List the major functions provided by the port scanner.

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chainLv10

18 Aug 2023

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Jarrod RobelLv2

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(d) Suppose there is a class Book Store and inside this, is a method with the following header: public boolean stockWarehouse (String filename) throws Not EnoughFunds Exception You then write the following code inside the class Shoppingmall: 1 import java.util.Scanner; 3 public class Shoppingmall sous- public initialize void initialize(String[] args) Bookstore indigo - new Bookstore); Scanner reader - new Scanner (System.in); System.out.println("Please enter the file with the list of contents to buy."); String Filename - reader.nextLine(); indigo.stockWarehouse (filename) However, you get the following crror: Shoppingmall.java:10: unreported exception Not EnoughFundsException; must be caught or declared to be thrown indigo.stockWarehouse (filename); 1 error 1)Explain why the error occurs and write the code to fix it.

FDC owns a very expensive, state of the art dental scan machine (a device far superior to a traditional dental X-ray machine) manufactured by Toshiba, Japan. FDC will be owning just one such machine in the foreseeable future. When modelling and implementing FDC system in software, you must ensure that only one instance of that machine is created. Which design pattern could come to your assistance? Justify your answer. Provide a UML diagram and an implementation for the pattern you have recommended. You may include suitable attributes for the machine such as serial number, make, country of origin and cost. Your implementation should allow the user to enter details of the dental scanner and create the sole instance of that machine. Any attempt to create more than one instance of the scanner must be prevented. Provide screenshots and source code listing as evidence of program execution.

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5. Consider the following class: import java.util.Scanner; public class Money private int dollars; private int cents; public Money (int d, int c) { dollars = d; cents = c; /* Point 1 */ public String toString() { String result; if (cents > 100) int totalCents = dollars * 100 + cents; dollars = totalCents / 100; cents = total Cents % 100; /* Point 2 */ /* Point 3 */ result = "$" + dollars + ", " + cents + "C"; return result; public static void main(String[] yourGrandfather) Scanner keyboard - new Scanner (System.in); Money amount; int C; /* Point 4 */ System.out.print("Enter an amount in cents: "); C = keyboard.nextInt (); amount = new Money (c/ 100, CX 100); System.out.println("You have: " + amount.toString()); The above program compiles and runs without error. Which variables are in scope at each of the points marked by comments in the above class? In other words, if each of these comments were replaced by an actual Java statement, which variables could be used in this statement without a prefix (that is, without having to write the name of a class or other variable in front of the variable name) and without the compiler reporting an unknown variable error? List each variable that is in scope at each of the points marked by comments in the above class, and indicate whether it is an instance variable, a formal parameter, or a local variable. Note that you will be penalized for every variable that is out of scope at a given point but that you list as being in scope at that point.

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