Someone

package download;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.util.LinkedList;import java.util.List;import java.util.Queue;import java.util.concurrent.Executor;import java.util.concurrent.Executors;public class DowloaderTest {	private static final int numberOfDownloads = 2;		public void execute() {		Executor executor = Executors.newFixedThreadPool (DowloaderTest.numberOfDownloads);				final List<Download> downloads = new LinkedList<Download>();				for (int i = 0; i < 99; ++i) {			Download d = new Download(i);			executor.execute(d);			downloads.add(d);		}		Runtime.getRuntime().addShutdownHook(new Thread() {            public void run() {                for (Download d: downloads) {                	d.shutDown();                }            }        });		//System.exit(0);	}	/**	 * @param args	 */	public static void main(String[] args) {		DowloaderTest d = new DowloaderTest();				d.execute();	}	private class Download implements Runnable {		private Process proc;				private final int number;				public Download(int number) {			this.number= number;		}		@Override		public void run() {			System.out.println("starting: " + number);			long j = 0;					try {				Thread.sleep((int)( 10000 * Math.random() + 10000));			} catch (InterruptedException e) {				// TODO Auto-generated catch block				e.printStackTrace();			}//			for (int i = 0; i < 9999; ++i) {//				j += 4 * i * this.number;//			}			if (this.number % 5 == 0) {				//System.out.println("---------------");			}			System.out.println("finished: " + number);		}		public void shutDown() {			if (this.proc != null) {				this.proc.destroy();			}		}	}	}