Are these statements equal ?(java.nio)

Question

I am trying to understand java.nio.I am making simple echo server. Suppose we got keyCycler - which is iterator and then:

SelectionKey key = (SelectionKey)keyCycler.next();
//Retrieve set of ready ops for
//this key (as a bit pattern)...
int keyOps = key.readyOps();
if ((keyOps & SelectionKey.OP_ACCEPT)== SelectionKey.OP_ACCEPT)

I want to know wheather this

if ((keyOps & SelectionKey.OP_ACCEPT)== SelectionKey.OP_ACCEPT)

always equal to this

    if(key.isAcceptable())

if no, in which cases they are different. Probably I got the whole thing wrong..

Answer 1

Compare to the source code :

return (readyOps() & OP_CONNECT) != 0;

Since the bitmask of which OP_CONNECT has mutually-exclusive bits, this is identical to your code.