Code for exercise is not working any more.

so I am trying to follow along with the teacher with the coding exercise but the code is not working any more I'm hoping someone to be my second eyes and tell me what is going on with it.

Example.java code:

public class Example {

public static void main(String[] args) { // Your amazing code goes here... System.out.println("We are making a new PEZ dispenser"); System.out.printf("FUN FACT: There ar %d PEZ allowed in every dispenser %n", PezDispenser.MAX_PEZ); PezDispenser dispenser = new PezDispenser("Yoda"); System.out.printf("The dispenser is %s %n" , dispenser.getCharacterName() );
System.out.println("filling the dispenser with delicious PEZ..."); dispenser.fill(); }

}

PezDispenser.java:

class PezDispenser { public static final int MAX_PEZ = 12; final private String characterName; private int pezCount;

public PezDispenser(String characterName) { this.characterName = characterName; pezCount = 0; }

public void fill() { pezCount = MAX_PEZ; }

public String getCharacterName() { return characterName; }

public String swapHead(String characterName); String originalCharacterName = this.characterName; this.characterName = characterName; return originalCharacterName; }