Absolute C++
6th Edition
ISBN: 9780133970784
Author: Walter Savitch, Kenrick Mock
Publisher: Addison-Wesley
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Chapter 2, Problem 4PP
Write a
A prime number is a number that can only be divided by one and itself (i.e., 3, 5, 7, 11, 13, 17, . )
One way to solve this problem is to use a doubly-nested loop. The outer loop can iterate from 3 to 100, while the inner loop checks to see whether the counter value for the outer loop is prime. One way to decide whether the number n is prime is to loop from 2 to
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Which for statement repeats for all positive four-digit integers in decreasing order?
I.e.: the for loop will repeat for 9999, 9998, 9997, ..., 1000.
Select one:
a. for (int j = 9999; j > 1000; j--)
b. for (int j = 1000; j 999; j--)
e. None of the others
JAVA program
Write a while loop that prints all the even numbers from 1 to 100 (inclusive).
and another while loop to print all the odd numbers from 1 to 100 (inclusive).
Assume n is a positive integer. Consider the loop below:
x := 0
for i:= 5 to 5n
x = 2(x+i) - 7
next i
There are
the total number of operations performed in this loop is
operations performed in each run of the loop and the loop runs
times, so
Chapter 2 Solutions
Absolute C++
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- Use nested loop in Java language. This program asks the user to enter an integer from 3 to 9* and prints a pattern of numbers based on that number.* For example, given the number 4 as input, the output would be:* * 1** 21** 321** 4321** 321** 21** 1** * Print a newline between the prompt and the beginning of the stars.* Note that no input validation is required.arrow_forwardWrite a while loop that prints the multiples of 3 from 300 down to 3. The programming language is java.arrow_forwardWrite a program that reads in a series of integer numbers, and determines how many positive odd numbers are among them. Numbers are read until a negative integer is given. Use DO-Loop with EXIT statement.arrow_forward
- Write a program that asks the user to enter how many students they have. Use a for loop to iterate through each student. For each student, allow the user to enter as many scores as they want and let them know that entering -1 will indicate the end of entering scores( note: use a while loop with sentinel value). Sum all the scores for each student and display the total on the screen . For example: Student 1 Total score is 340 Student 2 Total score is 200arrow_forwardWrite the following loops. a. Write a while loop that prints all the even numbers from 1 to 100 (inclusive). b. Write do while loop to print all the odd numbers from 1 to 100 (inclusive).arrow_forwardWrite a loop that iterates exactly ten times. With each iteration it should ask the user to enter a number, and keep a running total of all numbers entered. When the loop is finished, display the total sum (float) and the average of the 10 numbers (float).arrow_forward
- Write a loop of your choice that continues to read an integer x as long as x not divisible by 5 and 3. Complete the missing code in the space provided below. { int x=1; ............ }arrow_forwardthe total number of iterations of nested loops can be calculated by : O a. outer loop iterations / inner loop iterations O b. outer loop iterations + inner loop iterations O c. outer loop iterations - inner loop iterations O d. outer loop iterations * inner loop iterationsarrow_forwardPython Coding-While Loops (In PyCharm Community edition) Create a while loop that SUMS up ALL the numbers given from an initial number and an ending number. Example would be : Input1 : What is the first number? 0 Input2 : What is the last number? 3 DO NOT SHOW but these are the computations inside the code : 0 + 1 + 2 + 3 = 6 This is the Output : The sum of all the number from 0 to 3, is 6 In the code you are going to use a total variable and add each additional time it runs through the loop to that total. REMEMBER the assignment from the first unit of programming where we used this formula : BUT you are going to create your own method using a while loop to emulate what formula accomplishes WITHOUT using this formula. The user will put in the first number and the last to be SUMMED - you will use the while loop to calculate all of the additions leading to the final number.arrow_forward
- Write a while loop that prints userNum divided by 2 (integer division) until reaching 1. Follow each number by a space. Example output for userNum = 40: 20 10 5 2 1 Note: These activities may test code with different test values. This activity will perform four tests, with userNum = 40, then with userNum = 2, then with userNum = 0, then with userNum = -1. See "How to Use zyBooks". Also note: If the submitted code has an infinite loop, the system will stop running the code after a few seconds, and report "Program end never reached." The system doesn't print the test case that caused the reported message. 367012.2549490.qx3zqy7 1 import java.util.Scanner; 2 3 public class DivideByTwoLoop { public static void main (String [] args) { Scanner scnr = new Scanner(System.in); int userNum; 4 7 8 userNum scnr.nextInt(); 9. 10 * Your solution goes here 11 System.out.println(""); } 12 13 14 }arrow_forwardWrite a while loop that prints userNum divided by 2 (integer division) until reaching 1. Follow each number by a space. Example output for userNum = 40: 20 10 5 2 1 Note: These activities may test code with different test values. This activity will perform four tests, with userNum = 40, then with userNum = 2, then with userNum = 0, then with userNum = -1. See "How to Use zyBooks". Also note: If the submitted code has an infinite loop, the system will stop running the code after a few seconds, and report "Program end never reached." The system doesn't print the test case that caused the reported message. 367012.2549490.qx3zqy7 1 import java.util.Scanner; 3 public class DivideByTwoLoop { public static void main (String [] args) { Scanner scnr = new Scanner(System.in); int userNum; 4 6. 7 8 userNum = scnr.nextInt(); 9. 10 V* Your solution goes here */ 11 12 System.out.println(""); } 13 14 }arrow_forwardFactorials The factorial of n (written n!) is the product of the integers between 1 and n. Thus 4! = 1*2*3*4 = 24. By definition, 0! = 1. Factorial is not defined for negative numbers. Write a program that asks the user for a non-negative integer and computes and prints the factorial of that integer. You'll need a while loop to do most of the work-this is a lot like computing a sum, but it's a product instead. And you'll need to think about what should happen if the user enters 0. 1. 2. Now modify your program so that it checks to see if the user entered a negative number. If so, the program should print a message saying that a nonnegative number is required and ask the user the enter another number. The program should keep doing this until the user enters a nonnegative number, after which it should compute the factorial of that number. Hint: you will need another while loop before the loop that computes the factorial. You should not need to change any of the code that computes the…arrow_forward
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