Synchronized Block within Synchronized Method

Question

I\'m looking at some code in a third party library that contains a synchronized method, and within this method there is a synchronized block that locks on an instance variab

Answer 1

Consider this:

public void someMethod() {

    synchronized(bar) {
       // fully accessible before entering the other synchronized bar block
       // but not afterwards 
    }

}

Get it clearly, synchronizing only blocks if 2 blocks synchronize on the same object.