Can someone please explain me the code for the hashmap get(key) method?

Can someone please explain me the code for the hashmap get(key) method?

Inside the get(Object key) method of Java , there is a piece of code which
I am not able to understand.
I know how the get(key) method works even in case when hashcode is same
for two object.
But the below piece of code I am unable to understand.
for (Entry<K,V> e = table[indexFor(hash, table.length)];
e != null;
e = e.next) {
Object k;
if (e.hash == hash && ((k = e.key) == key || key.equals(k)))
return e.value;
}
Can someone explain. Thanks