java-design-patterns/flyweight/src/main/java/com/iluwatar/InvisibilityPotion.java

package com.iluwatar;

public class InvisibilityPotion implements Potion {

	@Override
	public void drink() {
		System.out.println("You become invisible. (Potion="
				+ System.identityHashCode(this) + ")");
	}

}