This is in java. thank you

(1) Assume some Node class with info \& link fields. Complete this methed in class List that returns a reference to the node containing the data item in the argument findthis. Assume that find This is in the list public class List \{protected Node head; protected int size; qublic Node find (char Find This) (2) Given the following linked list where each node has a data \& link field \& uses the pointers bl, p2,p3,p Draw a similar diagram to show how this confiquration changes when the given segment of code executes. (Assume each part is independent from the other, a) p3=p2; p4.link=p2,linkj b) p3. link=p2link; p2. link=p1link; p4. link=p3.link; c) pa,link=p3; plo link. linkepl; pl. link, link=pa.link; p4= nulli p2=p4