Can anyone see what I did wrong?
package de.codegym.task.task13.task1303;
/*
Mische Bier nicht mit Cola
*/
public class Solution {
public static void main(String[] args) throws Exception {
print(new Beer());
print(new Cola());
}
private static void print(Drink drink) {
System.out.println(drink.getClass().getSimpleName());
}
public interface Drink {
boolean isAlcoholic();
}
public static class Beer implements Drink{
public boolean isAlcoholic(){
return true;
}
}
public static class Cola implements Drink {
public boolean isAlcoholic(){
return true;
}
}
}