can not read .txt file raw data into java table...

package readtext;

import java.io.*;// For input & output classes

import java.util.*;// For the Date class

import javax.swing.*;

import java.awt.*;

import java.awt.event.MouseAdapter;

import java.awt.event.MouseEvent;

public class input extends JPanel {

private boolean DEBUG = false;

public input() {

super(new GridLayout(1,0));

String[] columnNames = {"First Name",

"Last Name",

"Sport",

"# of Years",

"Vegetarian"};

Object[][] data = {

{"Mary", "Campione",

"Snowboarding", new Integer(5), new Boolean(false)},

{"Alison", "Huml",

"Rowing", new Integer(3), new Boolean(true)},

{"Kathy", "Walrath",

"Knitting", new Integer(2), new Boolean(false)},

{"Sharon", "Zakhour",

"Speed reading", new Integer(20), new Boolean(true)},

{"Philip", "Milne",

"Pool", new Integer(10), new Boolean(false)}

};

final JTable table = new JTable(data, columnNames);

table.setPreferredScrollableViewportSize(new Dimension(500, 70));

if (DEBUG) {

table.addMouseListener(new MouseAdapter() {

public void mouseClicked(MouseEvent e) {

printDebugData(table);

}

});

}

//Create the scroll pane and add the table to it.

JScrollPane scrollPane = new JScrollPane(table);

//Add the scroll pane to this panel.

add(scrollPane);

}

private void printDebugData(JTable table) {

int numRows = table.getRowCount();

int numCols = table.getColumnCount();

javax.swing.table.TableModel model = table.getModel();

System.out.println("Value of data: ");

for (int i=0; i < numRows; i++) {

System.out.print("row " + i + ":");

for (int j=0; j < numCols; j++) {

System.out.print(" " + model.getValueAt(i, j));

}

System.out.println();

}

System.out.println("--");

}

String filePath = "C:/Documents and Settings/seng/Desktop/testfile/VehicleNode.txt";

public static String[] readTextFile( String filePath )

throws FileNotFoundException

{

if (filePath != null)

{

try

{

BufferedReader reader = new BufferedReader(

new FileReader( filePath ));

Vector lines = new Vector();

String aLine = reader.readLine();

while ( aLine != null )

{

lines.addElement( aLine );

aLine = reader.readLine();

}

String[] lineArray = new String[lines.size()];

lines.copyInto( lineArray );

return lineArray;

}

catch ( IOException exc )

{

exc.printStackTrace();

}

}

return new String[0];

}

/**

* Create the GUI and show it. For thread safety,

* this method should be invoked from the

* event-dispatching thread.

*/

private static void createAndShowGUI() {

//Create and set up the window.

JFrame frame = new JFrame("SimpleTableDemo");

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

//Create and set up the content pane.

input newContentPane = new input();

newContentPane.setOpaque(true); //content panes must be opaque

frame.setContentPane(newContentPane);

//Display the window.

frame.pack();

frame.setVisible(true);

}

public static void main(String[] args)

{

//Schedule a job for the event-dispatching thread:

//creating and showing this application's GUI.

javax.swing.SwingUtilities.invokeLater(new Runnable() {

public void run() {

createAndShowGUI();

}

});

}

}

now i have try to make a a class for read text

String filePath = "C:/Documents and Settings/seng/Desktop/testfile/VehicleNode.txt";

public static String[] readTextFile( String filePath )

throws FileNotFoundException

{

if (filePath != null)

{

try

{

BufferedReader reader = new BufferedReader(

new FileReader( filePath ));

Vector lines = new Vector();

String aLine = reader.readLine();

while ( aLine != null )

{

lines.addElement( aLine );

aLine = reader.readLine();

}

String[] lineArray = new String[lines.size()];

lines.copyInto( lineArray );

return lineArray;

}

catch ( IOException exc )

{

exc.printStackTrace();

}

}

return new String[0];

}

but how can i bring the lineArray

into object[ ] [ ] data

Message was edited by:

wilfrid100

wilfrid100a at 2007-7-14 20:49:06 >

public static String[] readTextFile( String filePath )

throws FileNotFoundException

{

try

{

BufferedReader in = new BufferedReader(

new FileReader("C:/Documents and Settings/seng/Desktop/testfile/assignment_matrix.txt"));

String text;

while((text = in.readLine()) != null)

{

String[] out = text.split(" "); // Separated by "whitespace"

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

{

int a = Integer.parseInt(out[i]);

}

}

}

catch ( IOException exc )

{

exc.printStackTrace();

}

return new String[0];

}

i have try to modify the previous coding, but now i'm not very understand about Boolean stepBoolean.getBoolean

why i have to use the Boolean in here?

is it i use Boolean to detecting " null " string?

Message was edited by:

wilfrid100

wilfrid100a at 2007-7-14 20:49:06 >