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- write a program that reads the students.txt file and stores the name of the student and the grade information as a student object in an arraylist sorts the students names based on their first grade in decreasing order using the selection sort algorithm writes the sorted list as the students last name , middle name (if theres one), first name , and grade information into a text file output example: Robison, Lee 95 80 Green, Alex R 85 60 Waston, Zoe G 100 80 use javaarrow_forwardA programmer is designing a program to catalog all books in a library. He plans to have a Book class that stores features of each book: author, title, isOnShelf, and so on, with operations like getAuthor, getTitle, getShelf Info, and set Shelf Info. Another class, LibraryList, will store an array of Book objects. The LibraryList class will include operations such as listAll Books, addBook, removeBook, and searchForBook. The programmer plans to implement and test the Book class first, before implementing the LibraryList class. The program- mer's plan to write the Book class first is an example of (A) top-down development. (B) bottom-up development. (C) procedural abstraction. (D) information hiding. (E) a driver program.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_forward
- In this project you will generate a poker hand containing five cards randomly selected from a deck of cards. The names of the cards are stored in a text string will be converted into an array. The array will be randomly sorted to "shuffle" the deck. Each time the user clicks a Deal button, the last five cards of the array will be removed, reducing the size of the deck size. When the size of the deck drops to zero, a new randomly sorted deck will be generated. A preview of the completed project with a randomly generated hand is shown in Figure 7-50.arrow_forwardThis code should be working at repl.itarrow_forwardI'm trying to write a Java program that stores a text file of integer values into a 2D array. The integers in each column are separated by commas. I also want to print out the 2D array after it is created this is the text file: Input.text 15, 50, 62, 72, 73, 74 58, 60, 70, 73, 76, 82 43, 59, 65, 72, 82, 65 18, 42, 63, 69, 73, 85arrow_forward
- Write a program that reads 10,000 words into an array of strings. The program will then read a second file that contains an undetermined number of words and search the first array for each word. The program will then report the number of words in the second list that were found on the first list. Read the 10,000 words from the "List of 10000 Random Words" text file into an array of strings. Then read the words from the "Search Words" text file, one at a time, and search for them in the array. Report the count of the number of words found.arrow_forwardCreate a text file called question2.txt and populate it with random characters, numbers,and symbols in a specific pattern. Write a Java program that implements an ArrayListto store the contents of this text file. The program should display the contents of thetext file in the console, and then sort the contents according to numeric order. Thesorted contents should be displayed in the console again.Note: Numeric order sorting rule is based on the numeric value of elements, such assorting a list of integers in odd-even order.arrow_forward1. Write a program to input a list of names (strings) from the user and store them in an ArrayList. The input can be terminated by entering the empty string or byentering the string “quit”. 2. Add further functionality to your program so that it searches the ArrayList to find the first string and the last string according to dictionary ordering and then prints out these strings (names). Do this exercise without sorting the names in the ArrayList. For example, if the list contains the following names: Charles Darwin Albert Einstein Issac Newton Tony Hoare Grace Hopper Edgar Dijkstra Ada Lovelace Charles Babbage Stephen Hawking Your program should output:The first name in the list in alphabetical order is: Ada Lovelace The last name in the list in alphabetical order is: Tony Hoarearrow_forward
- Java In this assignment, you will practice using an ArrayList. Your class will support a sample program that demonstrates some of the kinds of operations a windowing system must perform. Instead of windows, you will be manipulating “tiles.” A tile consists of a position (specified by the upper-left corner x and y), a width, a height, and color. Positions and distances are specified in terms of pixels, with the upper-left corner being (0, 0) and the x and y coordinate increasing as you move left and down, respectively. You won’t have to understand a lot about tiles and coordinates. That code has been written for you. You are writing a small part of the overall system that keeps track of the list of tiles. You are required to implement this using an ArrayList. The only method you need to use from the Tile class is the following: // returns true if the given (x, y) point falls inside this tile public boolean inside(int x, int y) Your class is to be called TileList and must…arrow_forwardHow do I add several objects to an ArrayList in JAVA using a loop?arrow_forward1. Declare an array to save 4 Dog objects. The Dog class is provided below. Look into the Dog class and find what attributes are needed for a dog object. Then initialize five dogs with the following information: Lily, 5 years old Jacob, 2 years old Sugar, 8 years old Bush, 3 years old 2. Print out every dog using a for loop (use either regular for loop or for-each loop, your choice). But you may find when you print out, the name and age are not displayed. Why? 3. Fix this problem by implementing the toString method in the Dog class. Dog Class: public class Dog { private String name; private int age; public Dog(String name, int age) { this.name = name; this.age = age; } public void setName(String name) { this.name = name; } }arrow_forward
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