1.Develop a class named FlightTester that has one main method.

Declare four variables flight1, flight2, flight3, and flight4 of type Flight, i.e., they can hold references to Flight objects.

Create four Flight objects as per the above examples and assign the references to flight1, flight2, flight3, and flight4, respectively.

Check if flight3 and flight4 are the same using the equals method and print either the message that says "Same flight" or "Not same flight"