I would like to know how to make a JTable
popular using a pre-existing text file.
IhaveaquerytableandIwanttheusertoputtheaccountnumber,itshowsthedatainJtable
andalsohowcanIdothefilteringbytheagencynumber?
Thedatafrommytextfile: link
Here as they are respectively represented:
agencia;conta;data de lançamento; valor; operação.
My class ArquivoTextoProvider
which reads and writes data:
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
public class ArquivoTextoProvider {
//Recebe como parãmetro o path do arquivo e o texto a ser gravado
public static void gravar(String path,String texto){
File arq = new File(path);
try {
FileWriter fw = new FileWriter(arq,true);
BufferedWriter bw = new BufferedWriter(fw);
bw.write(texto+"\n");
bw.close();
fw.close();
} catch (IOException e) {
}
}
//Recebe como parãmetro o path do arquivo a ser lido
//Retorna um ArrayList com todas as linhas gravadas no arquivo
public static ArrayList<String> carregarLinhas(String path){
File arq = new File(path);
try {
FileReader fr = new FileReader(arq);
BufferedReader br = new BufferedReader(fr);
String linha=null;
ArrayList<String> lista = new ArrayList<String>();
while ((linha = br.readLine()) != null) {
lista.add(linha);
}
br.close();
fr.close();
return lista;
}catch (Exception ex){
return null;
}
}
//Recebe como parametro o simbolo separador e uma linha
//e retorna um vetor de String preenchido com todos os dados separados pelo separado
public static String[] lerDados(String separador, String linha){
return linha.split(separador);
}
}
Class telaConsulta
:
package view;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class TelaConsulta extends javax.swing.JFrame {
/**
* Creates new form TelaLogin
*/
public TelaConsulta() {
initComponents();
btConsultar.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
//pesquisar a situação
}
} );
}
/**
* 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">//GEN-BEGIN:initComponents
private void initComponents() {
jLabel4 = new javax.swing.JLabel();
edConta = new javax.swing.JTextField();
jLabel1 = new javax.swing.JLabel();
edAgencia = new javax.swing.JTextField();
jLabel3 = new javax.swing.JLabel();
edData1 = new javax.swing.JTextField();
jLabel2 = new javax.swing.JLabel();
edData2 = new javax.swing.JTextField();
jLabel5 = new javax.swing.JLabel();
cbMes = new javax.swing.JComboBox();
btConsultar = new javax.swing.JButton();
jScrollPane1 = new javax.swing.JScrollPane();
jTable1 = new javax.swing.JTable();
jLabel6 = new javax.swing.JLabel();
edSaldo = new javax.swing.JTextField();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setTitle("Consulta");
jLabel4.setText("Conta:");
edConta.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
edContaActionPerformed(evt);
}
});
jLabel1.setText("Agencia");
edAgencia.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
edAgenciaActionPerformed(evt);
}
});
jLabel3.setText("Data 1:");
jLabel2.setText("Data 2:");
edData2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
edData2ActionPerformed(evt);
}
});
jLabel5.setText("Mes");
cbMes.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12" }));
btConsultar.setText("Pesquisar");
btConsultar.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
btConsultarActionPerformed(evt);
}
});
jTable1.setModel(new javax.swing.table.DefaultTableModel(
new Object [][] {
{null, null, null}
},
new String [] {
"Data", "Valor", "Operacao"
}
) {
Class[] types = new Class [] {
java.lang.String.class, java.lang.String.class, java.lang.String.class
};
boolean[] canEdit = new boolean [] {
false, false, false
};
public Class getColumnClass(int columnIndex) {
return types [columnIndex];
}
public boolean isCellEditable(int rowIndex, int columnIndex) {
return canEdit [columnIndex];
}
});
jScrollPane1.setViewportView(jTable1);
jLabel6.setText("Saldo: R$");
edSaldo.setEditable(false);
edSaldo.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
edSaldoActionPerformed(evt);
}
});
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jScrollPane1, javax.swing.GroupLayout.Alignment.TRAILING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jLabel6)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(edSaldo, javax.swing.GroupLayout.PREFERRED_SIZE, 113, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jLabel4)
.addGap(54, 54, 54)
.addComponent(jLabel1)
.addGap(75, 75, 75)
.addComponent(jLabel3))
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(btConsultar, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(edConta))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(edAgencia, javax.swing.GroupLayout.PREFERRED_SIZE, 108, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(edData1, javax.swing.GroupLayout.PREFERRED_SIZE, 127, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addGap(3, 3, 3)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(edData2, javax.swing.GroupLayout.PREFERRED_SIZE, 150, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(cbMes, javax.swing.GroupLayout.PREFERRED_SIZE, 61, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(layout.createSequentialGroup()
.addComponent(jLabel2)
.addGap(114, 114, 114)
.addComponent(jLabel5)))))
.addGap(0, 0, Short.MAX_VALUE)))
.addContainerGap())
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel4)
.addComponent(jLabel1)
.addComponent(jLabel3)
.addComponent(jLabel2)
.addComponent(jLabel5))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(edConta, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(edAgencia, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(edData1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(edData2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(cbMes, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(btConsultar)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 253, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel6)
.addComponent(edSaldo, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addContainerGap(14, Short.MAX_VALUE))
);
pack();
}// </editor-fold>//GEN-END:initComponents
private void edContaActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_edContaActionPerformed
// TODO add your handling code here:
}//GEN-LAST:event_edContaActionPerformed
private void edAgenciaActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_edAgenciaActionPerformed
// TODO add your handling code here:
}//GEN-LAST:event_edAgenciaActionPerformed
private void edData2ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_edData2ActionPerformed
// TODO add your handling code here:
}//GEN-LAST:event_edData2ActionPerformed
private void btConsultarActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btConsultarActionPerformed
// TODO add your handling code here:
}//GEN-LAST:event_btConsultarActionPerformed
private void edSaldoActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_edSaldoActionPerformed
// TODO add your handling code here:
}//GEN-LAST:event_edSaldoActionPerformed
/**
* @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(TelaConsulta.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(TelaConsulta.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(TelaConsulta.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(TelaConsulta.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 TelaConsulta().setVisible(true);
}
});
}
// Variables declaration - do not modify//GEN-BEGIN:variables
private javax.swing.JButton btConsultar;
private javax.swing.JComboBox cbMes;
private javax.swing.JTextField edAgencia;
private javax.swing.JTextField edConta;
private javax.swing.JTextField edData1;
private javax.swing.JTextField edData2;
private javax.swing.JTextField edSaldo;
private javax.swing.JLabel jLabel1;
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.JScrollPane jScrollPane1;
private javax.swing.JTable jTable1;
// End of variables declaration//GEN-END:variables
}