DefaultMethodsRule1.java

interface Parent {

	default public void methodOne() {
		System.out.println("Method one...");
	}
	
	default public void methodTwo() {
		System.out.println("Method two...");
	}
}

interface Child extends Parent{
	
}

public class ConcreteClass implements Child {
	public static void main(String[] args) 
	{
		ConcreteClass concreteClass = new ConcreteClass();
		concreteClass.methodOne();
		concreteClass.methodTwo();
	}
  }
}