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
C++ Programming: From Problem Analysis To Program Design, Loose-leaf Version
- Redo Programming Exercise 8 using dowhile loops.arrow_forwardAll of the following are looping control structures except Select one: while loop do-while loop for loop do loop none; all of these are looping control structuresarrow_forwardProblem Description: A while loop and do/while loop will repeat code while the condition is true. The basic difference is when the condition is checked. The while loop checks the condition before the loop starts or after the loop ends. A do/while loop will check the condition at the end of the loop to determine if the loop should be repeated. A do/while loop will run at least once whereas a while may be skipped entirely. while ( ) do I/ Repeated code goes here I/ Repeated code goes here while ( ); Checkpoint 1: Use a while loop to display the numbers 1 through 10. You must initialize your loop counter before the loop and increment the loop counter inside the loop. Checkpoint 2: Use a while to ask the user for a list of numbers. It is not known how many numbers the user will enter, but the last number will be -1. After all numbers have been entered, state how many numbers were put in. Checkpoint 3: Use a do/while loop to display the numbers I through 10. You must initialize your loop…arrow_forward
- 1. Ifthe initial condition of any while loop is false it will still execute once. 2. In the case of an infinite while loop, the while expression (that is, the loop condition) is always true. 3. A counter-controlled loop is used when the exact number of data entries is known. 4. The control variable in a flag-controlled while loop is an int variable. 5. A break statement is legal in a while loop, but not in a for loop. 6. Void methods have no return data type. 7. Ifa formal parameter is a variable of a primitive data type, then after copying the value of the actual parameter, there is no connection between the formal and actual parameter. 8. All the methods defined in a class must háve different names. 9. The statement int () list = new int[15); creates list to be an array of 14 components because array index starts at 0. 10. When you pass an array as a parameter, the base address of the actual array is passed to the formal parameter. 11. Members of a class are usually classified into…arrow_forwardA type of looping technique while a condition is true, do some task. 1 do while loop for loop while loop nested for loop This loop holds a counter whose values control the number of times the loop iterates. The iteration stops upon attaining the number of times of loop being specified. do while loop O for loop O while loop nested for looparrow_forwardIn C programming: A while loop will always be executed at least once, even if expression is initially zero. True False The while and for loops are known as the "test-at-the-top" loops. * True Falsearrow_forward
- logicarrow_forwardIndicate whether the statement is true or false.arrow_forwardOverview This program will prompt a user for a start and a limit, it will then while-loop through, doubling the iterator each pass, until the limit is reached. Expected Output Example 1 Enter the start of the loop: Enter the limit of the loop: 25 The current value is 3 The current value is 6 The current value is 12 The current value is 24 The last value of current that was less than 25 was 24 Example 2 Enter the start of the loop: 25 Enter the limit of the loop: 102 The current value is 25 The current value is 50 The current value is 100 The last value of current that was less than 102 was 100 Specifications • You should submit a single file called M5A2.py • It should follow the submission standards outlined here: Submission Standards Your program populate an integer named start using input • Your program populate an integer named limit using input Your program must use an iterator named current Your program must move through the values using a while-loop Tips and Tricks That last…arrow_forward
- In a loop when a condition is false you come out of the loop. However, interesting things happen when the condition is true and you remain in the loop. What kinds of interesting things happen discuss with arguments. Course: Formal Methods in Software Engineeringarrow_forwardProblem: Feed Nibble Monster As Long As It Is Happy Write a program in which the Nibble Monster happily keeps asking for nibbles until the user gives it something that is not a nibble. At that point the monster becomes unhappy and the loop ends. Use do-while loop. HINT: You can control the loop with a boolean variable which indicates the state of Monster's feelings: it is true initially but becomes false when the Monster receives a non-nibble. Sample Runs: weron@DESKTOP-218KDUL MINGW64 /c/courses/CS2011/code $ java NibbleMonsterWithLoopwhileHappy Monster hungry :E Feed monster nibble :0 c yum! Feed monster nibble :0 F YUM! Feed monster nibble :0 8 m04r f00d! Feed monster nibble :0 $ Ewww! :0=$ You tried to poison me. Go away! weron@DESKTOP-218KDUL MINGW64 /c/courses/CS2011/code $ java NibbleMonsterWithLoopwhileHappy Monster hungry :E Feed monster nibble :0 # 4 Ewww! :o=# You tried to poison me. Go away!arrow_forwardA count-controlled loop must possess three elements:arrow_forward
C++ Programming: From Problem Analysis to Program...Computer ScienceISBN:9781337102087Author:D. S. MalikPublisher:Cengage Learning
Programming Logic & Design ComprehensiveComputer ScienceISBN:9781337669405Author:FARRELLPublisher:Cengage
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 with Microsoft Visual Basic 2017Computer ScienceISBN:9781337102124Author:Diane ZakPublisher:Cengage Learning
EBK JAVA PROGRAMMINGComputer ScienceISBN:9781337671385Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENT