Design a program named RouteExist.java and implement the following method:

public static boolean(String filename, String from, String to)

The first parameter: filename contains multiple lines and each line represents a route(bi-direction) between two locations. For example,

Manassas NOVA means a routes exists between Manassas and NOVA

This method is going to check if a route exists between from (the second parameter) and to (the third parameter), return true if a route exists, otherwise return false.

Sample data file:

A B

C B

E C

AA B

AA G

A K

K C

K P

P M

M X

M Y

H Q

K Q