Complete the following Programming Assignments. Use good programming style and all the concepts previously covered. Submit the java files (demo and application) electronically through Canvas by the above due date as well as UML diagrams, Pseudo-Code, Requirements Doc, Javadoc, etc. (This is the Chapter on Exceptions.) Submit all files via one (1) .Zip file (2 folders in zip) by the above due date. • TestScores Class • TestScores Class Custom Exception

Write The Use Of Package.

QUESTION 3 Which of the following is true about Introduce parameter object refactoring technique?1. Does not work with Java2. The technique is used to increase performance as it requires less memory3. You will need to create a new structure (class) for the grouped data if that structure does not already exist 4.Used to to shorten methods

In JAVA. Help with this would be greatly appreciated! Create the four data classes as above. Do NOT add any attributes or methods that don't appear in the UML diagrams. Create another, executable class named ShipTest as shown below to test these classes. In ShipTest: make two objects with declared type Ship but actual type CruiseShip. make one object of declared type Ship but actual type CargoShip. make one object of declared type CargoShip and actual type CargoShip. make a ship of declared type WarShip and actual type WarShip.   using the array initializer syntax, code all of these ships into an array of type Ship named fleet. code a for loop that processes the fleet array to show display all ships and their data. use a method of class Arrays to create an ArrayList of type Ship from the fleet array. pass this ArrayList to a method named shipShow that also displays all ships and returns an integer.  report the value of the integer returned by shipShow. In the shipShow method: from…

(1) Create two files. SongEntry.java - Class declaration Playlist.java - Contains main() method Build the SongEntry class per the following specifications. Note: Some methods can initially be method stubs (empty methods), to be completed in later steps. Private fields String uniqueID - Initialized to "none" in the default constructor string songName - Initialized to "none" in default constructor string artistName - Initialized to "none" in default constructor int songLength - Initialized to 0 in default constructor SongEntry nextNode - Initialized to null in default constructor Default constructor  Parameterized constructor  Public member methods void insertAfter(SongEntry currNode)  void setNext(SongEntry nextNode) - Mutator  String getID()- Accessor String getSongName() - Accessor String getArtistName() - Accessor int getSongLength() - Accessor SongEntry getNext() - Accessor void printPlaylistSongs() Ex. of printPlaylistSongs output: Unique ID: S123 Song Name: Peg Artist…

Assume that all source files are in the same package. Note that some lines may wrap, but are still considered on one line. Examine the code below. Recall that variables have four kinds of scope: static, instance, local, and block. For each variable listed below, identify its scope (static, instance, local, or block) and describe the scope using complete sentences. An example description is provided, after the code listing, for the ounces variable in the Beverage2 class. Please describe the scope for the following variables: The num variable in the Beverage2 class The price variable in the Beverage2 class The shots variable in the Espresso class The b variable in the TestBeverage2 class The j variable in the TestBeverage2 class   public abstract class Beverage2 {        private static int num;        private int ounces;        private double price;        protected Beverage2(int ounces, double price) {               this.ounces = ounces;               this.price = price;…

Please help me on these questions on my Java Program Questions 1-7 involve writing a Java storage class called Student that keeps track of a student's first name, last name and the number of credits being taken in a semester.. Write down the declarations for the instance variables. Question 2: Write down the mutator methods for the instance variables. You don't need to check for the passed values other than trimming any String values. Question 3: Write down a constructor that allows setting all of the instance variables. You can simply call the mutator methods you came up with in question 2. Question 4: Write down all the accessor methods for the instance variables. Question 5: Create a toString() method that will return: Jane Doe, credits: 12 if Jane Doe is taking 12 credits Question 6: Rewrite the mutator for the first name, so that if a blank String is passed to this method, the first name is set to "NOFIRST". Question 7: Rewrite the mutator for the number of credits, so that if a…