JAVA Data Structures Course: SEE IMAGE FOR QUESTION. Classes are below.

Here is the WordNode class:

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public class WordNode implements Comparable{

// Declaring variables

private String word;

private WordNode next;

// Constructor

public WordNode(String word) {

this.word = word;

}

// Getter for word

public String getWord() {

return word;

}

// Getter for next

public WordNode getNext() {

return next;

}

// Setter for next

public void setNext(WordNode next) {

this.next = next;

}

// Implementing unimplemented method compareTo

@Override

public int compareTo(WordNode wN) {

// TODO Auto-generated method stub

return word.compareTo(wN.word);

}

// Equals Method

@Override

public boolean equals(Object obj) {

// TODO Auto-generated method stub

WordNode w=(WordNode)obj;

return word.equals(w);

}

}

WORD LIST CLASS:

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public class WordList{

private WordNode head;

private WordNode tail;

}

WRITE THE FOLLOWING METHOD:

int countLongWords (int length) - Returns the number of words list where the word length is greater than length. Throws IllegalArgumentException with an appropriate message if length is negative. (20 points) in the