Starting Out with Python (4th Edition)
4th Edition
ISBN: 9780134444321
Author: Tony Gaddis
Publisher: PEARSON
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Chapter 4, Problem 2AW
Write a while loop that asks the user to enter two numbers. The numbers should be added and the sum displayed. The loop should ask the user if he or she wishes to perform the operation again. If so, the loop should repeat, otherwise it should terminate.
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8. Write a while loop that asks the user to enter two numbers. The numbers should be
added and the sum displayed. The user should be asked if he or she wishes to perform
the operation again. If so, the loop should repeat; otherwise it should terminate.
Write a while loop that asks the user to enter two numbers. The numbers should be addedand the sum displayed. The user should be asked if he or she wishes to perform the operation again. If so, the loop should repeat; otherwise it should terminate.
Create a class name AddAgain for do-while loop that asks the user to enter two The numbers should be added and the sum displayed. The loop should ask the user whether he or she wishes to perform the operation again. If so, the loop should repeat; otherwise it should terminate.
Chapter 4 Solutions
Starting Out with Python (4th Edition)
Ch. 4.1 - What is a repetition structure?Ch. 4.1 - What is a condition-controlled loop?Ch. 4.1 - What is a count-controlled loop?Ch. 4.2 - What is a loop iteration?Ch. 4.2 - Does the while loop test its condition before or...Ch. 4.2 - How many times will 'Hello world' be printed in...Ch. 4.2 - What is an infinite loop?Ch. 4.3 - Rewrite the following code so it calls the range...Ch. 4.3 - What will the following code display? For number...Ch. 4.3 - What will the following code display? for number...
Ch. 4.3 - What will the following code display? for number...Ch. 4.3 - What will the following code display? for number...Ch. 4.4 - Prob. 13CPCh. 4.4 - Should an accumulator be initialized to any...Ch. 4.4 - What will the following code display? total - 0...Ch. 4.4 - What will the following code display? number 1 =...Ch. 4.4 - Rewrite the following statements using augmented...Ch. 4.5 - Prob. 18CPCh. 4.5 - Why should you take care to choose a distinctive...Ch. 4.6 - What does the phrase garbage in, garbage out mean?Ch. 4.6 - Give a general description of the input validation...Ch. 4.6 - Describe the steps that are generally taken when...Ch. 4.6 - Prob. 23CPCh. 4.6 - If the input that is read by the priming read is...Ch. 4 - A_________-controlled loop uses a true/false...Ch. 4 - A _____-controlled loop repeats a specific number...Ch. 4 - Each repetition of a loop is known as a(n) a cycle...Ch. 4 - The while loop is a _______ type of loop. a....Ch. 4 - A(n) ______ loop has no way of ending and repeats...Ch. 4 - The -= operator is an example of a(n) _________...Ch. 4 - Prob. 7MCCh. 4 - A(n) ____________ is a special value that signals...Ch. 4 - Prob. 9MCCh. 4 - The integrity of a programs output is only as good...Ch. 4 - The input operation that appears just before a...Ch. 4 - Validation loops are also known as _________. a....Ch. 4 - A condition-controlled loop always repeats a...Ch. 4 - The while loop is a pretest loop.Ch. 4 - The following statement subtracts 1 from x: x = x ...Ch. 4 - It is not necessary to initialize accumulator...Ch. 4 - In a nested loop, the inner loop goes through all...Ch. 4 - To calculate the total number of iterations of a...Ch. 4 - The process of input validation works as follows:...Ch. 4 - What is a condition-controlled loop?Ch. 4 - What is a count-controlled loop?Ch. 4 - What is an infinite loop? Write the code for an...Ch. 4 - Why is it critical that accumulator variables are...Ch. 4 - What is the advantage of using a sentinel?Ch. 4 - Prob. 6SACh. 4 - What does the phrase garbage in, garbage out mean?Ch. 4 - Give a general description of the input validation...Ch. 4 - Write a while loop that lets the user enter a...Ch. 4 - Write a while loop that asks the user to enter two...Ch. 4 - Write a for loop that displays the following set...Ch. 4 - Write a loop that asks the user to enter a number....Ch. 4 - Write a loop that calculates the total of the...Ch. 4 - Rewrite the following statements using augmented...Ch. 4 - Write a set of nested loops that display 10 rows...Ch. 4 - Write code that prompts the user to enter a...Ch. 4 - Write code that prompts the user to enter a number...Ch. 4 - Bug Collector The Bug Collector Problem A bug...Ch. 4 - Calories Burned Running on a particular treadmill...Ch. 4 - Budget Analysis Write a program that asks the user...Ch. 4 - Distance Traveled The distance a vehicle travels...Ch. 4 - Average Rainfall Write a program that uses nested...Ch. 4 - Celsius to Fahrenheit Table Write a program that...Ch. 4 - Pennies for Pay Write a program that calculates...Ch. 4 - Sum of Numbers Write a program with a loop that...Ch. 4 - Ocean Levels Assuming the ocean's level is...Ch. 4 - Tuition Increase At one college, the tuition for a...Ch. 4 - Weight Loss If a moderately active person cuts...Ch. 4 - Calculating the Factorial of a Number In...Ch. 4 - Population Write a program that predicts the...Ch. 4 - Prob. 14PECh. 4 - Prob. 15PECh. 4 - Turtle Graphics: Repeating Squares In this...Ch. 4 - Turtle Graphics: Star Pattern Use a loop with the...Ch. 4 - Turtle Graphics: Hypnotic Pattern Use a loop with...Ch. 4 - Turtle Graphics: STOP Sign In this chapter, you...
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- Write a while loop that lets the user enter a number. The number should be multiplied by 10, and the result assigned to a variable named product. The loop should iterate as long as product is less than 100.arrow_forwardCreate a sentinel while loop that prompts the user to enter integer numbers. Loop should stop when the user enters -1.arrow_forwardWrite a do-while loop that asks the user to enter two numbers. The numbers should be added and the sum displayed. The user should be asked if he or she wishes to perform the operation again. If so, the loop should repeat; otherwise it should terminate.arrow_forward
- When creating a nested loop, you would want to push the outer loop counter before entering the inner loop. True Falsearrow_forwardTrue or False: You should be incrementing the control variable of a for loop True or False: you can use the control variable of a while loop after the loop has finished executing True or False: you can nest repetition structures in repetition structures True or False: you can nest selection structure in selection structuresarrow_forwardThe main difference between using do/while loop and while loop is that while loop executes the code block once then it checked if the condition is true so it will repeat the loop. True Falsearrow_forward
- True or False? In a do…while loop, the condition is checked at the bottom of the loop.arrow_forward1Write a for loop that repeats seven times, asking the user to enter a number. The loop should also calculate the sum of the numbers entered and display the final sum. 2Write a for loop that displays the following set of numbers: 0, 10, 20, 30, 40, 50 . . . 1000 What’s the initialization step? The Boolean test/condition? Update action/incrementation? 3Convert the while loop in the following code segment to a for loop: int count = 0; while (count < 50) { System.out.println("count is " + count); count++; } 4Convert the following for loop to a while loop: for (int x = 50; x > 0; x--) { System.out.println(x + " seconds to go."); } 5Write the complete Java program for problem #1 above. Name the class SumSeven. please solve 4 and 5arrow_forwardpow(3,4)=? Select one: O a. 81 O b. 12 c. 64 O d. 7arrow_forward
- program4_2.pyWrite a program that uses a while loop to enable the user to enter any number of positive integers. The loop should end when a sentinel value of 0 (zero) is entered. The program should then report the sum of the even integers and the sum of the odd integers.arrow_forward2. While Loop Write a program, using a while loop, that asks the user to enter their monthly income. The program should then prompt the user to enter their expenses for the month. The program should keep a running total. Once the user has finished entering their expenses the program should then display if the user is over or under budget. • The output should display the monthly budget, the total expenses and whether the user is over or under budget. Use a empty return (enter key) to end the loop. Name the source code file yourName_labó 2.py. Test and run the program. Capture the output console and save it as an image file named yourName_labó_output6_2.jpg. • Submit the .py and the image files through Canvas. Part 1: For Loop Number Cube ----- 1. 2. 8. 27 64 125 216 343 512 729 10 1000 Part 2: notes/tips for the while loop activity Part 2: while loop Enter monthly incone: 1000 Enter your monthly expense or 0 to stop: 750 Enter your monthly expense or 0 to stop: 85 Enter your monthly…arrow_forwardDesign a Do-While loop that asks the user to enter two numbers. The numbers should be added and the sum displayed. The loop should ask the user whether he or she wishes to perform the operation again. If so, the loop should repeat; otherwise it should terminate.arrow_forward
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