nbaq :
I have a file that's generated from another program, and I'm trying to create a different program that will create a JTable with files in it. I've already tried using StackOverflow tutorials to fix it, but I can't figure out what's wrong. I used a tutorial to help me create the JTable to begin with, so I can't even figure out where it went wrong.
This is the content of the file
EDITED WITH CORRECT FILE INPUT
5|10.540000| 12.181217| 4482.000000| 109.155482| 12.020000| 8.563800| 4834.000000| 56.715967|
10|29.480000| 8.425604| 50772.000000| 563.527552| 33.000000| 5.844637| 4310.000000| 111.075842|
50|259.120000| 2.885537| 21648.000000| 114.723483| 267.920000| 1.648783| 17158.000000| 56.444652|
100|624.700000| 2.039771| 13300.000000| 21.205140| 633.140000| 1.202862| 15864.000000| 36.446637|
250|1887.700000| 1.377592| 41134.000000| 22.781148| 1896.880000| 0.693851| 41924.000000| 45.683431|
500|4291.800000| 0.836839| 191150.000000| 79.367962| 4294.560000| 0.457202| 80876.000000| 86.643983|
1000|9598.000000| 0.436951| 244238.000000| 149.945987| 9585.120000| 0.266139| 219474.000000| 184.652819|
10000|129582.240000| 0.129851| 1219346.000000| 9.823825| 129214.380000| 0.053029| 1410626.000000| 6.414845|
50000|764303.200000| 0.042775| 8392266.000000| 29.384328| 762430.500000| 0.024571| 8935228.000000| 14.952530|
100000|1628728.920000| 0.029737| 18302506.000000| 18.204143| 1624946.720000| 0.016495| 22086830.000000| 23.866814|
And this is the part of the code that fills the values:
private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
String filePath = "C:\\Users\\hafiz\\OneDrive\\Documents\\test\\file.txt";
File file = new File(filePath);
try {
BufferedReader br = new BufferedReader(new FileReader(file));
String[] columnNames = {
"Size", "Iterative Avg Count", "Iterative Coef Count",
"Iterative Avg Time", "Iterative Coef Time", "Recurive Avg Count",
"Recurive Coef Count", "Recurive Avg Time", "Recurive Coef Time"
};
DefaultTableModel model = (DefaultTableModel) jTable1.getModel();
model.setColumnIdentifiers(columnNames);
Object[] tableLines = br.lines().toArray();
for (int i = 0; i < tableLines.length; i++) {
String line = tableLines[i].toString().trim();
String[] dataRow = line.split("|");
model.addRow(dataRow);
}
} catch (FileNotFoundException ex) {
Logger.getLogger(Table.class.getName()).log(Level.SEVERE, null, ex);
}
}
This is the whole code if it comes of any use:
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.table.DefaultTableModel;
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
/**
*
* @author hafiz
*/
public class Table extends javax.swing.JFrame {
/**
* Creates new form Table
*/
public Table() {
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.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jScrollPane1 = new javax.swing.JScrollPane();
jTable1 = new javax.swing.JTable();
jButton2 = new javax.swing.JButton();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jTable1.setModel(new javax.swing.table.DefaultTableModel(
new Object [][] {
},
new String [] {
}
));
jScrollPane1.setViewportView(jTable1);
jButton2.setText("Import Text");
jButton2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton2ActionPerformed(evt);
}
});
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jScrollPane1, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, 745, Short.MAX_VALUE)
.addGroup(layout.createSequentialGroup()
.addGap(331, 331, 331)
.addComponent(jButton2)
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addComponent(jButton2)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 8, Short.MAX_VALUE)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 269, javax.swing.GroupLayout.PREFERRED_SIZE))
);
pack();
}// </editor-fold>
private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
String filePath = "C:\\Users\\hafiz\\OneDrive\\Documents\\test\\file.txt";
File file = new File(filePath);
try {
BufferedReader br = new BufferedReader(new FileReader(file));
String[] columnNames = {
"Size", "Iterative Avg Count", "Iterative Coef Count",
"Iterative Avg Time", "Iterative Coef Time", "Recurive Avg Count",
"Recurive Coef Count", "Recurive Avg Time", "Recurive Coef Time"
};
DefaultTableModel model = (DefaultTableModel) jTable1.getModel();
model.setColumnIdentifiers(columnNames);
Object[] tableLines = br.lines().toArray();
for (int i = 0; i < tableLines.length; i++) {
String line = tableLines[i].toString().trim();
String[] dataRow = line.split("|");
model.addRow(dataRow);
}
} catch (FileNotFoundException ex) {
Logger.getLogger(Table.class.getName()).log(Level.SEVERE, null, ex);
}
}
/**
* @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(Table.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(Table.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(Table.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(Table.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 Table().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JButton jButton2;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JTable jTable1;
// End of variables declaration
}
The first column (which is size) is empty for value records.
This is how the output looks right now
Lajos Arpad :
You have two main issues:
Your input of |10.140000| 13.084819| 4392.000000| 82.699923| 11.900000| 10.118987| 5166.000000| 59.443868| starts with your separator, so the size column will be empty, because it will contain the substring left from the first | instance
Your input has 8 values, but you have 9 columns, so at least a column will have no values.
EDIT
You also need to escape the | character, so you will need to do something like
String[] dataRow = line.split("\\|");