subject

1. Write program, WriteData. java, that writes the following data to file books. txt. Include the semicolons. Fiction;Abraham Lincoln Vampire Hunter;Grahame-Smith;Wiley;NY;13.99 ;222 Fiction;Frankenstein;Shelley;Presco tt;GA;7.99;321 NonFiction;Life of Kennedy;Jones;Pearson;MT;12.90;biog raphy Fiction;Dracula;Stoker;Addison;CA;5 .99;145 Fiction;Curse of the Wolfman;Hageman;Wesley;MA;10.59;876 NonFiction;How to Pass Java;Willis;Wiley;NY;1.99;technolog y Fiction;The Mummy;Rice;Addision;CA;7.99;954 NonFiction;History of Texas;Smith;Prescott;CA;9.75;histor y 2. Write class Publisher with attributes name and state. 3. Rewrite the Book class to include a type Publisher attribute. 4. Write two children of the Book class: FictionBook and NonFictionBook. FictionBook has an additional attribute, fictionCode. NonFictionBook has an additional attribute, catagoryCode. 5. Rewrite the BookTest program. Method buildInstances will read the data from the file, create instances of FictionBook and NonfictionBook from the data, assign these instances to the Book array and return the bookArray as before. Since it is reading data from the file, it does not have any method parameters. 6. Method createCharges should work the same.

ansver
Answers: 3

Another question on Computers and Technology

question
Computers and Technology, 22.06.2019 13:10
Calculating the "total price" of an item is tedious, so implement a get_item_cost method that just returns the quantity times the price for an item. by the way, the technical term for this kind of instance method is an accessor method, but you'll hear developers calling them getters because they always start with "get" and they get some value from instance attributes. in order to make the items sortable by their total total price, we need to customize our class. search the lectures slides for "magic" to see how to do this. see section 9.8 for an additional reference. the receipt class: this will be the class that defines our receipt type. obviously, a receipt will consist of the items on the receipt. this is called the composition design pattern. and it is very powerful. instance attributes: customer_name : it is very important to always know everything you can about your customers for "analytics", so you will keep track of a string customer name in objects of type receipt. date : the legal team has required that you keep track of the dates that purchases happen for "legal reasons", so you will also keep track of the string date in objects of type receipt. cart_items : this will be a list of the items in the cart and hence end up on the receipt. methods: 1. create a default constructor that can take a customer name as an argument, but if it gets no customer name, it will just put "real human" for the customer_name attribute. it should also accept a date argument, but will just use the value "today" for the date instance attribute if no date is given. the parameters should be named the same as the instance attributes to keep things simple. 2. add_item : self-descriptive. takes a parameter which we hope beyond hope is of type itemtopurchase and adds it to the cart_items. returns none. 3. print_receipt : takes a single parameter isevil, with default value true. returns a total cost of all the items on the receipt (remember to factor in the quantity). prints the receipt based on the following specification: for example, if isevil is true, and customer_name and date are the default values: welcome to evilmart, real human today have an evil day! otherwise, it should print: welcome to goodgo, real human today have an good day! then the receipt should be printed in sorted order like we discussed earlier, but whether or not it starts with the highest cost (think reverse), depends on the value of isevil. if it is evil, then the lowest cost items should print first, but if it is good, then it will print the highest cost items first. (cost meaning price*quantity). remember to return the total cost regardless! your main() function: the main flow of control of your program should go in a main() function or the program will fail all the unit tests. get the name of the customer with the prompt: enter customer name: get the date with the prompt: enter today's date then, ask the question: are you evil? your program should consider the following as true: yeah yup let's face it: yes hint: what do these strings all have in common? your program should consider all the following as false: no nah perhaps but i'm leaning no (just be glad you don't have to handle "yeah no.") okay enough horsing around. (get it? aggies? ! horsing! ) next, in the main() function, you will have to create a receipt object and start adding things into it using an input-while loop. the loop will prompt the user for the item name exactly as in the previous zylab (9.11). but unlike the previous zylab, the loop will terminate only if an empty string is entered for the item name. then, the price and the quantity will be prompted for exactly as in the previous zylab. create the itemtopurchase objects in the same manner as the previous zylab, but don't forget to add them to the receipt using your add_item instance method. then, the items on the receipt should be printed with the same formatting as in the previous zylab, of course with either "good" or "evil" ordering. however, on the last line, the total should be printed as follows: where 10 is replaced by the actual total. sample run here is what a sample run of the final program should look like: enter customer name: nate enter today's date: 12/20/2019 are you evil? bwahahahaha yes enter the item name: bottled student tears enter the item price: 2 enter the item quantity: 299 enter the item name: salt enter the item price: 2 enter the item quantity: 1 enter the item name: welcome to evilmart, nate 12/20/2019 have an evil day! salt 1 @ $2 = $2 bottled student tears 299 @ $2 = $598 total: $600
Answers: 1
question
Computers and Technology, 22.06.2019 15:30
Whats are the different parts of no verbal comunication, especially body language?
Answers: 3
question
Computers and Technology, 24.06.2019 00:30
The best definition of an idiom is a. a word or phrase that describes a noun b. a word or phrase describing a verb c. a phrase containing figurative language in which the word expresses a different idea from its exact meaning d. a phrase that compares two unlike objects or ideas
Answers: 2
question
Computers and Technology, 24.06.2019 09:30
Retype the statements, correcting the syntax errors. system.out.println("num: " + songnum); system.out.println(int songnum); system.out.println(songnum " songs"); note: these activities may test code with different test values. this activity will perform two tests: the first with songnum = 5, the second with songnum = 9. see how to use zybooks.
Answers: 1
You know the right answer?
1. Write program, WriteData. java, that writes the following data to file books. txt. Include the se...
Questions
question
Mathematics, 30.10.2020 17:30
question
Arts, 30.10.2020 17:30
question
Geography, 30.10.2020 17:30
question
Mathematics, 30.10.2020 17:30
question
English, 30.10.2020 17:30
question
Mathematics, 30.10.2020 17:30
Questions on the website: 13722363