Convert from integer to array of bytes

[Rob Chung]

Hi,
I am trying to convert any integer into 4 bytes. The following code continues to give me ffffff80 in byte 3. Please help. Thanks in advance!
byte [] aa = { 0, 0, 0, 0 };
int bb = 128;
aa[0] = (byte) ((bb >>> 24) & 0xFF);
aa[1] = (byte) ((bb >>> 16) & 0xFF);
aa[2] = (byte) ((bb >>> 8) & 0xFF);
aa[3] = (byte) ((bb >>> 0) & 0xFF);

[Rob Chung]

This actually works.