Starting Out with Java: From Control Structures through Data Structures (4th Edition) (What's New in Computer Science)
4th Edition
ISBN: 9780134787961
Author: Tony Gaddis, Godfrey Muganda
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 9, Problem 12PC
Program Plan Intro
Miscellaneous String Operations
Program Plan:
The detail of “StringOperationsDemo” class is shown below:
- In the “main()” method,
- Declare and initialize the variable and array variable.
- Call the wordCount() method to display the number of words in string.
- Call the mostFrequent() method to display the most frequently occurring character.
- Call replaceSubString() method to replace “the” with “that”.
- Call arrayToString() method to convert an array to a string.
- Display the converted string.
The detail of “StringOperations” class is shown below:
- In the “wordCount()” method,
- Separate the string using a space delimiter.
- Return the number of words in string.
- In the “arrayToString()” method,
- Convert the array value to string.
- Return the converted string.
- In the “mostFrequent()” method,
- Declare the variable.
- Convert the String to an array and store into “cArray” variable.
- Create an integer array variable to store the frequencies of the characters in “cArray” variable.
- The for loop executes until the frequencies length. If yes,
- Initialize frequencies elements to “0”.
- The for loop executes until the array length. If yes, loop executes until the array length. If yes,
- Check frequency of element and then calculate it.
- The for loop executes until the frequencies length. If yes,
- Check the frequencies of elements and determine the most frequent character.
- Return the most frequent character.
- In the “replaceSubString()” method,
- Check the “string2” and “string3” are the same. If yes,
- Return the string.
- Create an object for “string1”.
- Determine the first occurrence of “string2”.
- The while loop executes until the "index" is not equal to “-1”. If yes,
- Call the replace() method to replace this occurrence of the substring.
- Find the next occurrence of “string2”.
- Return the string.
- Check the “string2” and “string3” are the same. If yes,
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
In the class String, the substring method inserts a String into another String.
-True
or
-False
Fleet class:
Instance Variables
An array that stores Aircraft that represents Delta Airlines entire fleet
A variable that represents the count for the number of aircraft in the fleet
Methods:
o Constructor-One constructor that instantiates the array and sets the count to aero
readFile()-This method accepts a string that represents the name of the file to be
read. It will then read the file. Once the data is read, it should create an aircraft and
then pass the vehicle to the addAircraft method. It should not allow any duplication
of records. Be sure to handle all exceptions.
o writeFile()-This method accepts a string that represents the name of the file to be
written to and then writes the contents of the array to a file. This method should
call a sort method to sort the amay before writing to it.
sortArray()-This method returns a sorted array. The array is sorted by registration
number.u
addAircraft- This method accepts an aircraft and adds it to the fleet(the array only
if it is not…
JAVA PPROGRAM ASAP
Please create this program ASAP BECAUSE IT IS MY LAB ASSIGNMENT so it passes all the test cases. The program must pass the test case when uploaded to Hypergrade.
Chapter 9. PC #2. Word Counter (page 608)
Write a method that accepts a String object as an argument and returns the number of words it contains. For instance, if the argument is “Four score and seven years ago” the
method should return the number 6. Demonstrate the method in a program that asks the user to input a string and then passes it to the method. The number of words in the string should be displayed on the screen.
Test Case 1
Please enter a string or type QUIT to exit:\nHello World!ENTERThere are 2 words in that string.\nPlease enter a string or type QUIT to exit:\nI have a dream.ENTERThere are 4 words in that string.\nPlease enter a string or type QUIT to exit:\nJava is great.ENTERThere are 3 words in that string.\nPlease enter a string or type QUIT to exit:\nquitENTER
Chapter 9 Solutions
Starting Out with Java: From Control Structures through Data Structures (4th Edition) (What's New in Computer Science)
Ch. 9.2 - Prob. 9.1CPCh. 9.2 - Write an if statement that displays the word digit...Ch. 9.2 - Prob. 9.3CPCh. 9.2 - Write a loop that asks the user, Do you want to...Ch. 9.2 - Prob. 9.5CPCh. 9.2 - Write a loop that counts the number of uppercase...Ch. 9.3 - Prob. 9.7CPCh. 9.3 - Modify the method you wrote for Checkpoint 9.7 so...Ch. 9.3 - Look at the following declaration: String cafeName...Ch. 9.3 - Prob. 9.10CP
Ch. 9.3 - Prob. 9.11CPCh. 9.3 - Prob. 9.12CPCh. 9.3 - Prob. 9.13CPCh. 9.3 - Look at the following code: String str1 = To be,...Ch. 9.3 - Prob. 9.15CPCh. 9.3 - Assume that a program has the following...Ch. 9.4 - Prob. 9.17CPCh. 9.4 - Prob. 9.18CPCh. 9.4 - Prob. 9.19CPCh. 9.4 - Prob. 9.20CPCh. 9.4 - Prob. 9.21CPCh. 9.4 - Prob. 9.22CPCh. 9.4 - Prob. 9.23CPCh. 9.4 - Prob. 9.24CPCh. 9.5 - Prob. 9.25CPCh. 9.5 - Prob. 9.26CPCh. 9.5 - Look at the following string:...Ch. 9.5 - Prob. 9.28CPCh. 9.6 - Write a statement that converts the following...Ch. 9.6 - Prob. 9.30CPCh. 9.6 - Prob. 9.31CPCh. 9 - The isDigit, isLetter, and isLetterOrDigit methods...Ch. 9 - Prob. 2MCCh. 9 - The startsWith, endsWith, and regionMatches...Ch. 9 - The indexOf and lastIndexOf methods are members of...Ch. 9 - Prob. 5MCCh. 9 - Prob. 6MCCh. 9 - Prob. 7MCCh. 9 - Prob. 8MCCh. 9 - Prob. 9MCCh. 9 - Prob. 10MCCh. 9 - To delete a specific character in a StringBuilder...Ch. 9 - Prob. 12MCCh. 9 - Prob. 13MCCh. 9 - These static final variables are members of the...Ch. 9 - Prob. 15TFCh. 9 - Prob. 16TFCh. 9 - True or False: If toLowerCase methods argument is...Ch. 9 - True or False: The startsWith and endsWith methods...Ch. 9 - True or False: There are two versions of the...Ch. 9 - Prob. 20TFCh. 9 - Prob. 21TFCh. 9 - Prob. 22TFCh. 9 - Prob. 23TFCh. 9 - int number = 99; String str; // Convert number to...Ch. 9 - Prob. 2FTECh. 9 - Prob. 3FTECh. 9 - Prob. 4FTECh. 9 - The following if statement determines whether...Ch. 9 - Write a loop that counts the number of space...Ch. 9 - Prob. 3AWCh. 9 - Prob. 4AWCh. 9 - Prob. 5AWCh. 9 - Modify the method you wrote for Algorithm...Ch. 9 - Prob. 7AWCh. 9 - Look at the following string:...Ch. 9 - Assume that d is a double variable. Write an if...Ch. 9 - Write code that displays the contents of the int...Ch. 9 - Prob. 1SACh. 9 - Prob. 2SACh. 9 - Prob. 3SACh. 9 - How can you determine the minimum and maximum...Ch. 9 - Prob. 1PCCh. 9 - Prob. 2PCCh. 9 - Prob. 3PCCh. 9 - Prob. 4PCCh. 9 - Prob. 5PCCh. 9 - Prob. 6PCCh. 9 - Check Writer Write a program that displays a...Ch. 9 - Prob. 8PCCh. 9 - Prob. 9PCCh. 9 - Word Counter Write a program that asks the user...Ch. 9 - Sales Analysis The file SalesData.txt, in this...Ch. 9 - Prob. 12PCCh. 9 - Alphabetic Telephone Number Translator Many...Ch. 9 - Word Separator Write a program that accepts as...Ch. 9 - Pig Latin Write a program that reads a sentence as...Ch. 9 - Prob. 16PCCh. 9 - Lottery Statistics To play the PowerBall lottery,...Ch. 9 - Gas Prices In the student sample program files for...
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
- Java please Line is a String object that holds an unknown number of int values separated by spaces. Write a segment of code that computes and displays the sum of the values in line.arrow_forwardThe ByteBuffer class array method returns an array of bytes, which is used as the argument of the:Select one:a. String class constructor.b. Byte class constructor.c. Int class constructor.arrow_forwardStaff # name: String # id: int PartTimer + Staff() + Staff(name: String, id: int) skillLevel: int + getName (): String + getId (): int + calculatePay () : double + toString (): String hoursWorked: int + Part Timer (name: String, id: int, skillLevel: int, hoursWorked: int) + getskillLevel(): int + getHours Worked () : int + tostring () : String java.lang.Comparable compareTo (o: Object): int Figure 1: The relationship between staff, PartTimer and Comparable Skill Level / Tahap Kemahiran Pay Rate Per Hour/ Kadar Bayaran Per Jam 0 ( Basic / Asas) RM50.00 1 (Moderate / Sederhana) RM100.00 RM150.00 2 (Expert / Mahir) Table 1: Skill level and the pay rate per hour Write a complete Java program to create PartTimer class and test class based on the Figure 1, Table 1 and the following requirements: Partimer class is derived from staff and implements Comparable Interface. The calculate Pay()method from the staff class will be implemented in the subclass to calculate the employee's pay. The pay…arrow_forward
- PYTHON ONLY PLZZZ Create a class object with the following attributes and actions: Class Name Class number Classroom Semester Level Subject Actions: Store a class list Print the class list as follows: Class name Class Number Semester Level Subject Test your object: Ask the user for all the information and to enter at least 3 classes test using all the actions of the object print using the to string action Describe the numbers and text you print. Do not just print numbers or strings to the screen explain what each number represents.arrow_forwardTrue or FalseWhen you call a string object’s Split method, the method divides the string into two substrings and returns them as an array of strings.arrow_forwardAll the Same Letter Write a method to determine if all the letters in a String are the same letter. public boolean sameLetter(String str) { //declare first character variable //create statements to compare each character and include return statement //create other return statement }arrow_forward
- Name format: You must use String object and not StringBuffer or StringBuilder. Many documents use a specific format for a person's name. Write a program that take one Line as an input. Example: Scanner input = new Scanner(System.in); System.out.println(“Enter firstName middleName lastName separated by at least one blank, It may have more than one blank separating firstName middleName lastName."); Input sample : Pat Silly Doe || Note these are separated by at least one blank. String line = input.nextLine() Ex: If the input is: Pat Silly Doe the output is: Doe, P.S. If the input has the form: firstName lastName the output is: lastName, firstInitial. Ex: If the input is: Julia Clark the output is: Clark, J. Please submit the .java source file and the sample run in a text file. Thanksarrow_forwardPalindrome Checkercreate a JavaScript program that checks if phrasesentered by the user are palindromes. A palindrome is a word, number, phrase, or other sequence of characters which reads the same backward as forward, such as “SIR”,“raceBIKE”, “Never odd or even”, “20/1/20”. The program should prompt the user to typein a phrase that is at least three characters long, and then tell the user whether the phrasewas a palindrome. Note, the decision should be based solely on letters and numericaldigits, and so it should not consider other characters, such as spaces or exclamationmarks, even though these might be entered by the user. when checking palindromes.A. Select your test data with care. Both palindromes and non-palindromes would be included in this. Provide examples that are text, numeric, and mixed; ignore any additional characters and spaces; andB. Ask the user for the word and then read their input. To verify that their input string has been read correctly, test this by displaying…arrow_forwardGrade Book A teacher would like to assign a letter grade to a student, based on student's test score. Write a program to help this teacher managing her students' test score. Use the following grading scale to assign a letter grade to a student. Test Score Letter Grade 80 - 100 A 70 - 79 B 60 69 C 50 - 59 0- 49 F Your program must have an array of string objects to hold the student names and an array of int to hold the student scores. Let the teacher determines the number of students and ask the teacher to enter the information for each student. Your program should have the following programmer-defined functions: getInput () - to read the students name and scores from user getGrade () - to determine the letter grade corresponding to the score getReport () - to determine the maximum, minimum, average and standard deviation of the scores Display an error message if the teacher enter mark below 0 or above 100, and keep asking for a valid value. The program should also be capable of…arrow_forward
- Java coding Strings as argumentsarrow_forwardc languagearrow_forwardJava Program Fleet class- reading from a file called deltafleet.txt-Using file and Scanner Will be creating a file called newfleet.txt Instance Variables:o An array that stores Aircraft that represents Delta Airlines entire fleeto A variable that represents the count for the number of aircraft in the fleet• Methods:o Constructor- One constructor that instantiates the array and sets the count to zeroo readFile()- This method accepts a string that represents the name of the file to beread. It will then read the file. Once the data is read, it should create an aircraft andthen pass the vehicle to the addAircraft method. It should not allow any duplicationof records. Be sure to handle all exceptions.o writeFile()- This method accepts a string that represents the name of the file to bewritten to and then writes the contents of the array to a file. This method shouldcall a sort method to sort the array before writing to it.o sortArray()- This method returns a sorted array. The array is…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- EBK JAVA PROGRAMMINGComputer ScienceISBN:9781337671385Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENTEBK JAVA PROGRAMMINGComputer ScienceISBN:9781305480537Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENTMicrosoft Visual C#Computer ScienceISBN:9781337102100Author:Joyce, Farrell.Publisher:Cengage Learning,
EBK JAVA PROGRAMMING
Computer Science
ISBN:9781337671385
Author:FARRELL
Publisher:CENGAGE LEARNING - CONSIGNMENT
EBK JAVA PROGRAMMING
Computer Science
ISBN:9781305480537
Author:FARRELL
Publisher:CENGAGE LEARNING - CONSIGNMENT
Microsoft Visual C#
Computer Science
ISBN:9781337102100
Author:Joyce, Farrell.
Publisher:Cengage Learning,