interface

interface pakaian {
    public void bersih();
    public void kotor();
}

public class interfaces implements pakaian {
    public void bersih() {
        System.out.println("Pakaian itu bersih");
    }
    public void kotor() {
        System.out.println("Pakaian itu kotor");
    }
    public static void main(String[] args) {
        interfaces i = new interfaces();
        i.bersih();
        i.kotor();
    }
}