Question: Design a class named StopWatch. The class contains: Private data fields startTime and endTime with getter methods. A no-arg constructor that initializes startTime

Design a class named StopWatch. The class contains:
■■ Private data fields startTime and endTime with getter methods.
■■ A no-arg constructor that initializes startTime with the current time.
■■ A method named start() that resets the startTime to the current time.
■■ A method named stop() that sets the endTime to the current time.
■■ A method named getElapsedTime() that returns the elapsed time for the stopwatch in milliseconds.
Draw the UML diagram for the class then implement the class. Write a test program that measures the execution time of sorting 100,000 numbers using selection sort.

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