Concept explainers
Videos
(a)
To verify whether the given statement is true or false.
(a)
True.
Explanation of Solution
Explanation:
A loop is a control structure that causes certain statements to execute repeatedly until a certain condition is met. This is the definition of a loop. Examples of a loop are for loop, do-while loop.
Conclusion:
Hence, the given condition is true.
(b)
To verify whether the given statement is true or false.
(b)
False.
Explanation of Solution
Given statement:
Explanation:
While loop is a loop that is used to perform repeated operations. In a counter-controlled while loop, it is essential to initialize the value of loop control variable, otherwise, the loop will behave in an undefined manner. To start the loop an initial value is always required that acts as a starting point of the loop.
Conclusion:
Hence, the given condition is false.
(c)
To verify whether the given statement is true or false.
(c)
True.
Explanation of Solution
Explanation:
In a while loop, the loop body is executed repeatedly as long as the condition specified in the loop header is true. However, if the condition is initially false, the loop body will not be executed at all. This is because the loop body is only executed when the condition is true. If the condition is false from the beginning, the loop will not execute at all, and the program control will move on to the next statement after the loop.
Conclusion:
Hence, the given condition is true.
(d)
To verify whether the given statement is true or false.
(d)
False.
Explanation of Solution
Explanation:
In an infinite while loop, the while expression is always true from the beginning and remains true throughout the execution of the loop. This is because the loop is designed to execute indefinitely, and no condition could cause the loop to terminate.
Conclusion:
Hence, the given condition is false.
(e)
To verify whether the given statement is true or false.
(e)
True.
Explanation of Solution
Given statement:
The while loop:
j=0;
while (j<=10)
j++;
terminates if j>10.
Explanation:
The while loop as given in the question will exit until j is no longer less than or equal to 10. When j is equal to 11, the loop terminates.
Conclusion:
Therefore, the statement "The while loop terminates if j > 10" is true.
(f)
To verify whether the given statement is true or false.
(f)
True.
Explanation of Solution
Explanation:
A sentinel-controlled while loop is a type of event-controlled while loop that is used when we want to read a sequence of data items from an input stream, such as a keyboard or file input. The loop continues until a special value called a sentinel value is encountered, which signals the end of the input and causes the loop to terminate.
Conclusion:
Hence, the given condition is true.
(g)
To verify whether the given statement is true or false.
(g)
True.
Explanation of Solution
Explanation:
The data can be input either from the console or read from the file. While reading from the file, if the length of the file is specified then reading from it becomes easy. But, if the length of the file is not specified then an EOF (End of File)-controlled loop is a good choice for reading data from a file because it will continue reading until it reaches the end of the file and stops once the end is reached.
Conclusion:
Hence, the given condition is true.
(h)
To verify whether the given statement is true or false.
(h)
False.
Explanation of Solution
Explanation:
When a while loop terminates, the program control goes directly to the statement immediately following the while loop and does not go back to the statement just before the while loop. Going back to the previous statement is always performed by using the go to statement.
Conclusion:
Hence, the given condition is false.
(i)
To verify whether the given statement is true or false.
(i)
False.
Explanation of Solution
Explanation:
A do-while loop is called a post-test loop because the condition is tested at the end of the loop body after the loop has been executed at least once.
Conclusion:
Hence, the given condition is false.
(j)
To verify whether the given statement is true or false.
(j)
True.
Explanation of Solution
Explanation:
The break statement is used to exit a loop prematurely and executing a break statement in the body of a loop immediately terminates the loop.
Conclusion:
Hence, the given condition is false.
Want to see more full solutions like this?
Chapter 5 Solutions
MINDTAP COMPUTING FOR MALIK'S C++ PROGR
- Redo Programming Exercise 8 using dowhile loops.arrow_forward(For review) a. What’s the difference between a pretest and posttest loop? b. If the condition being tested in a pretest loop is false, how many times are statements in the loop executed? c. If the condition being tested in a posttest loop is false, how many times are statements in the loop executed?arrow_forwardAnswer True or False _____ 1. It is possible that the body of a while loop might not execute at all. _____ 2. Control structures alter the normal flow of control. _____ 3. The result of a logical expression cannot be assigned to an int variable. _____ 4. Every if statement must have a corresponding else. _____ 5. The expression ! (x > 0) is true only if x is a negative number. _____ 6. The while loop: j = 0; while (j <= 10) j++; terminates when j > 10. _____ 7. A loop is a control structure that causes certain statements to execute over and over. _____ 8. When a while loop terminates, the control first goes back to the statement just before the while statement, and then the control goes to the statement immediately following the while loop. _____ 9. In a do…while loop, the condition is checked at the bottom of the loop. _____ 10. A do…while loop may never execute.arrow_forward
- How is the body of a for loop defined? A. The body of a for loop is defined by an indented block of code following the for statement, similar to the body of an if statement. B. The body of a for loop is defined by an opening curly brace, one or more lines of code and a closing curly brace. C. The body of a for loop is defined by a left parenthesis, one or more lines of code and a right parenthesis. D. For loops do not have a body. What is a for loop? A. The for loop is the new improved three loop as it was defined in Python version 2. B. The for loop enables a program to repeat a block of code multiple times. C. The for loop enables a program to repeat a block of code one time, much like the if statement. D. The for loop is a block of code included at the beginning (the for) of a program. Which of the following is an example of a sequence that might be used in a for statement? A. An integer B. A floating point number C. A list D. A boolean variable How is a…arrow_forward1. Describe three situations where combined counting and logical looping statement is need. 2. Describe specific programming situations that require a posttest loop.arrow_forwardThe loop continuation condition is the polar opposite of the loop termination condition in terms of its meaning. True Falsearrow_forward
- Attached is a question about loops.arrow_forwardProgramming languages that support goto statements are the only ones in which loops may be entered in the body. True Falsearrow_forwardthumb_down Step 1 looking for a simple python script with an explanation of how -(for loops) work. provide code and explanation using requirements below,. Write a program that prints all the factors of a given number and checks whether it is a prime number. The program Asks user for a positive number strictly between 1 and 5000 (both exclusive). Validates that the number is within the range, if not, prompts the user to enter the number again, until user enters a valid number. Prints all the factors, and the total count of factors. (Using either a for loop or a while loop, checks all the numbers less than the input number to see if it is a factor. A number k is a factor of n if n % k == 0 ). Next checks and reports whether the input number is a prime number. ( A prime number is only divisible by two factors : 1 and itself)arrow_forward
- Construct a do-while() loop in c, which continues to display the following menu: 1. Add funds to bank account.2. Withdraw funds from back account. 3. Exit and prompt the user for an option, while the option entered by the user is not in the range 1- 3, inclusive. Note: you are constructing an input validation loop. Show all variable declarations.arrow_forwardQuestions about Repetition Structure Which is the easiest way to looping? Explain. Find working examples of branching statements break and continue.arrow_forwardS-O-S is an internationally recognized distress signal. It consists of a sequence of 3 short signals, followed by 3 long signals, followed by 3 short signals, and then a pause. This pattern is then repeated over and over (indefinitely). Write an Arduino program that blinks the onboard LED in this manner. Your challenge is to turn the LED on no more than 3 times in the loop function.arrow_forward
C++ Programming: From Problem Analysis to Program...Computer ScienceISBN:9781337102087Author:D. S. MalikPublisher:Cengage Learning
Microsoft Visual C#Computer ScienceISBN:9781337102100Author:Joyce, Farrell.Publisher:Cengage Learning,
C++ for Engineers and ScientistsComputer ScienceISBN:9781133187844Author:Bronson, Gary J.Publisher:Course Technology Ptr
Programming Logic & Design ComprehensiveComputer ScienceISBN:9781337669405Author:FARRELLPublisher:Cengage
EBK JAVA PROGRAMMINGComputer ScienceISBN:9781337671385Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENT