What does >>> mean?

Heyo,
 
I have the following code from the IBM Info Center that is from a Java
program creating a keyed data queue.  I thought the >>> characters were
typos, which I frequently find in the IBM examples, but it is not! - this
code compiles.  So I am curious as to what >>> means as google didn't seem
to like that as a search term (i.e. "java >>>").  Anybody?
 
        byte[] key0 = new byte[4];
        key0[0] = 0;
        key0[1] = 0;
        key0[2] = 0;
        key0[3] = 0;
 
        byte[] key50 = new byte[4];
        key50[0] = (byte) (50 >>> 24);
        key50[1] = (byte) (50 >>> 16);
        key50[2] = (byte) (50 >>> 8);
        key50[3] = (byte) (50);
 
        byte[] key100 = new byte[4];
        key100[0] = (byte) (100 >>> 24);
        key100[1] = (byte) (100 >>> 16);
        key100[2] = (byte) (100 >>> 8);
        key100[3] = (byte) (100);
 
 <mailto:aaron@xxxxxxxxxxxxxxx> 
Aaron Bartell
http://mowyourlawn.com