package java8;

import java.util.ArrayList;

import java.util.List;

public class DefaultMethodsLesson {

public static void main(String[] args) {

List<String> list = new ArrayList<>();

list.stream();

System.out.println(Parent.add(5, 5));

Parent parent = new Child();

parent.callPrint();

B b = new D();

b.exec();

}

}

interface Parent {

void printMessage(String message);

default void callPrint() {

printMessage("hello");

}

static int add(int x, int y) {

return x + y;

}

}

class Child implements Parent {

@Override

public void printMessage(String message) {

System.out.println(message);

}

@Override

public void callPrint() {

printMessage("test");

}

}

interface B {

default void exec() {

System.out.println("B");

}

}

interface C extends B {

default void exec() {

System.out.println("C");

}

}

class D implements B, C {

// @Override

// public void exec() {

// System.out.println("D");

// }

}