5.3 Practice

Chapter Table of Contents

Section Table of Contents

Chapter Table of Contents Section Table of Contents Practice Circle Area Average Change

Practice

Circle Area

Create a program called CircleArea which prompts the user to enter the radius of a circle. Compute the area of the circle and display the result.

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Use Math.PI for a more accurate value of pi.

💻 Template code

✅ Solution code

Average

Create a program called Average where the user enters 3 numbers. (These numbers could be decimals or integers.) Compute and display the average of the 3 numbers.

💻 Template code

✅ Solution code

Change

The user enters an amount of money in standard format (for example, 11.56). Print the number of dollars, quarters, dimes, nickels, and pennies that makes up the given amount of money.

Example output:


Enter an amount of money (omit the $): 11.56
Your amount of $11.56 consists of
		11 dollars
		2 quarters
		0 dimes
		1 nickels
		1 pennies

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Hint 1: Convert the amount of money to cents.

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Hint 2: You might find the modulus operator to be useful.

💻 Template code

✅ Solution code

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This problem is challenging, but remember that you have everything you need to do it. If you get stuck, don’t worry! Keep working at it. If you still are having trouble, always feel free to reach out to your instructor.

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5.2 Different Types of Input

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Chapter 5 Quiz

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