Create a Java program that will store 10 student objects in an ArrayList, ArrayList. A student object consists of the following fields: int rollno String name String address
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Create a Java program that will store 10 student objects in an ArrayList, ArrayList<Student>. A student object consists of the following fields:
- int rollno
- String name
- String address
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- Storing an ArrayList Create a Java program that will store 10 student objects in an ArrayList, ArrayList<Student>. A student object consists of the following fields: int rollno String name String address Implement two comparator classes to sort student objects by name and by rollno (roll number). Implement your own selection sort method and place your code in a separate Java source file. Do not use a sort method from the Java collections library.Storing an ArrayList Create a Java program that will store 10 student objects in an ArrayList, ArrayList<Student>. A student object consists of the following fields: int rollno String name String address Implement two comparator classes to sort student objects by name and by rollno (roll number). Implement your own selection sort method and place your code in a separate Java source file. Do not use a sort method from the Java collections library. ***Code from previous question does not work***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…
- Can you please help me with this, its in java. Thank you. Write classes in an inheritance hierarchy Implement a polymorphic method Create an ArrayList object Use ArrayList methods For this, please design and write a Java program to keep track of various menu items. Your program will store, display and modify salads, sandwiches and frozen yogurts. Present the user with the following menu options: Actions: 1) Add a salad2) Add a sandwich3) Add a frozen yogurt4) Display an item5) Display all items6) Add a topping to an item9) QuitIf the user does not enter one of these options, then display:Sorry, <NUMBER> is not a valid option.Where <NUMBER> is the user's input. All menu items have the following: Name (String) Price (double) Topping (StringBuilder or StringBuffer of comma separated values) In addition to everything that a menu item has, a main dish (salad or sandwich) also has: Side (String) A salad also has: Dressing (String) A sandwich also has: Bread type…True or False? In Java, an array of more than two dimensions cannot be declared.Assume we have Dessert.java whcih private String flavor has private double sweetness in it. Store.java This will be the class that stores the data for the dessert store. We are assuming that a store can sell all kinds of dessert. Variables: String name – name of the store. ArrayList desserts – an ArrayList of type Dessert Constructor(s): • A constructor that only takes in name and creates an empty ArrayList of type Dessert. Methods: • addDesserto This method should take in a valid Dessert object and add it to the back of the ArrayList. o This method should not return anything.o This method should run in O(1) time. • removeDesserto This method should take in a valid Dessert object and remove the first instance of it from the ArrayList. o Return the object that is being removed or null if the dessert is not found. o Use equals when identifying if the object in the ArrayList is the same as the passed in Dessert object. o This method should run in O(n) time. • findDessert o…
- This is a subclass and doesn't has a main method yet. class Vector{Object items[];int length;int size; void Grow(){// Duplicate sizesize = size * 2; // Allocate new itemsObject new_items[] = new Object[size]; // Copy old itemsfor (int i = 0; i < length; i++)new_items[i] = items[i]; // Discard old itemsitems = new_items; // MessageSystem.out.println("Growing capacity to " + size + " elements");} public Vector(){size = 2;items = new Object[2];} public void Print(){// MessageSystem.out.println("Content:"); // Traversefor (int i = 0; i < length; i++)System.out.println(items[i]);} public void Insert(int index, Object item){// Check indexif (index < 0 || index > length){System.out.println("Invalid index");return;} // Grow if necessaryif (length == size)Grow(); // Shiftfor (int i = length - 1; i >= index; i--)items[i + 1] = items[i]; // Insertitems[index] = item; // One more itemlength++; // MessageSystem.out.println("Inserted " + item);} public void Add(Object…code: public class PasswordGeneratorAndStorage {/*** Adds an application to the applications ArrayList. If index is -1, add application* to the end of applications. Else is index is within the size of applications, add* application at that index in applications. Otherwise, return. However, if applications * or application is null, return.* * @param applications* @param application* @param index*/public static void addApplication(ArrayList<String> applications, String application, int index) {// TODO: FILL IN BODY}/*** Generates a random password of length passwordLength and adds it to the end of* passwords if index is -1, or adds it to the index of passwords if index is within the* size of passwords (similar to how the addApplication adds an application). To generate* the random password, use rand to generate a random int within the size of characters. You* can then use this int to grab the char at that index in characters and concatenate that* to your String password variable.…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 ============================================…
- Write a code in Java programming: Suppose you have a functional interface like the following: interface MyFunction { List<Integer> modify(List<Integer> list); } Your colleague is sick, and he cannot finish his task. He gave you an unfinished code like the following: public static void main(String[] args) { List<Integer> numbers = new ArrayList<>(Arrays.asList(1, 2, 3, 4, 5)); System.out.println("Before: " + numbers); // MyFunction mf = // TODO List<Integer> modifiedList = mf.modify(numbers); System.out.println("After: " + modifiedList); } Your job is to complete the functional interface. The function takes a List of Integers and modifies it by performing the following operations: Remove any even numbers from the list. Square each number in the list. Thus if you complete the above code correctly, you should have an output like the below: Before: [1, 2, 3, 4, 5] After: [1, 9, 25] Note that you should not change the method signature of the functional…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 language Write a program in which you create an object of type ArrayList named BZ and then add 3 elements in this object and then copy the elements of the object in another object QZ and then cancel the elements of the object BZ and then write the necessary print statements to show it?