1. Mark which topics are covered in the chapter that you were supposed to read for this week:
2. For a simple class Node
public class Node{
public String info;
public Node link;
}
that describes a linked list of strings, write a method
for searching whether a string "CS" is in this list.
For extra credit: write a recursive method for
performing this search; main idea: check whether the first element
of this list is "CS", if not, search the tail.