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#1 fsloke  Icon User is offline

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Do you have any simple sample Progress bar example?

Posted 16 March 2008 - 11:21 PM

Do you have any simple sample Progress bar example?

Progress bar for dowload file in local hard disc to other hard disc in diffrent partition...

Thank...
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#2 1lacca  Icon User is offline

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Re: Do you have any simple sample Progress bar example?

Posted 17 March 2008 - 02:40 AM

look at the bottom
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#3 fsloke  Icon User is offline

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Re: Do you have any simple sample Progress bar example?

Posted 17 March 2008 - 04:50 AM

This website I access so many time but I still can catch where should my receiving file code should put into....

Then the second problem is The percentage complete how can it be calculated?

Thank.
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#4 1lacca  Icon User is offline

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Re: Do you have any simple sample Progress bar example?

Posted 17 March 2008 - 05:37 AM

This is the time to ask for your code.
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#5 fsloke  Icon User is offline

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Re: Do you have any simple sample Progress bar example?

Posted 17 March 2008 - 11:33 PM

View Post1lacca, on 17 Mar, 2008 - 05:37 AM, said:

This is the time to ask for your code.


Yes sir,

This is the code for read a file from "/root/test.txt" and write out into a file called "/root/abc.txt". It tested runable without bug

Quote

package test;
import java.io.*;
public class Test1 {
public static void main(String [] args)
{

File file1 = new File("/root/test.txt");
try{

BufferedReader in = new BufferedReader(new FileReader(file1));
BufferedWriter out = new BufferedWriter(new FileWriter("/root/abc.txt"));

String line = in.readLine();
while(line !=null)
{
System.out.println(line);
out.write(line+"\n");
line = in.readLine();
}

in.close();
out.close();


}
catch(Exception e)
{

}
}
}


The code support put into which part? I choose the ProgressMonitorDemo code sample...

Here is the source from java.sun

Quote

package components;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.beans.*;
import java.util.Random;

public class ProgressMonitorDemo extends JPanel
implements ActionListener,
PropertyChangeListener {

private ProgressMonitor progressMonitor;
private JButton startButton;
private JTextArea taskOutput;
private Task task;

class Task extends SwingWorker<Void, Void> {
@Override
public Void doInBackground() {
Random random = new Random();
int progress = 0;
setProgress(0);
try {
Thread.sleep(1000);
while (progress < 100 && !isCancelled()) {
//Sleep for up to one second.
Thread.sleep(random.nextInt(1000));
//Make random progress.
progress += random.nextInt(10);
setProgress(Math.min(progress, 100));
}
} catch (InterruptedException ignore) {}
return null;
}

@Override
public void done() {
Toolkit.getDefaultToolkit().beep();
startButton.setEnabled(true);
progressMonitor.setProgress(0);
}
}

public ProgressMonitorDemo() {
super(new BorderLayout());

//Create the demo's UI.
startButton = new JButton("Start");
startButton.setActionCommand("start");
startButton.addActionListener(this);

taskOutput = new JTextArea(5, 20);
taskOutput.setMargin(new Insets(5,5,5,5));
taskOutput.setEditable(false);

add(startButton, BorderLayout.PAGE_START);
add(new JScrollPane(taskOutput), BorderLayout.CENTER);
setBorder(BorderFactory.createEmptyBorder(20, 20, 20, 20));

}


/**
* Invoked when the user presses the start button.
*/
public void actionPerformed(ActionEvent evt) {
progressMonitor = new ProgressMonitor(ProgressMonitorDemo.this,
"Running a Long Task",
"", 0, 100);
progressMonitor.setProgress(0);
task = new Task();
task.addPropertyChangeListener(this);
task.execute();
startButton.setEnabled(false);
}

/**
* Invoked when task's progress property changes.
*/
public void propertyChange(PropertyChangeEvent evt) {
if ("progress" == evt.getPropertyName() ) {
int progress = (Integer) evt.getNewValue();
progressMonitor.setProgress(progress);
String message =
String.format("Completed %d%%.\n", progress);
progressMonitor.setNote(message);
taskOutput.append(message);
if (progressMonitor.isCanceled() || task.isDone()) {
Toolkit.getDefaultToolkit().beep();
if (progressMonitor.isCanceled()) {
task.cancel(true);
taskOutput.append("Task canceled.\n");
} else {
taskOutput.append("Task completed.\n");
}
startButton.setEnabled(true);
}
}

}

/**
* 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("ProgressMonitorDemo");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

//Create and set up the content pane.
JComponent newContentPane = new ProgressMonitorDemo();
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();
}
});
}
}


Thank you....
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