STARTING OUT WITH C++ MPL
9th Edition
ISBN: 9780136673989
Author: GADDIS
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 13, Problem 9PC
Letter Frequencies
The letter e is the most frequently used letter in English prose, and the letter z is the least frequently used. A friend of yours doing a sociology experiment believes that this may not necessarily be true of the writings of first-year college students. To test his theory, he asks you to write a
Hint: Use an integer array of size 128, and use the ASCII values of letters to index into the array to store and retrieve counts for the letters.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Programming in C language.
Python Programming:
Sergey is suffering from a unique brain disease where his brain can only process odd digits. He is performing a task
where he has to get the gcd of given numbers in an array. Your task is to write a code which will make sure that the
gcd of numbers present in array is odd. You can consider a particular index ore than one time if needed. Your code
should return the minimum number of tries after which gcd becomes odd.
Input
Output
1
1
4
2 64 12 18
EX15: write
a program
that
return (1)
when
input number
odd
return (2) when input number is even
5/7
EX16: write a program that separate the content of a
input array (a)
into
two
arrays;
(x) : contain
the
6/7
numbers with odd index and other array (y) contain
numbers with even index .
EX17:let you have array A[20], write a program that
read the array and swap the content of odd index with
7/7
the content of even index .
Chapter 13 Solutions
STARTING OUT WITH C++ MPL
Ch. 13.1 - Name three different C++ classes that can be used...Ch. 13.1 - Name three different C++ classes that can be used...Ch. 13.1 - What is the purpose of the second parameter to the...Ch. 13.1 - Why is it important for a program to close an open...Ch. 13.1 - Which file open flag causes all output to take...Ch. 13.1 - Which file open flag causes the contents of an...Ch. 13.1 - What happens if ios: :out is used by itself to...Ch. 13.1 - What happens if ios::out is used by itself to open...Ch. 13.1 - Write a sequence of C++ statements that reads in...Ch. 13.1 - Write a sequence of C++ statements that reads in...
Ch. 13.1 - Show how to use the constructor of the fstream...Ch. 13.1 - Consider two parallel arrays of the same size, one...Ch. 13.3 - Make the required changes to the following program...Ch. 13.3 - Describe the purpose of the eof member function.Ch. 13.3 - Assume the file input.txt contains the following...Ch. 13.3 - Describe the difference between reading a file...Ch. 13.3 - Describe the difference between the getline...Ch. 13.3 - Describe the purpose of the put member function.Ch. 13.3 - What will be stored in the file out.dat after the...Ch. 13.3 - The following program skeleton, when complete,...Ch. 13.5 - Write a short program that opens two files...Ch. 13.5 - How would the number 479 be stored in a text file?...Ch. 13.5 - Describe the differences between the write member...Ch. 13.5 - What arc the purposes of the two arguments needed...Ch. 13.5 - What are the purposes of the two arguments needed...Ch. 13.5 - Describe the relationship between fields and...Ch. 13.5 - Prob. 13.27CPCh. 13.7 - Describe the difference between the seekg and the...Ch. 13.7 - Describe the difference between the tellg and the...Ch. 13.7 - Describe the meaning of the following file access...Ch. 13.7 - What is the number of the first byte in a file?Ch. 13.7 - Briefly describe what each of the following...Ch. 13.7 - Describe the mode that each of the following...Ch. 13 - Prob. 1RQECh. 13 - Before a file can be used, it must first beCh. 13 - When a program is finished using a file, it shouldCh. 13 - The__________ header file is required for file I/O...Ch. 13 - Prob. 5RQECh. 13 - The_____________ file stream data type is for...Ch. 13 - The____________ file stream data type is for input...Ch. 13 - The ______ file stream data type is for output...Ch. 13 - Write a statement that defines a file stream...Ch. 13 - Write a statement that defines a file stream...Ch. 13 - Write a statement that defines a file stream...Ch. 13 - Write two statements that use the people file...Ch. 13 - Write two statements that use the pets file stream...Ch. 13 - Write two statements that use the places file...Ch. 13 - If a file fails to open, the file stream object...Ch. 13 - Write a program segment that defines a file stream...Ch. 13 - The same formatting techniques used with ______...Ch. 13 - The ______ member function reports when the end of...Ch. 13 - The ______ function reads a line of text from a...Ch. 13 - The _______ member function reads a single...Ch. 13 - The _____ member function writes a single...Ch. 13 - Prob. 22RQECh. 13 - Prob. 23RQECh. 13 - Prob. 24RQECh. 13 - In C++, _______ provide a convenient way to...Ch. 13 - The _______ member function writes raw binary data...Ch. 13 - The _______ member function reads raw binary data...Ch. 13 - The ______ operator is necessary if you pass...Ch. 13 - In _______ file access, the contents of the file...Ch. 13 - In _____ file access, the contents of a file may...Ch. 13 - The _______ member function moves a files read...Ch. 13 - The ______ member function moves a files write...Ch. 13 - The _______ member function returns a files...Ch. 13 - The _______ member function returns a files...Ch. 13 - The ______ mode flag causes an offset to be...Ch. 13 - The ______ mode flag causes an offset to be...Ch. 13 - The ______ mode flag causes an offset to he...Ch. 13 - A negative offset causes the files read or write...Ch. 13 - Give a pseudocode algorithm for determining the...Ch. 13 - Give a pseudocode algorithm for comparing two...Ch. 13 - Prob. 41RQECh. 13 - Suppose that you have two text files that contain...Ch. 13 - Each of the following programs or program segments...Ch. 13 - File Previewer Write a program that asks the user...Ch. 13 - File Display Program Write a program that asks the...Ch. 13 - Punch Line Write a program that reads and prints a...Ch. 13 - Tail of a File Write a program that asks the user...Ch. 13 - String Search Write a program that asks the user...Ch. 13 - Sentence Filter A program that processes an input...Ch. 13 - File Encryption Filter File encryption is the...Ch. 13 - File Decryption Filter Write a program that...Ch. 13 - Letter Frequencies The letter e is the most...Ch. 13 - Put It Back C++ input stream classes have two...Ch. 13 - Prob. 11PCCh. 13 - Insertion Sort on a File II Modify the program...Ch. 13 - Prob. 13PCCh. 13 - Prob. 14PCCh. 13 - Inventory Program Write a program that uses a...Ch. 13 - Inventory Program Write a program that uses a...Ch. 13 - Group Project 17. Customer Accounts This program...
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
Code an SQL statement that creates a table with all columns from the parent and child tables in your answer to ...
Database Concepts (8th Edition)
Determine the minimum dimension a to the nearest mm of the beam's cross section to safely support the load. The...
Mechanics of Materials (10th Edition)
Here are some instructions in English. Translate each of them into Vole machine language. a. LOAD register numb...
Computer Science: An Overview (13th Edition) (What's New in Computer Science)
This string method returns a copy of the string with all leading and trailing whitespace characters removed. a....
Starting Out with Python (4th Edition)
The file produced by the Java compiler containsthat are executed by the Java Virtual Machine.
Java How to Program, Early Objects (11th Edition) (Deitel: How to Program)
Whats for dinner? Let the computer decide. Write a program that generates a random integer that is either 1, 2,...
Java: An Introduction to Problem Solving and Programming (8th Edition)
Knowledge Booster
Learn more about
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
- Write a program that simulates rolling two dice. Prompt the user to enter the number of dice rolls. Use a loop to repeatedly call a method that simulates a dice roll and returns the total of the two dice to main. Keep track of the rolls in an array in main, and end the program by showing the results of the rolls.arrow_forwardAlert dont submit AI generated answer.arrow_forwardA positive integer greater than 1 is said to be prime if it has no divisors other than 1 and itself. Write a program that asks the user to input an integer greater than 1, then display all of the prime numbers that less than or equal to the number entered. The program should work as follows: • Once the user has entered a number, the program should display an array with all of the integers from 2 up through the value entered. • The program should then use a loop to step through the array. The loop should pass each element to a method that displays the element whether it is prime number. Your result should look like, for example: Enter an integer greater than 1: 9 2, 3, 4, 5, 6, 7, 8, 9 2 is prime 3 is prime 4 is not prime 5 is prime 6 is not prime 7 is prime 8 is not prime 9 is not prime Using java programmingarrow_forward
- In Java Write a program that counts the number of occurrences of lowercase and uppercase vowels inentered lines of text. Use a two-dimensional array to store the vowel counts. The array’s firstcolumn holds the counts for the lowercase vowels, and the second column holds the counts forthe uppercase vowels.The user indicates the end of the input by pressing enter by itself. At that point, your programshould print, for each vowel, the total number of lowercase occurrences, the total number ofuppercase occurrences, and the total number of combined occurrences.Here are some implementation requirements:1. Use two separate files – one for a main driver method and one for a VowelCounter classthat keeps track of vowel counts.2. main – Repeatedly prompt the user to enter a line of text or press enter by itself to quit.Note that the stdIn.nextLine() method returns the empty string ("") if the user pressesenter by itself. For each entered line of text, call the processLine method. When the…arrow_forwardThe Sports Department of an education institution collects students' names participating in various teams like cricket, football, hockey. A student is allowed to participate in only ONE team. Write a Java program that prompts the user to input names for the three teams and checks NO identical names are found in the arrays. i.e., while entering name for the second team, it should not appear in the first team and while entering name for the third team, it should not appear in first and second team.arrow_forwardLanguage is C++ Lab10B: Binary Bubbles. Binary search is a very fast searching algorithm, however it requires a set of numbers to be sorted first. For this lab, create an array full of 11 integers which the user will generate. Like in the previous lab, assume that the values will be between -100 and +100. Then, using the sorting algorithm called BubbleSort, put the array in the correct order (from lowest to highest number). After this, please printthe array to the screen. Finally, search the array for the target value using Binary Search.The BinarySearch code will implement the algorithm described in the lecture slides. During this, you should print out a few key values which help Binary Search function. For example, this algorithm focuses on a low, mid, and high which correspond to the indices in the array the algorithm is currently considering and searching. Printing these values during the search process will help with debugging and fixing any issues. • BubbleSort sorts the array…arrow_forward
- Multiple Frequencies. In the last assignment, we calculated the frequency ofa coin flip. This required us to have two separate variables, which we used to record the numberof heads and tails. Now that we know about arrays, we can track the frequency of all numbers ina randomly generated sequence.For this program, you will ask the user to provide a range of values (from 1 to that number,inclusive) and how long of a number sequence you want to generate using that number range.You will then generate and save the sequence in an array. After that, you will count the numberof times each number occurs in the sequence, and print the frequency of each number.Hints: You can use multiple arrays for this assignment. One array should hold thenumber sequence, and another could keep track of the frequencies of each number.Sample Output #1:What’s the highest number you want to generate?: 5How long of a number sequence do you want to generate?: 10Okay, we’ll generate 10 number(s) ranging from 1 to 5!1,…arrow_forwardWrite a program that reads by asking the user the name of the file. After opening it, read it into the structure of array. The input file is in the format: firstName lastName age result (Contents of the input file) The Temp 0 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 Edward Newman 61 3 1 2 2 2 3 5 3 5 3 5 1 3 1 4 3 5 2 5 3 5 1 3 1 5 1 5 3 1 1 3 1 3 1 3 3 5 2 1 2 3 5 1 1 3 3 5 3 1 5 The program reads the result into the structure called TheResult. The constants and the structure to be used is given below: const int EXTROVERSION = 0; const int AGREEABLENESS = 1; const int CONSCIENTIOUSNESS = 2; const int NEUROTICISM = 3; const int OPEN_TO_EXPERIENCE = 4; const int NUM_QUESTIONS = 50; const int NUM_RESULT = 5; const int MAX_RESULT = 5; struct TheResult { string firstName; string lastName; int age; int answers[NUM_QUESTIONS]; // result double normalizedResult[NUM_RESULT]; }; The name of the input file is…arrow_forwardWrite a program to simulate a pick-5 lottery game. Your pro-gram should generate and store 5 distinct numbers between 1 and 9 (inclu-sive) into an array. The program prompts the user to enter five distinct between 1 and 9 and stores the number into another array. The program then compares and determines whether the two arrays are identical. If the two arrays are identical, then the user wins the game; otherwise the pro-gram outputs the number of matching digits and their position in the array.Your program must contain a function that randomly generates the pick-5 lottery numbers. Also, in your program, include the function sequential search to determine if a lottery number generated has already been generated.arrow_forward
- Write a program to store an array of integer random numbers. Program should find out from the user how many numbers to store. It should then generate and store that many random integers (the random numbers must be between 1 and 999 inclusive). The program should then determine the smallest number, the largest number, and the average of all the numbers stored in the array. Finally, it should print out all the numbers on the screen, five numbers to a line with spaces in between. Once the contents of the array have been printed to screen, display the smallest number, largest number, and average determined previously ensuring that the program design in modular. Explain whether the static variables and methods can can be used and why. The Random class of Java library (java.util.Random) implements a random number generator. To generate random numbers, construct an object of q the class Random, and then use the method nextInt(n) which returns a number between 0 (inclusive) and n (exclusive).…arrow_forwardFor Beginners Java: Write a program that ask the user to enter a list of positive scores until the user enters a negative score to terminate the input. You need to store these scores in an array. You can assume the maximum number of scores the user may enter is 50. However, you need to keep track of the actual number of scores entered. Write 2 methods: 1. calculateAverage(): this method takes the list of scores and return the average score. 2. countPerfectScores(): this method takes the list of scores and return the number of perfect scores (100). The main program reads the input and calls these methods and print the results. Please make sure you write a comment line to document what your method does.arrow_forwardJana Java Programming help, please it's for beginners, so don't make it too hard, please explain if possiblearrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Database System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill Education
Starting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSON
Digital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSON
Database Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage Learning
Programmable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education
Database System Concepts
Computer Science
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:9780134444321
Author:Tony Gaddis
Publisher:PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:9780132737968
Author:Thomas L. Floyd
Publisher:PEARSON
C How to Program (8th Edition)
Computer Science
ISBN:9780133976892
Author:Paul J. Deitel, Harvey Deitel
Publisher:PEARSON
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781337627900
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Programmable Logic Controllers
Computer Science
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education
9.1: What is an Array? - Processing Tutorial; Author: The Coding Train;https://www.youtube.com/watch?v=NptnmWvkbTw;License: Standard Youtube License