NYP soyut sınıflar

main.java

package net.emirozturk;

interface Arayuz{
    void metot1();
    void metot2();
}
abstract class Sinif implements Arayuz{

}
class altSinif extends Sinif{
    public void metot1(){

    }
    public void metot2(){

    }
}
public class Main {
    static void fonk(Arayuz a){
        a.metot2();
    }
    public static void main(String[] args) {
        altSinif a = new altSinif();
        fonk(a);
    }
}