JAVA:

We will implement a StringPair class that extends Pair and implements the Comparable> interface. (Notice the nesting of generic types !)

Implement the method

public int compareTo(Pair p) { }

The method should to a lexicographic comparison of the two pairs and return a different answer depending on whether the first pair (i.e. this) is lexicographically less than , equal or greater than the second pair (i.e. p).

For example ("abc", "zzz") would be less than ("abd", "aaa") but greater than ("abc", "zza").

Look at the Java documentation for Comparable to see what the return values should be in each case.