Fluent Interface Returning the Same Type

Complete the PathBuilder class so that it implements the IPathBuilder interface. Add must append "/" followed by part to the stored path and then return the same builder (this) so calls can be chained. Build returns the finished path string. Do NOT write a Main method.

The tester chains calls like b.Add("home").Add("user").Add("docs").Build(), so the program prints the output shown in Expected Output.

Expected Output:

/home/user/docs↵

= newline. The output ends with a newline — print one after the last line.

Hints2 available

Topics:

Interfaces

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