Write a class with a main() method. The main() method should declare and initialize four different ArrayLists, each containing at least four int values. The class should also contain a method named fiveEight. Given an ArrayList of ints, the fiveEight should return the int 30 if every element of the given ArrayList is either. a 5 or a 8; otherwise, it should return -9. There should be four calls to the allfiveEight method in the main() method.

Write a class with a main() method. The main() method should declare and initialize four different ArrayLists, each containing at least four int values. The class should also contain a method named fiveEight. Given an ArrayList of ints, the fiveEight should return the int 30 if every element of the given ArrayList is either. a 5 or a 8; otherwise, it should return -9. There should be four calls to the allfiveEight method in the main() method.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Related questions

Q: his program is going to maintain a list of customers’ names and bank account balances. Create a…

A: Note: Answering the first three subparts as per the guidelines. Task : Create the string ArrayList…

Q: Write a program that creates a 2-D array initialized with test data . Use any primitive type of data…

A: Declaration and Initialization of two-dimensional array in java language: A two-dimensional array…

Q: Create a new class in the practicum1 package named ArrayUtilities. Write a method in the class that…

A: Output Screenshot:

Q: The local Driver’s License Office has asked you to write a program that grades the written portion…

A: Below are the algorithm and Java implementation of given scenario situation:

Q: Given a base Plant class and a derived Flower class, complete main() to create an ArrayList called…

A: Start by creating the 'Plant' class with the required fields ('plantName' and 'plantCost') and the…

Q: Create the Median class that has the method calculateMedian that calculates the median of the…

A: Given :- Create the Median class that has the method calculateMedian that calculates the median of…

Q: This program is going to maintain a list of customers’ names and bank account balances. 1. Create a…

A: import java.util.*; import java.util.Scanner;public class Main //CustomerList { public static void…

Q: lass contains three independent static methods and contains no fields (none should be added). The…

A: It is defined as a user defined blueprint or prototype from which objects are created. It…

Q: Can someone help me write a class in Java. The class will read a file of people: their name, year…

A: I hope this example will give you a good starting point for creating your own classes in Java.…

Q: Modify the BookStore and BookSearchEngine classes explained in the class to include the following…

A: Code and Output start from step-2.

Q: Uising the code below. Write a test class called CircleTest that implement below specification: a).…

A: The objective of the question is to create a test class called CircleTest that uses an ArrayList to…

Q: 2. The class PetShop has a single field as defined below: private ArrayList petList; Define a…

A: Given that petList is an ArrayList that stores cat details. private ArrayList petList can be…

Q: The fleet class includes a constructor that creates an array to store the entire fleet of Delta…

A: This is a Java class called Fleet, which represents a collection of Aircraft objects. The class has…

Q: Write a method in your ArrayUtilities class that meets the following requirements: - It should be…

A: The problem is based on the basics of functions in java programming language.

Q: Students make the Dean's list if their GPA is 3.5 or higher. Complete the Course class by…

A: According to the information given:- We have to Create method findStudentHighestGpa() having no…

Q: 2. Write a class ArravClass, where the main method asks the user to enter the f num bers. Create a…

A: Java code: import java.util.Scanner;import java.util.Arrays; public class ArrayClass{ public…

Q: The current balance is $100.0 Main Menu: 1: check balance 2: deposit 3: withdraw 4: exit 2 Enter the…

A: makeSelection methodThis method does not return a value and has 2 parameters: the account index (you…

Q: in Java Develop a method called normalizeGrades() in Java following the details below: The method…

A: Use a loop to iterate over the given grades and then fill the integer array and then the character…

Q: Challenge 3: Scores.java and TestScores.java Implement a Scores class. The class constructor should…

A: Here we have given solution of the given task. You can find the solution in step 2.

Q: Image one is my file or you can create ur own file as long as it's similar to mine. image 2 is my…

A: Algorithm: Step1: Start Step2: Prompt user to enter the name of the file Step3: Read filename…

Concept explainers

Array

The simplest way to start thinking about an array is as a collection, or a set of elements. In programming, these elements may be constants, variables, functions and pointers.

Question

In java
Write a class with a main() method. The main() method should declare and initialize four different ArrayLists,
each containing at least four int values. The class should also contain a method named fiveEight.
Given an ArrayList of ints, the fiveEight should return the int 30 if every element of the given ArrayList is either
a 5 or a 8; otherwise, it should return -9. There should be four calls to the allfiveEight method in the main() method.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

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 method in your ArrayUtilities class that meets the following requirements: - It should be named "counts". - It should declare a parameter for an int array. You may assume that the array will contain only non-negative values. - It should return an int array where the value at each index is the count of how many times the index appears in the original array. For example, if the original array contained the value 10 3 times, then the value at index 10 in the count array should be 3. - Hint: the size of the array is determined by the maximum value in the original array. If the original array is empty, the count array should also be empty. A more detailed example: Given the int array [1, 2, 3, 4, 4, 1, 1, 2, 0, 6], your function would return the array [1, 3, 2, 1, 2, 0, 1]. The value at each index indicates how many times the index appears in the original array. The value at index 0 is 1 because appears 1 time in the original array. The value at index 1 is 3 because 1 appears 3…
Given these three ArrayLists: ArrayList collectionA = new ArrayList(); ArrayList collectionB = new ArrayList(15); ArrayList collectionC = new ArrayList(25) ; After adding 390 items to each collection, answer the following two questions: Blank 1: Which ArrayList has the largest capacity for the array data member being used internally for storing the items in the object? Blank 2: What is the capacity for the object in blank one? Blank # 1 A Blank # 2 A
Write a class ArrayMethods, where the main method asks the user to enter the number of inputs and stores them in an array called myList. Create a method printArray that prints the array myList. Create another method copyArray that copies the array using System.arraycopy, and multiplies each element in the copied array by 2, then finally returns the array to the main method. Invoke the printArray again to print the array returned by copyArray.
Write a method in your ArrayUtilities class that meets the following requirements: - It should be named "counts".] - It should declare a parameter for an int array. You may assume that the array will contain only non-negative values. - It should return an int array where the value at each index is the count of how many times the index appears in the original array . For example, if the original array contained the value 10 3 times, then the value at index 10 in the count array should be 3. - Hint: the size of the array is determined by the maximum value in the original array. If the original array is empty, the count array should also be empty. A more detailed example: Given the int array [1, 2, 3, 4, 4, 1, 1, 2, 0, 6], your function would return the array [1, 3, 2, 1, 2, 0, 1]. The value at each index indicates how many times the index appears in the original array. The value at index 0 is 1 because 0 appears 1 time in the original array. The value at index 1 is 3 because 1 appears 3…
Using Java
The editTemperatures() method takes in two parameters: integer array tempData and integer numMore. Complete editTemperatures() to create a new array called arrayCopy with the same elements as tempData, and the size increased by numMore. Ex: If the input is: 10 48 49 18 3 then the output is: 10 48 49 18 0 0 0 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 Scannerscnr=newScanner(System.in); int[] degreesFahrenheit=newint[4]; intinput; inti; for (i=0; i<degreesFahrenheit.length; ++i) { degreesFahrenheit[i] =scnr.nextInt(); } // Read number of values to increase array size by input=scnr.nextInt(); degreesFahrenheit=editTemperatures(degreesFahrenheit, input); for (i=0; i<degreesFahrenheit.length; ++i) { System.out.print(degreesFahrenheit[i] +" "); } } }
JAVA
Write the definition of a method reverse, whose parameter is an array of chars. The method reverses the elements of the array. The method does not return a value.
Chapter 7. PC #1. Rainfall Class Write a RainFall class that stores the total rainfall for each of 12 months into an array of doubles. The program should have methods that return the following: • the total rainfall for the year • the average monthly rainfall • the month with the most rain • the month with the least rain Demonstrate the class in a complete program. Main class name: RainFall (no package name) PLEASE MODIFY THIS CODE SO WHEN I UPLOAD IT TO HYPERGRADE IT PASSES THE TEST CASES. IT HAS TO PASS THE TEST CASES BECAUSE WHEN I UPLOAD IT TO HYPERGRADE IT DOES NOT PASS THE TEST CASES. I HAVE PROVIDED PROOF OF THE PART OF THE TEST CASE THAT FAILED. import java.util.Scanner;public class Rainfall{ double rain[]; public Rainfall() { rain = new double[12]; } public double averageRainfall() { return getTotalRain()/12.0; } public double getTotalRain() { double total = 0.0; for(int i=0;i<12;i++)…
5. Complete the class code below and include a method named partition which takes an integer array and a partition integer as parameters and then partitions the original array into two new arrays where elements of the first array are all less than or equal to the partition integer and the second array are all greater than the partition integer. The method should print the original array, followed by the lower partition and finally the upper partition. Nothing should be returned by the method. For example, given int[ ] arr = {1, 45, 16, 7, 39, 6, 5, 11, 72, 31, 15} a method call to partition(arr, 11) should output: %3D [1, 45, 16, 7, 39, 6, 5, 11, 72, 31, 15] [1, 5, 6, 7, 11] [15, 16, 31, 39, 45, 72] public class Partition { public static void main(String[] args) { int[] arrayToPartition = {1, 45, 16, 7, 39, 6, 5, 11, 72, 31, 15}; %3D int partitionNumber = 11; partition(arrayToPartition, partitionNumber); } /l your method code here } // end of Partition class
Complete the Course class by implementing the courseSize() method, which returns the total number of students in the course. Given classes: Class LabProgram contains the main method for testing the program. Class Course represents a course, which contains an ArrayList of Student objects as a course roster. (Type your code in here.) Class Student represents a classroom student, which has three fields: first name, last name, and GPA. Ex. For the following students: Henry Bendel 3.6 Johnny Min 2.9 the output is: Course size: 2 public class LabProgram { public static void main (String [] args) { Course course = new Course(); // Example students for testing course.addStudent(new Student("Henry", "Bendel", 3.6)); course.addStudent(new Student("Johnny", "Min", 2.9)); System.out.println("Course size: " + course.courseSize()); } } public class Student { private String first; // first name private String last; // last name private…
In Java please. Add comments too! thank you!