Write a statement that creates an ArrayList object and assigns its address to a variable named lizards. The ArrayList should be able to store String objects only.
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Write a statement that creates an ArrayList object and assigns its address to a variable named lizards. The ArrayList should be able to store String objects only.
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- Library class: Fields: books as arraylist to store all the books available in the library B3 B1 B2 В4 B5 Constructor: Library() } : No parameterized constructor to create the books object Methods: 1. addBook(Book bookobj): to add a new book to the arraylist; send the book object as a parameter to this method. 2. searchBook(String name): search a book by a given name in the arraylist. if exits print bookX found; otherwise print not found!!! 3. RemoveBook(String name): to delete a book object from arraylist by a given name: Hint: you need to use iterator class and remove method. Book class: Fileds: bookld, bookname. Constructor: two parameterized constructor that accepts name a parameter Book(int ID, String name) ..... Methods: 1. Accessor method to return the name of the book 2. Mutator method to change the id of the book. Use this Main method: in your program: public static void main(String args[]) { Library lib=new Library(); lib.addBook(new Book("b1")); lib.addBook(new Book("b2"));…Parameter: An array of strings. Return value: A list of the three strings that occur most frequently in the parameter array17. Phone Book ArrayList Write a class named PhoneBookEntry that has fields for a person's name and phone number. The class should have a constructor and appropriate accessor and mutator methods. Then write a program that creates at least five PhoneBookEntry objects and stores them in an ArrayList. Use a loop to display the contents of each object in the ArrayList.
- Design an application that declares an array of 20 AutomobileLoan objects. Prompt the user for data for each object, and then display all the values.10. Lottery Application Write a Lottery class that simulates a lottery. The class should have an array of five integers named lotteryNumbers. The constructor should use the Random class (from the Java API) to generate a random number in the range of 0 through 9 for each element in the array. The class should also have a method that accepts an array of five integers that represent a per- son's lottery picks. The method is to compare the corresponding elements in the two arrays and return the number of digits that match. For example, the following shows the lotteryNumbers array and the user's array with sample numbers stored in each. There are two matching digits (elements 2 and 4). lotteryNumbers array: User's array: 7 4 4 2 1 3 7 3 In addition, the class should have a method that returns a copy of the lotteryNumbers array. Demonstrate the class in a program that asks the user to enter five numbers. The program should display the number of digits that match the randomly generated…True or false: All elements in an array of objects must use the same constructor.
- Write the statement that declares and instantiates an array of type double using the identifier temperatures that will hold 30 values. Edit View Insert Format Tools Table 12pt v Paragraph v :Bubble Sorting an Array of ObjectsCreate a Student class and you will need to do the following: Enter the number of students (must be greater than 5). Enter the student’s names and grades Make sure that you enter the names and grades in random order. Iterate through the array of students and using the bubble sort, order the array by grade.Java 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…
- Assignment 5C: Level Map Creator. There are a variety of ways that game developers store their level layouts. One simple method is to associate level elements with certain symbols, and then storing them in a 2D grid inside a text file. We will use our knowledge of 2D arrays to create a very simple Level Map Creator tool. The program should prompt the user to enter a width and height for the level. Then it should initialize a 2D array and fill every element with the "*" symbol. Afterwards, the user should be given the following options via a menu: 1. Clear Level Re-initialize the 2D array and fill every element with the "*" symbol. 2. Add Platform Prompt the user to enter a starting point and length for the horizontal platform. Replace those elements in the 2D array with the "=" symbol. If the length is longer than the number of columns (or out of bounds), notify the user that this is not possible. 3. Add Item Prompt the user to enter a column and row index. Replace that element in the…Assignment 5C: Level Map Creator. There are a variety of ways that game developers store their level layouts. One simple method is to associate level elements with certain symbols, and then storing them in a 2D grid inside a text file. We will use our knowledge of 2D arrays to create a very simple Level Map Creator tool. The program should prompt the user to enter a width and height for the level. Then it should initialize a 2D array and fill every element with the *" symbol. Afterwards, the user should be given the following options via a menu: 1. Clear Level 2. Add Platform Prompt the user to enter a starting point and length for the Re-initialize the 2D array and fill every element with the "** symbol. horizontal platform. Replace those elements in the 2D array with the "=" symbol. If the length is longer than the number of columns |(or out of bounds), notify the user that this is not possible. Prompt the user to enter a column and row index. Replace that element in the 2D array…Lab Goal : This lab was designed to teach you how to use an array. Lab Description : Take a list of numbers that range in value from 0 to 9 and output how many occurrences of each number exist.
