GetURL (java)

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;

public class GetURL {
    private int mTotalLength;
    private int mCurrentLength;
    URL mURL;
    URLConnection mURLConnection;

    public GetURL(String strURL) {
        try {
            mURL = new URL(strURL);
            mURLConnection = mURL.openConnection();
        } catch (Exception e) {  
            e.printStackTrace();
        }
    }    

    public int getTotalLen() { return mTotalLength; }
    public int getCurrentLen() { return mCurrentLength;}
    private void initURLConnection() {
        mTotalLength = mURLConnection.getContentLength();
        mCurrentLength = 0;
    }

    private void addCurrentLen(int len) {
        mCurrentLength += len;
    }

    public InputStream getInputStream() {
        InputStream in;
        try {
            in = mURLConnection.getInputStream();
        } catch (IOException e) {
            e.printStackTrace();
            return null;
        }
        return in;
    }
    public static void main(String[] args) {
        if (args.length != 1) {
            System.err.println("argument count error");
            return;
        }
        GetURL url = new GetURL(args[0]);
        Runnable downloadThread = new Download(url);
        byte[] buffer = new byte[4096];

        url.initURLConnection();
        new Thread(downloadThread).start();
        try {
            while (true) {
                InputStream in = url.getInputStream();
                int count = in.read(buffer);
                if (count < 0)
                    break;
                url.addCurrentLen(count);
                String strDebug = new String(buffer, 0, count);
                System.out.print(strDebug);

                String status = ((Download)downloadThread).getStatus();
                if (status.equals("OK")) {
                    break;
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

}

class Download implements Runnable {
    GetURL url;
    String status;

    public Download(GetURL url) {
        this.url = url;
        status = "RUNNING";
    }

    public void run() {
        int total = url.getTotalLen();
        try {
            while (true) {
                int current = url.getCurrentLen();
                System.out.print("\r" + current + "/" + total);
                Thread.sleep(500);
                if (current >= total) {
                    status = "OK";
                    break;
                }
            } // ~while                                                                                                                                                 
            System.out.println();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }

    public String getStatus() {
        return status;
    }
}