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Java Tutorial : Java default method in super interface

InterfaceA.java

public interface InterfaceA
{
    default public void sayWelcome()
    {
        System.out.println("Welcome by InterfaceA");
    }
}

InterfaceB.java

public interface InterfaceB extends InterfaceA
{
    
}

InterfaceC.java

public interface InterfaceC extends InterfaceA
{
    
}

MyClass.java

public class MyClass implements InterfaceB,InterfaceC
{

}

public class DefaultMethodTest
{

    public static void main(String[] args)
    {
        MyClass myClassObj = new MyClass();
        myClassObj.sayWelcome();
    }

}