readline Error

Hi sir, please helpme with my code.

Mycode does not work. The readLine () method seems to loose the first character of the string input from command line after the the first call to it. When Ienter the text abcd, the firt time it prints it correctly, every other time the first character is missing. Why is this.

class TestAdvt
{
public static void main (String[] args)
{
boolean done=false;
while (!done)
{
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String str = null;

try
{
System.out.println ("Please enter the advertisement message to be displayed (enter 'n' to exit)");

str = br.readLine(); // Read input from command

if (!str.equalsIgnoreCase("n"))
{
System.out.println ("str1 = " + str);
Thread advt = new Thread(new Advertisement(str));

advt.start();
System.in.read(); // wait for input <ENTER>
advt.interrupt();

}
else
{
System.out.println ("str2 = " + str);
done = true;
br.close();
}
}
catch (IOException e)
{
System.out.println("IOException caught: " + e.getMessage());
}


}

} // end of main()
}
// --------End: TestAdvt.java ------------


class Advertisement extends Thread
{
private String message;

Advertisement (String message) { this.message=message;}

public void run()
{
while (!message.equals(""))
{
try
{
System.out.print(message+".. ");
Thread.sleep(1000);

}
catch (InterruptedException e)
{
this.message="";
break;
}
}
} // end of 'run()' ..


}

// --------End: Advertisement.java ------------