How create progress bar while file transferring

Question

import java.awt.Component;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.I         


        

Answer 1

I can think of two ways.

Swing Worker

Start by wrapping you copy code into a SwingWorker, using the setProgress method to update the progress and a property change listener to monitor changes to the progress property.

When the progress property changes, you would then update the UI.

This solution will require you to supply you own UI

Progress Monitor

Use a ProgressMonitorInputStream, which comes with it's own UI.

InputStream in = new BufferedInputStream(
    new ProgressMonitorInputStream(
        parentComponent,
        "Reading " + fileName,
        new FileInputStream(fileName)));

(Example stolen from Java Docs)