
        TabMov.getColumnModel().getColumn(1).setPreferredWidth(350);
        TabMov.getColumnModel().getColumn(2).setPreferredWidth(100);
        TabMov.getColumnModel().getColumn(3).setPreferredWidth(110);
        TabMov.getColumnModel().getColumn(4).setPreferredWidth(110);
        
       
        
        DefaultTableModel modelo = (DefaultTableModel)TabMov.getModel();
        modelo.setNumRows(0);
        
        try{
            while (con_caixa.resultset.next())
                modelo.addRow(new Object[]{con_caixa.resultset.getString("data_2"), 
                    con_caixa.resultset.getString("descricao"), con_caixa.resultset.getString("situacao"), 
                    con_caixa.resultset.getString("entrada"),con_caixa.resultset.getString("saida")});
        }catch(SQLException erro){
            JOptionPane.showMessageDialog(null, "Erro ao listar dados!"+erro);
        }

}
      
    }

1 Resposta

ViniGodoy

Tem vários problemas nesse seu código:

  1. Você está concatenando dados no Statement, o que torna o código sujeito ao ataque de SQL Injection. Também gera problema caso existem caracteres como aspas simples ’ no texto (por exemplo, tente adicionar como item um sanduíche do MacDonald’s). No lugar, utilize o PreparedStatement;
  2. Seu código de banco de dados está misturado no código da interface gráfica.
  3. Não estou vendo classes de negócio para representar seus dados;
  4. Você está usando DefaltTableModel ao invés de usar um model próprio (veja o link na minha assinatura).
Criado 12 de outubro de 2012
Ultima resposta 12 de out. de 2012
Respostas 1
Participantes 2