Java - ¿Cómo guardar datos double en un archivo txt y mostrarlos? - JAVA Jframe

package procto.final2;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileWriter;

import java.io.IOException;

import java.io.PrintWriter;

import static java.lang.System.exit;

import java.util.Formatter;

import java.util.Properties;

import javax.swing.JOptionPane;

import javax.swing.table.DefaultTableModel;

public class Frm_PacientesDatos extends javax.swing.JFrame {

    String barra = File.separator;

    String ubicacion = System.getProperty("user.dir")+barra+"Registros"+barra;

    File contenedor = new File(ubicacion);

    File [] registros = contenedor.listFiles();

    String [] titulos = {"Codigo","Nombre","Apellido","Edad","Telefono","Altura","Peso","Imci","Imca"};

    DefaultTableModel mdlTabla = new DefaultTableModel(null, titulos);

    private void Crear(){

        String archivo = txtCodigo.getText()+".registros";

        File crea_ubicacion = new File(ubicacion);

        File crea_archivo = new File(ubicacion+archivo);

       if(txtCodigo.getText().equals("")){

            JOptionPane.showMessageDialog(rootPane, "NO HAY CODIGO");

       }//cierra if

       else{

            try{

               if(crea_archivo.exists()){

                   JOptionPane.showMessageDialog(rootPane, "El registro ya existe");

               }//cierra if

               else{

                   crea_ubicacion.mkdirs();

                   Formatter crea = new Formatter(ubicacion+archivo);

                   crea.format("%s\r\n%s\r\n%s\r\n%s\r\n%s\r\n%.2f\r\n%.2f\r\n%.2f\r\n%.2f", "Codigo="+txtCodigo.getText(),

                           "Nombre="+txtNombre.getText(), "Apellido="+txtApellido.getText(),

                           "Edad="+txtEdad.getText(), "Telefono="+txtTelefono.getText(),

                           "Altura="+txtAltura.getText(), "Peso="+txtPeso.getText(),

                           "Imci="+txtImci.getText(), "Imca="+txtImca.getText());

                   /*

                   Double altura;

                   Double peso;

                   Double imca = peso/(altura*altura);*/

                   crea.close();

                   JOptionPane.showMessageDialog(rootPane, "Archivo del paciente guardado");

                   jComboBox.removeAllItems();

                   registros = contenedor.listFiles();

                   MostrarCombo();

                   ActualizarTabla();

               }//cierra else

            }//cierra try

            catch(Exception e){

               JOptionPane.showMessageDialog(rootPane, "NO SE PUDO GUARDAR EL ARCHIVO");

            }//cierra catch

       }//cierra else

    }

    private void Mostrar(){

        File url = new File(ubicacion+txtCodigo.getText()+".registros");

        if(txtCodigo.getText().equals("")){

            JOptionPane.showMessageDialog(rootPane, "Indique el ID para Mostar");

        }//cierra if

        else{

            if(url.exists()){

                try{

                    FileInputStream fis = new FileInputStream(url);

                    Properties mostrar = new Properties();

                    mostrar.load(fis);

                    txtNombre.setText(mostrar.getProperty("Nombre"));

                    txtApellido.setText(mostrar.getProperty("Apellido"));

                    txtEdad.setText(mostrar.getProperty("Edad"));

                    txtTelefono.setText(mostrar.getProperty("Telefono"));

                    txtAltura.setText(mostrar.getProperty("Altura"));

                    txtPeso.setText(mostrar.getProperty("Peso"));

                    txtImci.setText(mostrar.getProperty("Imci"));

                    txtImca.setText(mostrar.getProperty("Imca"));

                }//cierra try

                catch(Exception e){

                }//cierra catch

            }//cierra if2

            else{

                JOptionPane.showMessageDialog(rootPane, "Ese registro no existe");

            }//cierra else2

        }//cierra else

    }

    private void Editar(){

        File url = new File(ubicacion+txtCodigo.getText()+".registros");

        if(txtCodigo.getText().equals("")){

            JOptionPane.showMessageDialog(rootPane, "Indique el registro que desa editar");

        }//cierra if

        else{

            if(url.exists()){

                try {

                    FileWriter permite_escrito = new FileWriter(ubicacion+txtCodigo.getText()+".registros");

                    String codigo = "Codigo=";

                    String nombre = "Nombre=";

                    String apellido = "Apellido=";

                    String edad = "Edad=";

                    String telefono = "Telefono=";

                    String altura = "Altura=";

                    String peso = "Peso=";

                    String imci = "Imci=";

                    String imca = "Imca=";

                        PrintWriter guardar = new PrintWriter(permite_escrito);

                        guardar.println(codigo+txtCodigo.getText());

                        guardar.println(nombre+txtNombre.getText());

                        guardar.println(apellido+txtApellido.getText());

                        guardar.println(edad+txtEdad.getText());

                        guardar.println(telefono+txtTelefono.getText());

                        guardar.println(altura+txtAltura.getText());

                        guardar.println(peso+txtPeso.getText());

                        guardar.println(imci+txtImci.getText());

                        guardar.println(imca+txtImca.getText());

                        permite_escrito.close();

                        JOptionPane.showMessageDialog(rootPane, "Registro editado correctamente");

                        ActualizarTabla();

                }//cierra try

                catch(Exception e){

                    JOptionPane.showMessageDialog(rootPane, "error"+e);

                }//cierra catch

            }//cierra if

            else{

                JOptionPane.showMessageDialog(rootPane, "El registro no existe");

            }//cierra else

        }//cierra else

    }

    private void Eliminar(){

        File url = new File(ubicacion+txtCodigo.getText()+".registros");

        String botones [] = {"Eliminar", "Cancelar"};

        if(txtCodigo.getText().equals("")){

            JOptionPane.showMessageDialog(rootPane, "Indique cual registro desa elminar");

        }//cierra if

        else{

            if(url.exists()){

                try{

                    FileInputStream cerrar = new FileInputStream(url);

                    cerrar.close();

                    System.gc();

                    int seguro = JOptionPane.showOptionDialog(rootPane,

                            "¿Esta seguro de elminar el regsitro? "+txtCodigo.getText(),

                            "Eliminacion", 0, 0, null, botones, null);

                    if(seguro == JOptionPane.YES_OPTION){

                        url.delete();

                        JOptionPane.showMessageDialog(rootPane, "Regsitro eliminado");

                        jComboBox.removeItem(txtCodigo.getText());

                        ActualizarTabla();

                    }//cierra if3

                    if(seguro == JOptionPane.NO_OPTION){

                    }//cierra if4

                }//cierra try

                catch(Exception e){

                }//cierra catch

            }//cierra if2

            else{

            }//cierra else2

        }//cierra else

    }

    private void MostrarCombo() {

        for(int i=0; i<registros.length; i++){

            jComboBox.addItem(registros[i].getName().replace(".registros", ""));

        }

    }

    private void RegTabla(){

        for(int i=0; i<registros.length; i++){

            File url = new File(ubicacion+registros[i].getName());

            try{

                FileInputStream fis = new FileInputStream(url);

                Properties mostrar = new Properties();

                mostrar.load(fis);

                String filas [] = {registros[i].getName().replace(".registros", ""),

                    mostrar.getProperty("Nombre"),mostrar.getProperty("Apellido"),mostrar.getProperty("Edad"),

                    mostrar.getProperty("Telefono"),mostrar.getProperty("Altura"),mostrar.getProperty("Peso"),

                    mostrar.getProperty("Imci"),mostrar.getProperty("Imca")};

               mdlTabla.addRow(filas);

            }//cierra try

            catch(Exception e){

            }//cierra catch

        }//cierra for

        tblReporte.setModel(mdlTabla);

    }

    public Frm_PacientesDatos() {

        initComponents();

        setLocationRelativeTo(null);

        MostrarCombo();

        RegTabla();

    }

    private void ActualizarTabla(){

        registros = contenedor.listFiles();

        mdlTabla.setRowCount(0);

        RegTabla();

    }

    @SuppressWarnings("unchecked")

    // <editor-fold defaultstate="collapsed" desc="Generated Code">

    private void initComponents() {

        jLabel1 = new javax.swing.JLabel();

        txtCodigo = new javax.swing.JTextField();

        jLabel2 = new javax.swing.JLabel();

        jComboBox = new javax.swing.JComboBox<>();

        txtNombre = new javax.swing.JTextField();

        jLabel3 = new javax.swing.JLabel();

        txtApellido = new javax.swing.JTextField();

        jLabel7 = new javax.swing.JLabel();

        txtEdad = new javax.swing.JTextField();

        jLabel4 = new javax.swing.JLabel();

        txtTelefono = new javax.swing.JTextField();

        jLabel5 = new javax.swing.JLabel();

        txtAltura = new javax.swing.JTextField();

        jLabel6 = new javax.swing.JLabel();

        txtPeso = new javax.swing.JTextField();

        jLabel8 = new javax.swing.JLabel();

        txtImci = new javax.swing.JTextField();

        jLabel9 = new javax.swing.JLabel();

        txtImca = new javax.swing.JTextField();

        btnGuardar = new javax.swing.JButton();

        btnMostrarDatos = new javax.swing.JButton();

        btnSalir = new javax.swing.JButton();

        jScrollPane1 = new javax.swing.JScrollPane();

        tblReporte = new javax.swing.JTable();

        btnEditar = new javax.swing.JButton();

        btnEliminar = new javax.swing.JButton();

        jLabel11 = new javax.swing.JLabel();

        jLabel10 = new javax.swing.JLabel();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        getContentPane().setLayout(new org.netbeans.lib.awtextra.AbsoluteLayout());

        jLabel1.setForeground(new java.awt.Color(0, 0, 0));

        jLabel1.setText("CÓDIGO:");

        getContentPane().add(jLabel1, new org.netbeans.lib.awtextra.AbsoluteConstraints(20, 10, -1, -1));

        txtCodigo.addActionListener(new java.awt.event.ActionListener() {

            public void actionPerformed(java.awt.event.ActionEvent evt) {

                txtCodigoActionPerformed(evt);

            }

        });

        getContentPane().add(txtCodigo, new org.netbeans.lib.awtextra.AbsoluteConstraints(100, 10, 178, -1));

        jLabel2.setForeground(new java.awt.Color(0, 0, 0));

        jLabel2.setText("NOMBRE:");

        getContentPane().add(jLabel2, new org.netbeans.lib.awtextra.AbsoluteConstraints(20, 53, -1, -1));

        jComboBox.setBackground(new java.awt.Color(121, 205, 218));

        jComboBox.addComponentListener(new java.awt.event.ComponentAdapter() {

            public void componentShown(java.awt.event.ComponentEvent evt) {

                jComboBoxComponentShown(evt);

            }

        });

        jComboBox.addActionListener(new java.awt.event.ActionListener() {

            public void actionPerformed(java.awt.event.ActionEvent evt) {

                jComboBoxActionPerformed(evt);

            }

        });

        getContentPane().add(jComboBox, new org.netbeans.lib.awtextra.AbsoluteConstraints(285, 10, 110, -1));

        getContentPane().add(txtNombre, new org.netbeans.lib.awtextra.AbsoluteConstraints(100, 50, 178, -1));

        jLabel3.setForeground(new java.awt.Color(0, 0, 0));

        jLabel3.setText("APELLIDO:");

        getContentPane().add(jLabel3, new org.netbeans.lib.awtextra.AbsoluteConstraints(20, 90, -1, 20));

        getContentPane().add(txtApellido, new org.netbeans.lib.awtextra.AbsoluteConstraints(100, 90, 178, -1));

        jLabel7.setForeground(new java.awt.Color(0, 0, 0));

        jLabel7.setText("EDAD:");

        getContentPane().add(jLabel7, new org.netbeans.lib.awtextra.AbsoluteConstraints(20, 130, -1, 40));

        txtEdad.addActionListener(new java.awt.event.ActionListener() {

            public void actionPerformed(java.awt.event.ActionEvent evt) {

                txtEdadActionPerformed(evt);

            }

        });

        getContentPane().add(txtEdad, new org.netbeans.lib.awtextra.AbsoluteConstraints(100, 140, 179, -1));

        jLabel4.setForeground(new java.awt.Color(0, 0, 0));

        jLabel4.setText("TELÉFONO:");

        getContentPane().add(jLabel4, new org.netbeans.lib.awtextra.AbsoluteConstraints(20, 190, -1, 40));

        getContentPane().add(txtTelefono, new org.netbeans.lib.awtextra.AbsoluteConstraints(100, 200, 178, -1));

        jLabel5.setForeground(new java.awt.Color(0, 0, 0));

        jLabel5.setText("ALTURA:");

        getContentPane().add(jLabel5, new org.netbeans.lib.awtextra.AbsoluteConstraints(20, 250, -1, 40));

        txtAltura.addActionListener(new java.awt.event.ActionListener() {

            public void actionPerformed(java.awt.event.ActionEvent evt) {

                txtAlturaActionPerformed(evt);

            }

        });

        getContentPane().add(txtAltura, new org.netbeans.lib.awtextra.AbsoluteConstraints(100, 260, 178, -1));

        jLabel6.setForeground(new java.awt.Color(0, 0, 0));

        jLabel6.setText("PESO:");

        getContentPane().add(jLabel6, new org.netbeans.lib.awtextra.AbsoluteConstraints(20, 310, -1, 40));

        getContentPane().add(txtPeso, new org.netbeans.lib.awtextra.AbsoluteConstraints(100, 320, 178, -1));

        jLabel8.setForeground(new java.awt.Color(0, 0, 0));

        jLabel8.setText("IMC INICIAL:");

        getContentPane().add(jLabel8, new org.netbeans.lib.awtextra.AbsoluteConstraints(440, 10, -1, 20));

        txtImci.addActionListener(new java.awt.event.ActionListener() {

            public void actionPerformed(java.awt.event.ActionEvent evt) {

                txtImciActionPerformed(evt);

            }

        });

        getContentPane().add(txtImci, new org.netbeans.lib.awtextra.AbsoluteConstraints(540, 10, 120, -1));

        jLabel9.setForeground(new java.awt.Color(0, 0, 0));

        jLabel9.setText("IMC ACTUAL:");

        getContentPane().add(jLabel9, new org.netbeans.lib.awtextra.AbsoluteConstraints(440, 50, -1, 20));

        getContentPane().add(txtImca, new org.netbeans.lib.awtextra.AbsoluteConstraints(540, 50, 120, -1));

        btnGuardar.setBackground(new java.awt.Color(83, 216, 153));

        btnGuardar.setText("GUARDAR");

        btnGuardar.setToolTipText("");

        btnGuardar.setMargin(new java.awt.Insets(0, 0, 0, 0));

        btnGuardar.addActionListener(new java.awt.event.ActionListener() {

            public void actionPerformed(java.awt.event.ActionEvent evt) {

                btnGuardarActionPerformed(evt);

            }

        });

        getContentPane().add(btnGuardar, new org.netbeans.lib.awtextra.AbsoluteConstraints(10, 380, 90, 40));

        btnMostrarDatos.setBackground(new java.awt.Color(83, 216, 153));

        btnMostrarDatos.setText("MOSTRAR DATOS");

        btnMostrarDatos.addActionListener(new java.awt.event.ActionListener() {

            public void actionPerformed(java.awt.event.ActionEvent evt) {

                btnMostrarDatosActionPerformed(evt);

            }

        });

        getContentPane().add(btnMostrarDatos, new org.netbeans.lib.awtextra.AbsoluteConstraints(130, 380, 140, 40));

        btnSalir.setBackground(new java.awt.Color(83, 216, 153));

        btnSalir.setFont(new java.awt.Font("Dialog", 1, 24)); // NOI18N

        btnSalir.setText("Salir");

        btnSalir.addActionListener(new java.awt.event.ActionListener() {

            public void actionPerformed(java.awt.event.ActionEvent evt) {

                btnSalirActionPerformed(evt);

            }

        });

        getContentPane().add(btnSalir, new org.netbeans.lib.awtextra.AbsoluteConstraints(830, 680, 140, 60));

        tblReporte.setBackground(new java.awt.Color(121, 205, 218));

        tblReporte.setModel(new javax.swing.table.DefaultTableModel(

            new Object [][] {

            },

            new String [] {

            }

        ));

        tblReporte.setSelectionForeground(new java.awt.Color(0, 0, 0));

        tblReporte.addMouseListener(new java.awt.event.MouseAdapter() {

            public void mouseClicked(java.awt.event.MouseEvent evt) {

                tblReporteMouseClicked(evt);

            }

        });

        jScrollPane1.setViewportView(tblReporte);

        getContentPane().add(jScrollPane1, new org.netbeans.lib.awtextra.AbsoluteConstraints(0, 430, 770, 330));

        btnEditar.setBackground(new java.awt.Color(83, 216, 153));

        btnEditar.setText("EDITAR");

        btnEditar.addActionListener(new java.awt.event.ActionListener() {

            public void actionPerformed(java.awt.event.ActionEvent evt) {

                btnEditarActionPerformed(evt);

            }

        });

        getContentPane().add(btnEditar, new org.netbeans.lib.awtextra.AbsoluteConstraints(300, 380, 90, 40));

        btnEliminar.setBackground(new java.awt.Color(83, 216, 153));

        btnEliminar.setText("ELIMINAR");

        btnEliminar.addActionListener(new java.awt.event.ActionListener() {

            public void actionPerformed(java.awt.event.ActionEvent evt) {

                btnEliminarActionPerformed(evt);

            }

        });

        getContentPane().add(btnEliminar, new org.netbeans.lib.awtextra.AbsoluteConstraints(430, 380, 100, 40));

        jLabel11.setIcon(new javax.swing.ImageIcon(getClass().getResource("/procto/final2/Tabla de obesidad2.png"))); // NOI18N

        jLabel11.setPreferredSize(new java.awt.Dimension(200, 200));

        getContentPane().add(jLabel11, new org.netbeans.lib.awtextra.AbsoluteConstraints(330, 80, 460, 290));

        jLabel10.setIcon(new javax.swing.ImageIcon(getClass().getResource("/procto/final2/Clinica imagen.jpeg"))); // NOI18N

        getContentPane().add(jLabel10, new org.netbeans.lib.awtextra.AbsoluteConstraints(-110, 0, 1190, 760));

        pack();

    }// </editor-fold>

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

    }

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

        Crear();

    }

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

        Mostrar();

    }

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

       JOptionPane.showMessageDialog(rootPane, "¡GRACIAS POR CONSULTAR SU MASA CORPORAL CON NOSOTROS!"+"\n\nPASE UN FELIZ DIA" );

       System.exit(0);

    }

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

        // TODO add your handling code here:

    }

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

        // TODO add your handling code here:

    }

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

        Editar();

    }

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

        Eliminar();

    }

    private void tblReporteMouseClicked(java.awt.event.MouseEvent evt) {

    }

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

        // TODO add your handling code here:

    }

    private void jComboBoxComponentShown(java.awt.event.ComponentEvent evt) {

        // TODO add your handling code here:

    }

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

        String copiar = (String) jComboBox.getSelectedItem();

        txtCodigo.setText(copiar);

        Mostrar();

    }

    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(Frm_PacientesDatos.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);

        } catch (InstantiationException ex) {

            java.util.logging.Logger.getLogger(Frm_PacientesDatos.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);

        } catch (IllegalAccessException ex) {

            java.util.logging.Logger.getLogger(Frm_PacientesDatos.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);

        } catch (javax.swing.UnsupportedLookAndFeelException ex) {

            java.util.logging.Logger.getLogger(Frm_PacientesDatos.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);

        }

        //</editor-fold>

        //</editor-fold>

        /* Create and display the form */

        java.awt.EventQueue.invokeLater(new Runnable() {

            public void run() {

                new Frm_PacientesDatos().setVisible(true);

            }

        });

    }

    // Variables declaration - do not modify

    private javax.swing.JButton btnEditar;

    private javax.swing.JButton btnEliminar;

    private javax.swing.JButton btnGuardar;

    private javax.swing.JButton btnMostrarDatos;

    private javax.swing.JButton btnSalir;

    private javax.swing.JComboBox<String> jComboBox;

    private javax.swing.JLabel jLabel1;

    private javax.swing.JLabel jLabel10;

    private javax.swing.JLabel jLabel11;

    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.JLabel jLabel9;

    private javax.swing.JScrollPane jScrollPane1;

    private javax.swing.JTable tblReporte;

    private javax.swing.JTextField txtAltura;

    private javax.swing.JTextField txtApellido;

    private javax.swing.JTextField txtCodigo;

    private javax.swing.JTextField txtEdad;

    private javax.swing.JTextField txtImca;

    private javax.swing.JTextField txtImci;

    private javax.swing.JTextField txtNombre;

    private javax.swing.JTextField txtPeso;

    private javax.swing.JTextField txtTelefono;

    // End of variables declaration

}