BetaHard1

Class Name: BetaHard1
Method Name: solve
parameters:  String, String
returns: int

Create a class BetaHard1 containing the method solve. This method will take two
Strings as inputs and return the number of characters in the second String that
are contained in the first string, in a one-to-one relationship.  That is, if a
character is repeated in the second string, it must be repeated in the first
string to count more than once.

Here is the method signature:
public int solve(String input1, String input2);

BOth Strings will have fewer than 50 characters.

Note:
-The method is case sensitive.  A is a different character than a.

Examples:
("java", "abava") -> 3  (two of the (a)s and the (v))
("TopCoder", "code guru") -> 4
("foobar", "sing") -> 0