C How to Program (8th Edition)
8th Edition
ISBN: 9780133976892
Author: Paul J. Deitel, Harvey Deitel
Publisher: PEARSON
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Chapter 8, Problem 8.20E
(Counting the Number of Words in a String) Write a
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Students have asked these similar questions
(Financial: credit card number validation) Credit card numbers follow certain pat-
terns. A credit card number must have between 13 and 16 digits. It must start with:
4 for Visa cards
5 for Master cards
37 for American Express cards
6 for Discover cards
In 1954, Hans Luhn of IBM proposed an algorithm for validating credit card
numbers. The algorithm is useful to determine whether a card number is entered
correctly or whether a credit card is scanned correctly by a scanner. Credit card
numbers are generated following this validity check, commonly known as the
Luhn check or the Mod 10 check, which can be described as follows (for illustra-
tion, consider the card number 4388576018402626):
1. Double every second digit from right to left. If doubling of a digit results in a
two-digit number, add up the two digits to get a single-digit number.
4388576018402626
→ 2 * 2 = 4
→ 2 * 2 = 4
→ 4 * 2 = 8
→ 1 * 2 = 2
6 * 2 = 12 (1+ 2 = 3)
→ 5 * 2 = 10 (1+ 0 = 1)
→ 8 * 2 = 16 (1 + 6 = 7)
→ 4 * 2 = 8
Q5. (Find the second lowest interger number) Write a program that prompts the user to enter
a set of integer numbers, and finally displays the second lowest integer number in the set. To
exit from the program enter -1.
Here is a sample run
Enter a set of integer numbers: 3 57
928-1 The second lowest number is
3.
(1) Prompt the user for a string that contains two strings separated by a comma. (1 pt)
Examples of strings that can be accepted:
Jill, Allen
Jill , Allen
Jill,Allen
Ex:
Enter input string:Jill, Allen
(2) Print an error message if the input string does not contain a comma. Continue to prompt until a valid string is entered. Note: If the input contains a comma, then assume that the input also contains two strings. (2 pts)Ex:
Enter input string:Jill AllenError: No comma in string.
Enter input string:Jill, Allen
(3) Extract the two words from the input string and remove any spaces. Store the strings in two separate variables and output the strings. (2 pts)Ex:
Enter input string:Jill, AllenFirst word: JillSecond word: Allen
(4) Using a loop, extend the program to handle multiple lines of input. Continue until the user enters q to quit. (2 pts)Ex:
Enter input string: Jill, Allen First word: Jill Second word: Allen Enter input string: Golden , Monkey First word: Golden Second word:…
Chapter 8 Solutions
C How to Program (8th Edition)
Ch. 8 - (Character Testing) Write a program that inputs a...Ch. 8 - Prob. 8.6ECh. 8 - (Convening Strings to Integers for Calculations)...Ch. 8 - (Converting Strings to Floating Point for...Ch. 8 - Prob. 8.9ECh. 8 - Prob. 8.10ECh. 8 - (Random Sentences) Write a program that uses...Ch. 8 - (Pig Latin) Write a program that encodes...Ch. 8 - (Tokenizing Telephone Numbers) Write a program...Ch. 8 - (Displaying a Sentence with Its Words Reversed)...
Ch. 8 - (Searching for Substrings) Write a program that...Ch. 8 - (Counting the Occurrences of a Substring) Write a...Ch. 8 - (Counting the Occurrences of a Character) Write a...Ch. 8 - Prob. 8.19ECh. 8 - (Counting the Number of Words in a String) Write a...Ch. 8 - (Alphabetizing a List of Strings) Use the...Ch. 8 - Prob. 8.22ECh. 8 - (Strings Starting with b) Write a program that...Ch. 8 - (Strings Ending with ed) Write a program that...Ch. 8 - (Printing Letters for Various ASCII Codes) Write a...Ch. 8 - (Write Your Own Character-Handling Functions)...Ch. 8 - Prob. 8.27ECh. 8 - Prob. 8.28ECh. 8 - Prob. 8.29ECh. 8 - Prob. 8.30ECh. 8 - (Text Analysis) The availability of computers with...Ch. 8 - (Printing Dates in Various Formats) Dates are...Ch. 8 - (Check Protection) Computers are frequently used...Ch. 8 - (Writing the Word Equivalent of a Check Amount)...Ch. 8 - Prob. 8.35ASME
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- 1. Countthe number of per character in a given sentence/paragraph. (“Hello World!” H-1,e-1, l-3, o-2…)2. Checkif the input contains characters that are not part of the alphabet. (“a#no”;“#” not part of alphabet)3. Replaceall characters in the paragraph with numbers corresponding to their alphabetnumber. (“Abe” – 125; “bad” – 214)USE JAVA PROGRAMMINGarrow_forward[Using Python] Write a program to print a string with all the vowels deleted from the string "My dog has fleas". vowels = a, e, i, o, uarrow_forwardString - Practice Questions Write a python program using strings to read input from the user and count the character a. Write a python program using strings to read two input and convert the first input to lowercase and second input to uppercase. Write a python program using strings to read input from the use and replace all the character a with z. Write a python program using strings to read input from the user and find the length of the string.arrow_forward
- 5. (Algebra: solve 2 X 2 linear equations) You can use Cramer's rule to solve the following 2 X 2 system of linear equation: ax + by = e cx + dy = f ● x = ed - bf bc ad y = af - ec ad bc - Write a program that prompts the user to enter a, b, c, d, e, and f and display the result. If ad- bc is 0, report that The equation has no solution. Enter a, b, c, d, e, f: 9.0, 4.0, 3.0, -5.0, -6.0, -21.0 Enter x is -2.0 and y is 3.0 Enter a, b, c, d, e, f: 1.0, 2.0, 2.0, 4.0, 4.0, 5.0 Enter The equation has no solutionarrow_forwardUse Character.isDigit(c) Have the user enter a password. The code loops through each character in the string. Add code in the middle section to count how many digits, uppercase and lowercase characters there are. If they have at least one of each, print that their password is ok, otherwise print that the password is not strong.Your program should prompt the user with the following. Enter Password: Below is sample input to test your program. secret Your program should output the following Not Strong Skeleton: import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner scan = new Scanner(System.in); System.out.println("Password: "); String password = scan.nextLine(); int upperTotal = 0; int lowerTotal = 0; int digitTotal = 0; for (int i = 0; i < password.length(); ++i) { char c = password.charAt(i); // Code to count what character c is here // Do not…arrow_forward[SHORT ANSWER] Use Python. Using loop, if, and string methods validate the string variable password by making sure the length of the password is at least 8 characters and has at least one alphabet and one digit. Display appropriate messages as shown in the following examples (use any additional variables):arrow_forward
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