package diamond;

public interface A {

void doSomething();

}

package diamond;

public class B implements A {

@Override

public void doSomething() {

System.out.println("Doing something the B way");

}

}

package diamond;

public class C implements A {

@Override

public void doSomething() {

System.out.println("Doing something the C way");

}

}

package defaultmethods;

public class B implements A {

}

package defaultmethods;

public class DefaultMethods {

public static void main(String[] args) {

B b = new B();

b.doSomething();

}

}

package defaultmethods;

public interface A2 {

public default void doSomething() {

System.out.println("I am A2");

}

}

package defaultmethods;

public class B implements A, A2 {

}

package defaultmethods;

public class B implements A, A2 {

@Override

public void doSomething() {

A2.super.doSomething();

}

}