searching in -files- Jtable [Archive]

simpatico

May 3rd, 2009, 08:45 AM

hey
i have this code for writing and reading from files in table( in java)\
plz help me to write a code that can search this file by giving a word that may be a maybe not exist in this file
plz make that code at different class

package jojo;
import java.io.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.DefaultTableModel;
import java.util.Vector;

public class NewJFrame extends javax.swing.JFrame {

/** Creates new form NewJFrame */
public NewJFrame() {
initComponents();
}

// <editor-fold defaultstate="collapsed" desc=" Generated Code ">
private void initComponents() {
jScrollPane1 = new javax.swing.JScrollPane();
Sup_list = new javax.swing.JTable();

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jScrollPane1.addInputMethodListener(new java.awt.event.InputMethodListener() {
public void caretPositionChanged(java.awt.event.InputMethodEvent evt) {
}
public void inputMethodTextChanged(java.awt.event.InputMethodEvent evt) {
jScrollPane1InputMethodTextChanged(evt);
}
});

Sup_list.setModel(new javax.swing.table.DefaultTableModel(
new Object [][] {
{null, null, null, null},
{null, null, null, null},
{null, null, null, null},
{null, null, null, null}
},
new String [] {
"Title 1", "Title 2", "Title 3", "Title 4"
}
));
jScrollPane1.setViewportView(Sup_list);

btnSaveData = new JButton("Save table data");
btnSaveData.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
try{
writer = new PrintWriter("file.txt", "UTF-8");
for (int i = 0; i < Sup_list.getRowCount(); i++) {
for (int j = 0; j < Sup_list.getColumnCount(); j++) {
Object value = Sup_list.getValueAt(i, j);
if (value != null)
writer.println(value.toString());
}
}
JOptionPane.showMessageDialog(NewJFrame.this, "Data saved");
} catch (IOException ioe) {
ioe.printStackTrace();
} finally {
if (writer != null)
writer.close();
}
}
});
btnLoadData = new JButton("Load data");
btnLoadData.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
try{
reader = new BufferedReader(new InputStreamReader(new FileInputStream("file.txt"), "UTF-8"));
String value;
int x = 0;
while ((value = reader.readLine()) != null) {
int row = x/Sup_list.getColumnCount();
int col = x - (row*Sup_list.getColumnCount());
Sup_list.setValueAt(value, row, col);
x++;
}
JOptionPane.showMessageDialog(NewJFrame.this, "Data loaded");
} catch (IOException ioe) {
ioe.printStackTrace();
} finally {
if (reader != null)
try {
reader.close();
} catch (IOException ioe) {
ioe.printStackTrace();
}
}
}
});
JPanel pnButtons = new JPanel();
pnButtons.add(btnSaveData);
pnButtons.add(btnLoadData);
getContentPane().add(jScrollPane1, java.awt.BorderLayout.CENTER);
getContentPane().add(pnButtons, java.awt.BorderLayout.SOUTH);

pack();
}// </editor-fold>

private void jScrollPane1InputMethodTextChanged(java.awt.event.InputMethodEvent evt) {
//TODO add your handling code here:
}

public static void main(String args[]) {
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new NewJFrame().setVisible(true);
}
});
}

// Variables declaration
private javax.swing.JTable Sup_list;
private javax.swing.JScrollPane jScrollPane1;
private JButton btnSaveData, btnLoadData;
private PrintWriter writer;
private BufferedReader reader;
// End of variables declaration

}