Question: Design a class named StopWatch. The class contains: The private data fields startTime and endTime with get methods. A constructor that initializes startTime

Design a class named StopWatch. The class contains:
■ The private data fields startTime and endTime with get methods.
■ A 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 stop watch in milliseconds.
Draw the UML diagram for the class, and then implement the class. Write a test program that measures the execution time of adding numbers from 1 to 1,000,000.

Step by Step Solution

★★★★★

3.44 Rating (163 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

create a class called StopWatch class StopWatch Declaration of instance variables private long startTime for starting time private long endTime for en... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

1013-C-S-O-S (751).docx

120 KBs Word File

Students Have Also Explored These Related Operating System Questions!

Design a class named QuadraticEquation for a quadratic equation ax2 + bx + x = 0. The class contains: The private data fields a, b, and c that represent three coefficients. A constructor for the...

If a class named Student contains a method setID() that takes an int argument, and you write an application in which you create an array of 20 Student objects named scholar, which of the following...

Suppose that a class named Bicycle contains a private nonstatic integer named height, a public nonstatic String named model, and a public static integer named wheels. Which of the following are legal...

1. Can you please write the following program in Python 3? Also, please write the UML and show all output(s)? Write the test program also. (Stopwatch) Design a class named StopWatch. The class...

Pyhton question Design a class named StopWatch. The class contains: The private data fields startTime and endTime with get methods. A constructor that initializes startTime with the current time. A...

Only Python !!!! 7.8 (Stopwatch) Design a class named Stopwatch. The class contains: The private data fields startTime and endTime with get methods. A constructor that initializes startTime with the...

Java coding Assignment 1 Submission due: Feb 20, 2020 Name: PS: 1. All questions need to answered. 2. Additional sheets may be attached if required 3. Questions have weightage assigned next to them...

In Python Programming: (The Time class) Design a class named Time. The class contains: The private data fields hour, minute, and second that represent a time. A constructor that constructs a Time...

1. Please write the following program in Python 3? Also, please write the ULM and test program. Please show all output. (The Time class) Design a class named Time. The class contains: The private...

What does Section 206 of SOX say about the independence of an audit firm when a member of the audit team goes to work for a client?

Make a sketch of the velocity of each string segment versus position for the pulse shown inFigure. v=2 cm/s 6 7 8 9 10 x, cm 1 2 3 4

Significance test for apartment rents. Recall Exercise 7.1 (page 419). Does this SRS give good reason to believe that the mean rent of all advertised one-bedroom apartments is greater than $550?...

What are the essential characteristics of syndi cates, joint stock compa nies, business trusts, and cooperatives?

Big Steve's, makers of swizzle sticks, is considering the purchase of a new plastic stamping machine. This investment requires an initial outlay of $90,000 and will generate net cash inflows of...

This question is a variant of the Sport Hotel example that was presented in class, in the class notes, and in the Real Option chapter. Suppose that in the example, the first year expenditures that...

Janina, Incorporated, has the following mutually exclusive projects. Year Project A Project B 0 $ 18,000 $ 21,000 1 11,000 12,000 2 7,500 8,500 3 2,700 7,500 a-1. Calculate the payback period for...