[Solved] OOP CWK1

For this assignment you are to implement a computer program which performs some simple calculations and prints the results to the screen. There are three parts to this assignment. In the first part, you will write a function that calculates the volume of a sphere with a given radius. The second part converts an amount of money in dollars into its largest note and coin constituents. Finally, the last part gets the computer to add two times together, which are specified in the 24hr clock notation. Your finished program (or programs), when run, should execute each of the three menus, if you are unable to complete a menu then credit will still be given for the work actually completed. When marking I will be looking at how your program is written as well as the output it produces this, of course, means that you wont be able to cheat. There is no single correct solution for this assignment; any program that correctly calculates the answers will be given a pass mark. To achieve higher grades, your program should make appropriate use of variables and functions in your solution. In particular, to obtain the top grades it is necessary to design your own functions and make correct use of them.

1. Volume of a sphere menu

Write a function that calculates the volume of a sphere, using the equation: 4/3Pi(r)cubed. You should write a function volumeForRadius() that takes a double as a parameter and returns a double containing the result of calculating the above equation. Your program should print 4 lines (one per radius), in the following format:

5/5 – (1 vote)

The volume of a sphere with radius 5cm is 523.598775

2. Smallest money menu

Write a function that converts a monetary value into its largest note and coin constituents. The denominations considered here will be $20, $10, and $5 notes, and $1 coins. For example, $47 would break down into 2$20, 1$5, and 2$1. You will need to make sure that only integer values of the different denominations are printed. For example, the function should print 4 lines (one per input value), in the following format: $77 consists of 3 $20 notes, 1 $10 note, 1 $5 note, and 2 $1 coins.In this case, it is perfectly acceptable to print out zeroes if no, say, $5 notes are needed. However, if you are feeling adventurous you might want to use an if statement to remove these and to make the code print note, notes, coin and coins as appropriate. It is best to create a function to handle the conversion. You will not be able to return three values from the function, so you will need to call cout from within the function. Your program should calculate the break down of currency for the four input values in this table: Monetary Value 20 79 10 42 Note: The $ can be a pain to print out correctly particular if you move your code from computer to computer. You will not be penalized if the $ sign doesnt print correctly. Hint: This program requires you to use integer division operator and its modulus (%, i.e. the remainder) operator.

3. Adding Times

This section requires you to further practise integer arithmetic, in particular, modulus operator. In this section, you should add two times together that are encoded as integers. The first integer value represents a time of day on a 24 hour clock, so that the value 1055 represents 5 minutes to 11 in the morning, 1245 represents quarter to one in the afternoon, and 2005 represents 5 minutes past 8 in the evening. To obtain the one integer value we have multiplied the hours by 100 and then added the minutes to it. The second integer represents a time duration in a similar way, so that 345 represents three hours and 45 minutes. We wish to find the time at which an event starting at the time given by the first number, and lasting for the duration given by the second number, will end. Thus the duration is tobe added to the first time, and the result printed out in the same notation. Thus if the input is 1245 345 the output should be 1600 which is the time 3 hours and 45 minutes after 12.45. Note: There are a few extra marks for spotting that a start time of 2300 with a duration of 200, gives an end time of 100, not 2500. But dont worry if you cant get that working. The programs output should be in the format: Start time is 1245. Duration is 345. End time is 1600 and should calculate results for the following values: Start Time 1045 800 2300 Duration 345 435 300 Hint: Again, this program requires you to use integer division and remainder (modulus) operator. It may help if you split the integers into hours and minutes first, then perform the calculations before combining them back into one value. Submission Guideline: Upload your project in Moodle. Save your work in CPP using the format. The extension of the file MUST BE in the Format OOP_CWK1_Lastname_Firstname.cpp