BTNode.java

public class BTNode implements Position{

	String word;
	int wordCounter=0;
	BTNode left, right, parent;
	public BTNode(String s, BTNode u, BTNode v, BTNode w){
		word = s; 			// ?setElement(word);
		left = u; 			//???setLeft(left);
		right = v; 			//???setRight(right);
		parent = w;			//????setParent(parent);
		}
	public String getElement() { //I think same as getElement()
		return word;
	}

	public int getWordCounter() {	///that's it ? or more?
		return wordCounter;
	}

	public void increaseWordCounter() {   ///not sure if we have to do more here
		wordCounter++;
		}

	//-----------------------------------

	public BTNode getLeft() {
		return left;
	}

	public void setLeft(BTNode v) {
		left = v;
	}

	public BTNode getRight() {
		return right;
	}

	public void setRight(BTNode v) {
		right = v;
	}

	public BTNode getParent() {
		return parent;
	}

	public void setParent(BTNode v) {
		parent = v;
	}
	/*
	public String getElement(){	//not sure with the given just element() method
		return word;   //return the word at a specific position using interface Position;
	}
	*/
	public void setElement(String e){
		word = e;
	}
}