Study the following Java code:

Node n$1=$ new Node$(2)$;

int i;

for $($i$=1$; i$<=5$; i$++)$

$$ n$1=$ new Node$(2*$i$,$ n$1)$;

n$1.$getNext$().$getNext$().$setData$($i$)$;

for $($i$=1$; i$<=2$; i$++)$

$$ n$1=$ n$1.$getNext$()$;

When the above code executes the result is a sequence of linked nodes. The number of nodes in the sequence is

$.$ The value in the first node is

and the value in the last node is

$.$