n java Write a method public static ArrayList append(ArrayList a, ArrayList b) that appends one array list after another. Ex: a = 1 2 3 4 5, b = 6 7 8 9 10 then append returns 1 2 3 4 5 6 7 8 9 10
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In java
Write a method
public static ArrayList<Integer> append(ArrayList<Integer> a, ArrayList<Integer> b)
that appends one array list after another.
Ex: a = 1 2 3 4 5, b = 6 7 8 9 10
then append returns 1 2 3 4 5 6 7 8 9 10
Step by step
Solved in 2 steps
- In java Write a method public static ArrayList<Integer> merge(ArrayList<Integer> a, ArrayList<Integer> b) that merges one array list with another. Ex: a = 1 2 3 4 5, b = 6 7 8 9 10 then merge returns 1 6 2 7 3 8 4 9 5 10java Create a static method that: is called repeatAll returns ArrayList of Booleans takes in a single parameter - an ArrayList of Booleans This method should modify its ArrayList parameter by repeating its ArrayList values. For example, if the parameter is (true, false, false) The modified ArrayList should be (true, false, false, true, false, false) public static void main(String[] args) { Scanner in = new Scanner(System.in); int size = in.nextInt(); ArrayList<Boolean> list = new ArrayList<>(); for(int i=0; i < size; i++) { list.add(in.nextBoolean()); } System.out.println(repeatAll(list)); } }Write a Java class Course for dealing with courses. Your class must have the following features: Course - name: String - lineNumber: int - symbol: String - sections: ArrayList + Course() + Course(name: String, lineNumber: int, symbol: String) + getName(): String + getLineNumber(): int + getSymbol(): String + getSections(): ArrayList + addSection(section: Section): void + Override toString() method: you have to return needed data Fields values. addSection(section: Section) method add a section (number and the teacher for this section) to the array list of sections. Note: sectionNumber will be generated automatically. Write a Java class Section for dealing. Your class must have the following features: Section - number: int - teacher: Teacher - students: ArrayList + Section() + Section(number: int, techer: Teacher) + getNumber(): int + getTeacher(): Teacher + getStudents(): ArrayList + addStudent(student: Student): void + Override toString() method: you have to return needed data…
- In java A supermarket wants to reward its best customer of each day, showing the customer’s name on a screen in the supermarket. For that purpose, the store keeps an ArrayList.Create a class customer having id, name, gender, and bill provide appropriate getters/setters and constructors also provide toString method.In the Store class, make an ArrayList of customers, store name, and address implement methods public void addSale(Customer c) that will add customers to the arraylist.public void RemoveCustomer(int id);public void UpdateCustomerRecord(int Id);public displayAll();public String nameOfBestCustomer() to record the sale and return the name of the customer with the largest sale. public ArrayList nameOfBestCustomers(int topN) so that it displays the top customers, that is, the topN customers with the largest sales, where topN is a value that the user of the program supplies. Write a program that prompts following menu and ============================================…A supermarket wants to reward its best customer of each day, showing the customer’s name on a screen in the supermarket. For that purpose, the store keeps an ArrayList.Create a class customer having id, name, gender, and bill provide appropriate getters/setters and constructors also provide toString method.In the Store class, make an ArrayList of customers, store name, and address implement methods public void addSale(Customer c) that will add customers to the arraylist.public void RemoveCustomer(int id);public void UpdateCustomerRecord(int Id);public displayAll();public String nameOfBestCustomer() to record the sale and return the name of the customer with the largest sale. public ArrayList nameOfBestCustomers(int topN) so that it displays the top customers, that is, the topN customers with the largest sales, where topN is a value that the user of the program supplies. Write a program that prompts following menu and ============================================…java Create a static method that: is called appendPosSum returns an ArrayList of Integers takes one parameter: an ArrayList of Integers This method should: Create a new ArrayList of Integers Add only the positive Integers to the new ArrayList Sum the positive Integers in the new ArrayList and add the Sum as the last element For example, if the incoming ArrayList contains the Integers (4,-6,3,-8,0,4,3), the ArrayList that gets returned should be (4,3,4,3,14), with 14 being the sum of (4,3,4,3). The original ArrayList should remain unchanged. public static void main(String[] args) { Scanner in = new Scanner(System.in); int size = in.nextInt(); ArrayList<Integer> list = new ArrayList<>(); for(int i=0; i < size; i++) { list.add(in.nextInt()); } System.out.println(appendPosSum(list)); } }
- Write a Java method named average. The method should take an ArrayList of Integers as a parameter, compute the average of the elements in the ArrayList and return the average to the calling method.Write the method printTail() method that accepts an array of integers and an integer index as parameters and prints all the array elements starting from the index passed. For example if printTail(x,5) is invoked, it should print all the elements of the array x starting at x[5]. !!!!LANGUAGE: JAVA!!!!Write a Program in Java programming: Support you have an ArrayList containing random integers. These integers can be any number, and each integer can appear more than once. For example, [2, 19, 21, 19, 21, 1, 3, 3, 6, 21, .....] Your job is to write a method called findEvenFrequentNumbers(ArrayList<Integer> list) that returns an ArrayList which has all the numbers appears in even frequency and in increasing order. e.g. list = [2, 19, 21, 19, 21, 1, 3, 3, 6, 21], should return [3, 19] list = [3, 3, 3, 1, 2, 2, 2, 2, 2], should return [] list = [1, 1, 1, 1, 1], should return [1] Note that you need to provide a class with the main function and also the imports.
- Java 1. Implement ArrayUnorderedList<T> class which will extend ArrayList<T> by defining the following additional methods(i) public void addToFront(T element); //Adds the specified element to the front of the list.(ii) public void addToRear(T element); //Adds the specified element to the rear of the list.(iii) public void addAfter(T element, T target); //Adds the specified element after the specified target element.a. Create an object of ArrayUnorderedList<T> class and perform some add, remove, and search operations and finally print the entire Stack.java Write a method that takes rows and columns as a parameter, and returns a 2D array of the designated size, filled with empty Strings. I currently have public static String[][] createArray(int row, int col) { String[][]arr=new String[row][col]; return arr; } but it returns the 2d array filled with null?java Create a method that: is called timesTwo returns an ArrayList of Integers takes in a single parameter - an ArrayList of Integers called nums This method should take the ArrayList parameter and multiply every value by two. public static void main(String[] args) { Scanner in = new Scanner(System.in); int size = in.nextInt(); ArrayList<Integer> list = new ArrayList<>(); for(int i=0; i < size; i++) { list.add(in.nextInt()); } System.out.println(timesTwo(list)); } }