You were hired to implement usingJava a Train system simulation, designed by a developer who suddenly left the team. You are provided with the design specification document and unit test suite. You are to assume that design description is correct for what each class and method is supposed to do and so are the JUnit tests and your Java code is supposed to match them. Required:
You must implement the system using the given design and make sure that all the unit tests pass against your code. Your program must implement the complete design to include all the classes, methods, constructors, constants, and attributes, and the input and output specification exactly. You cannot redesign or change the system.