Question

java

Generics Objectives: OOWorking with a Generic Class 1. Create a class called Node that is Generic. The class has one class attribute that is an element. It will need 2 Constructors, a setter and getter for the class attribute, and a toString method. 2. Write a Lab10Driver that will: Instantiate a Node Integer object with no value. I. Il. Ill. IV. a. Then call the set method to set the value to 5. Instantiate a Node String object with no value. a. Then call the set method to set the value of Daryn. Instantiate a Node Double object using the non-empty Constructor to set the value to 7.34 Instantiate an ArrayList that is of Node data type (if you want to get rid of the yellow line under Nodes here, add the suppression warring of "rawtypes") and add a. A Node Integer with the value of 8 b. A Node String with a value of Tia C. A Node Double with the value of 16.68 V. Call the toString method for every object ard the ArrayList. 3. Go back to your Node class and add another class attribute, this one being a Node with the variable name next. a. Add this new class attribute to both of the Constructors assigning the value of null. b. Create a setter and getter for this new class attribute. c. Add the new class attribute to your toString 4. In the Lab10Driver 1205 PM rP ^ dx 4/11/2019 one being a Node with the variable name next. a. Add this new class attribute to both of the Constructors assigning the value of null b. Create a setter and getter for this new class attribute. c. Add the new class attribute to your toString. 4. In the Lab10Driver: I. II. Ill. In SOPIn's: Instantiate a new Node Integer using the non-empty Constructor to set the value to 20 Use the Node you just instantiated and call the setNext method passing a new Node with the value of Sue. i. Call the tostring method for the Node from Part 3 ii. Call the getNext method on the Node from Part 3 Notice how the data is printed for a Node verse a next Node. Be sure to have a TA grade your work using the queue system and submit your work to Blackboard or you will not receive a grade

Answer 1

Thanks for the question, here is generic class Node.java and the driver class. If you run the program it will output

5

Daryn

7.34

8

Tia

16.68

20, next: Sue

==========================================================================================

//Question 1
public class Node<T> {

    private T element;
    // Question 3
    private Node next;

    public Node(T element) {
        this.element = element;
        next = null; // 3.a
    }

    public Node() {
        this.element = null;
        next = null; // 3.a
    }

    public T getElement() {
        return element;
    }

    public void setElement(T element) {
        this.element = element;
    }

    @Override
    public String toString() {
        if (next==null)
        return this.element.toString() ;
        else // 3.c
            return this.element.toString() + ", next: " + next.toString();
    }

    // 3.b
    public Node getNext() {
        return next;
    }
    // 3.b
    public void setNext(Node next) {
        this.next = next;
    }
}

==========================================================================================

import java.util.ArrayList;



public class Lab10Driver {



    public static void main(String[] args) {



        // Question 2 I, II, III

        Node<Integer> intNode = new Node<>();

        intNode.setElement(5);

        Node<String> strNode = new Node<>();

        strNode.setElement("Daryn");

        Node<Double> dblNode = new Node<>();

        dblNode.setElement(7.34);



        // Question IV

        ArrayList<Object> nodeData = new ArrayList();

        nodeData.add(new Node<>(8));

        nodeData.add(new Node<>("Tia"));

        nodeData.add(new Node<>(16.68));



        // question V

        System.out.println(intNode);

        System.out.println(strNode);

        System.out.println(dblNode);



        for(Object obj : nodeData){

            System.out.println(obj);

        }



        // 4 I

        Node<Integer> integerNode = new Node<>(20);

        // 4 II

        integerNode.setNext(new Node<>("Sue"));

        // 4 III

        System.out.println(integerNode);





    }

}