this data structure hw, need your help

Generic Method Copy the class and run the program public class PrintArrayElements public static void main(String[] args) // create arrays of Integer, Double and Character Integer) integerArray = {1,2,3,4,5,6); Double doubleArray = {1.1, 2.2, 3.3, 4.4, 5.5, 6.6, 7.7}; Character characterArray = {'H', 'E', 'L', 'L', '0'); System.out.printf("Array integerArray contains:%n"); printArray(integerArray); // pass an Integer array System.out.printf("%nArray doubleArray contains:9n"); printArray(doubleArray); // pass a Double array System.out.printf("%nArray characterArray contains:%n"); printArray(character Array); // pass a Character array // method printArray to print Integer array public static void printArray(Integer inputArray) // display array elements for (Integer element:inputArray) System.out.printf("%s", element); System.out.println(); // method printArray to print Double array public static void printArray(Double[inputArray) // display array elements for (Double element:inputArray) System.out.printf("%s", element): System.out.println(); // method printArray to print Character array public static void printArray(Character inputArray) // display array elements for (Character element:inputArray) OM C 77 methoprintArray to print Double array public static void printArray(Double[inputArray) W/ display array elements for (Double element: inputArray) System.out.printf("%s", element); System.out.println(); // method printArray to print Character array public static void printArray(Character[] inputArray) // display array elements for (Character element:inputArray) System.out.printf("%s", element); System.out.println(); } // end class Overloaded Methods*** The class above has three different methods called printarray but each one has parameter of different data type. We call this Note the three methods performed the same operations but with different types. We can replace the three methods with one generic method as follows W/ generic method printArray public static void printArray() inputArray) 7/ display array elements for (T element : inputArray) System.out.printf("%s", element); System.out.println(); Notes 1- All generic method declarations have a type parameter section (ST), which appears before method return type. 2- Type parameter is an identifier that specifies a generic type name. 3. Type parameter can be used to declare return type, parameter types, local variables, 4. Type parameter can represent only objects, not primitive types. Exercise Add another generic method shift that receives an array and shifts its element one position to the left as depicted by the following figure 0 1 2 3 4 So after calling the method, the above array will be as follows 5 731 4 Call your method in the main with different types of arrays, print the array before and after calling the function. Generic Class Assume we would like to implement the concept of a queue to process set of objects, we want our class to be general for any type of objects. Remember the basic idea of queue concept is adding new elements at the end and removing elements from the beginning. import java.util.ArrayList; public class Queue { public ArrayList elements new ArrayList(); public void add(Te) elements.add(e); public I remove() return elements.remove(0); Exercises 1. Create new class Employee that has id(int), namedString), salary(double). a. add constructor, setter getter methods b. add method to String returns string contains all data 2. Create new class Car that has plateNo(int), brand(String). a. add constructor, setter/getter method b. add method toString returns string contains all data, 3- Copy class Queue above a. add method print to print data of all elements in the queue b add method reverse that reverse elements order in the list. 4. Create class Generic App which has main method, a create two queues one for Employee objects and one for Car objects b. Add objects to cach queue and test the methods