Objects First with Java: A Practical Introduction Using BlueJ (6th Edition)
6th Edition
ISBN: 9780134477367
Author: David J. Barnes, Michael Kolling
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 7, Problem 15E
Add a method busiestHour to LogAnalyzer that returns the busiest hour. You can do this by looking through the hourCounts array to find the element with the biggest count.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Add a new method to ArrayTools with filter. Make this method accept a String array. Change all the Strings that are longer than 5 characters to uppercase.
Write in Java and use test cases 1 & 2 as a result.
Implement code to Find all the possible triplets from the array that can form the triangle.
please use the name, phonenumber and phonebookentry to build this.
The three parallel arrays are gone — replaced with a single array of type PhonebookEntry.
You should be reading in the entries using the read method of your PhonebookEntry class (which in turn uses the read methods of the Name and PhoneNumber classes).
Use the equals methods of the Name and PhoneNumber classes in your lookup and reverseLookup methods.
Use the toString methods to print out information.
Make 100 the capacity of your Phonebook array
Throw an exception (of class Exception) if the capacity of the Phonebook array is exceeded.
Place a try/catch around your entire main and catch both FileNotFoundExceptions and Exceptions (remember, the order of appearance of the exception types in the catch blocks can make a difference).
Do not use
BufferedReader while(true)
breaks
The name of your application class should be Phonebook. Also, you should submit ALL your classes (i.e., Name, Strip off public from all your class…
Chapter 7 Solutions
Objects First with Java: A Practical Introduction Using BlueJ (6th Edition)
Ch. 7 - Prob. 1ECh. 7 - Prob. 2ECh. 7 - Read through the LogAnalyzer class and identify...Ch. 7 - Modify the LogAnalyzer class so that it has a...Ch. 7 - Prob. 14ECh. 7 - Add a method busiestHour to LogAnalyzer that...Ch. 7 - Add a method quietestHour to LogAnalyzer that...Ch. 7 - Prob. 18ECh. 7 - Prob. 34E
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
- Implement a method called addBefore in LineArrayBag. This method takes two Line objects, called target and element, as input. The method then inserts element before target in the array. If target is not found in the array, then element is inserted as the last element in the array. You can assume there are no duplicates in the array which means that target may exist at most once in the array. Write code in the driver to test this method.arrow_forwardImplement a method called addBefore in LineArrayBag. This method takes two Line objects, called target and element, as input. The method then inserts element before target in the array. If target is not found in the array, then element is inserted as the lastelement in the array. You can assume there are no duplicates in the array which means that target may exist at most once in the array. Write code in the driver to test this method. this is in java programmingarrow_forwardPlease use java only and public int method. Show the steps with the pictures also. In this assignment, you will implement a class calledArrayAndArrayList. This class includes some interesting methods for working with Arrays and ArrayLists. For example, the ArrayAndArrayList class has a “findMax” method which finds and returns the max number in a given array. For a defined array: int[] array = {1, 3, 5, 7, 9}, calling findMax(array) will return 9. There are 4 methods that need to be implemented in the A rrayAndArrayList class: ● howMany(int[] array, int element) - Counts the number of occurrences of the given element in the given array. ● findMax(int[] array) - Finds the max number in the given array. ● maxArray(int[] array) - Keeps track of every occurrence of the max number in the given array. ● swapZero(int[] array) - Puts all of the zeros in the given array, at the end of the given array. Each method has been defined for you, but without the code. See the javadoc for each…arrow_forward
- Exercise #2 Implement an instance method belonging to the IntArrayBag class that takes two input parameters, oldVal and newVal. The method replaces each oldVal element in the array with newVal. Make sure to include the method header.arrow_forwardjava Write a program to do the following: Create an ArrayList of Student. Add 7 elements to the ArrayList. Use for each loop to print all the elements of an ArrayList. Remove an element from an ArrayList using the index number. Remove the element from an ArrayList using the content (element name).arrow_forwardCreate a method multiply(), that receives the 2D array you created in 2. as aninput, multiplies all of its elements and displays the product.arrow_forward
- Add a new method to ArrayTools called copy. Make this method accept two String arrays. Copy the content from the first array into the second array. If the second array isn't big enough, show an error message. Write in Java and use test case 1 as result.arrow_forwardneed Urgent Requirement: There will one question related to ArrayList class similar to the following question. The following driver has created a an ArrayList of Point objects. write a method that moves all the points with the value of x greater than its value of y to the end of the list. .arrow_forwardChallenge exercise Create a class called SortingTest. In it, create a method that accepts an array of int values as a parameter and prints the elements sorted out to the terminal (smallest element first).arrow_forward
- Please use java. In this assignment, you will implement a class calledArrayAndArrayList. This class includes some interesting methods for working with Arrays and ArrayLists. For example, the ArrayAndArrayList class has a “findMax” method which finds and returns the max number in a given array. For a defined array: int[] array = {1, 3, 5, 7, 9}, calling findMax(array) will return 9. There are 4 methods that need to be implemented in the A rrayAndArrayList class: ● howMany(int[] array, int element) - Counts the number of occurrences of the given element in the given array. ● findMax(int[] array) - Finds the max number in the given array. ● maxArray(int[] array) - Keeps track of every occurrence of the max number in the given array. ● swapZero(int[] array) - Puts all of the zeros in the given array, at the end of the given array. Each method has been defined for you, but without the code. See the javadoc for each method for instructions on what the method is supposed to do and how…arrow_forwardPlease add comment on each line Thank you very much! Write a static method, getBigWords, that gets a single String parameter and returns an array whose elements are the words in the parameter that contain more than 5 letters. (A word is defined as a contiguous sequence of letters.) EXAMPLE: So, if the String argument passed to the method was "There are 87,000,000 people in Canada", getBigWords would return an array of two elements, "people" and "Canada". ANOTHER EXAMPLE: If the String argument passed to the method was "Send the request to support@turingscraft.com", getBigWords would return an array of three elements, "request", "support" and "turingscraft".arrow_forwardPlease don't change anything. Put your code in line 7, 11 and 13. Write a method named getSquares which takes an integer array and returns a new integer array of the same length where each element is the square of the corresponding element in the input array. For example, if the input array is {2, 4, 5} the output would be {4, 16, 25}.arrow_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
Definition of Array; Author: Neso Academy;https://www.youtube.com/watch?v=55l-aZ7_F24;License: Standard Youtube License